heating. Induction heating is the process of heating an electrically conducting object usually ... within the metal and resistance leads to Joule heating of the metal. An induction heater for any ... depth. Applications Image Induction heating of bar.jpg 300px thumb Induction heating of 25 mm metal bar using 15 kW at 450 kHz. Induction heating allows the targeted heating of an applicable item for applications including surface hardening, melting, brazing and soldering and heating to fit. Iron and its steel alloys respond best to induction heating, due to their ferromagnetic nature ... in any magnetic material. Induction heating has been used to heat liquid conductors such as molten metals and also gaseous conductors such as a gas plasma see Induction plasma technology . Induction heating ... industry for the heating of silicon and other semiconductors. Supply frequency mains, 50 60 Hz induction heating is used for many lower cost industrial applications as inverters ... or inert atmosphere. Vacuum furnaces make use of induction heating for the production of specialty steels ... the open seam, heating it. Induction cooking In induction cooking , an induction coil in the cook top ... uniform results and is very repeatable. Induction sealing Induction heating is used in cap sealing ... or jar opening and heating by induction to fuse it to the container. This provides a tamper ... of Induction Heating CRC Press, 2003 ISBN 0824708482 page 92 ref Heating to fit Induction heating is often ... passing through the centre of the bearing. Heat treatment Induction heating is often used in the heat ... annealing to selectively soften a selected area of a steel part. Induction heating can produce high ... control of the heating pattern with the pattern following the applied magnetic field quite closely ... specialized engineering and copper fitting . Plastic processing Induction heating is used in the industrial applications of plastic process with injection and extrusion machines. The induction heating ... more details
Image Fernheizwerk M dling von NordWest.jpg thumb Biomass fired district heating power plant in M dling , Austria File Wielu CieplowniaMiejska3.jpg thumb upright Coal heating plant in Wielu Poland Image C0253 GAST.jpg thumbnail right The cancelled Russian Gorky Nuclear Heating Plant in Fedyakovo, Nizhny Novgorod Oblast . District heating less commonly called teleheating is a system for distributing heat generated in a centralized location for residential and commercial heating requirements such as space heating and water heating . The heat is often obtained from a cogeneration plant burning fossil fuels but increasingly biomass , although heat only boiler station s, geothermal heating and central solar heating are also used, as well as nuclear power . District heating plants can provide higher ... Heating with Combined Heat and Power CHPDH is the cheapest method of cutting carbon, and has ... heating system is as a minimum a heat only boiler station . Additionally a cogeneration plant also ... and district heating is very Efficient energy use energy efficient . A simple thermal ... Other heat sources for district heating systems can be geothermal heat, solar heat, surplus heat from industrial processes, and nuclear power. Nuclear energy can be used for district heating. The principles for a conventional combination of cogeneration and district heating applies the same for nuclear ... together provided 11.4 PJ of district heat in 2005. Russian nuclear district heating is planned to nearly ... 2011 09 25 ref Other nuclear powered heating from cogeneration plants are in the Ukraine, the Czech ... Nuclear District Heating The Swiss Experience ref Heat distribution Image Fernw rmespricher Theiss.JPG thumb right District heating accumulation tower from Theiss near Krems an der Donau in Lower Austria ... of Warwick s campus wide combined heat and power system. Image 2005 08 30 district heating pipeline.jpg upright thumb District heating pipe in T bingen, Germany Image Waerme Schulung CRC Wn ... more details
Electric trace heating , also known as electric heat tracing , heat tape or surface heating , is a system used to maintain or raise the temperature of pipes and vessels. Trace heating takes the form of an electrical heating element run in physical contact along the length of a pipe. The pipe must then be covered ... then maintains the temperature of the pipe. Trace heating may be used to protect pipes from freezing ... temperatures. Electric trace heating cables are an alternative to steam trace heating where ... 059323 X chapter 5 pages 5 198 through 5 201 ref Development Electric trace heating began in the 1930s ... from other applications. ref name Bilbro69 James Bilbro et al, Electric trace heating state of the art ... pages 476 480 ref Mineral insulated resistance heating cable was introduced in the 1950s, and parallel type heating cables that could be cut to length in the field became available. Self limiting thermoplastic ... 1977 ref Control systems for trace heating systems developed from capillary filled bulb thermostats ... 2000 and 2010 trace heating would account for 100 megawatts of connected load, and that trace heating ... and installation of electric trace heating systems include IEEE standards 515 and 622, British standard ... pages 50 56 ref Uses The most common pipe trace heating applications include Freeze protection Temperature maintenance Other uses of trace heating cables include Ramp and stair snow ice protection Gulley and roof snow ice protection Underfloor heating Door frame interface ice protection Window de .... Thermal insulation reduces the rate of heat loss but does not eliminate it. Trace heating is used ... . The thermostat will de energise the trace heating when it measures temperature rising past another ... hot water at outlets. The combination of trace heating and the correct thermal insulation for the operating ambient temperature maintains a thermal balance where the heat output from the trace heating matches the heat loss from the pipe. Self limiting or regulating heating tapes have been developed ... more details
Underfloor heating and cooling is a form of central heating and cooling which achieves indoor climate ... radiant heating and radiant cooling are commonly used to describe this approach because radiation is responsible ... of the space. ref name multiple Chapter 6, Panel Heating and Cooling, 2000 ASHRAE Systems and Equipment Handbook ref History Underfloor heating has a long history extending back into the Neoglacial ... heating from around the world. class wikitable width 100 Time period, c. BC ref name hist1 Bean, R., Olesen, B., Kim, K.W., History of Radiant Heating and Cooling Systems, ASHRAE Journal, Part 1, January ... hearth, was used both as kitchen range and heating stove. 1,000 Ondol type system used in the Aleutian ... dwelling one hearth located at the center was used for heating, the others at the perimeter was used ... Time period, c. AD ref name hist2 Bean, R., Olesen, B., Kim, K.W., History of Radiant Heating and Cooling ... type heating in public baths and homes ref. tabakhana, atishkhana, sandali but also use heat from ... floor heating with wide scale adoption. 1600 In France , heated flues in floors and walls are used ... heating system leading to the development of the Franklin stove . Steam based radiant ... Gallo, E., Jean Simon Bonnemain 1743 1830 and the Origins of Hot Water Central Heating, 2nd International ..., R., Central Heating and Forced Ventilation Origins and Effects on Architectural Design, JSAH, Vol ... mass of the building for cooling and heating. 1899 The earliest beginnings of polyethylene based pipes ... makes first trip to Japan, later incorporates various early forms of radiant heating in his projects ... promotes radiant heating using small bore water pipes. Asia continues to use traditional ondol and kang ... pipes used to radiant heat and cool several large buildings. ref Panel Heating, Structural Paper ... copper pipe radiant heating used throughout thousands of homes. Poor building envelopes on all continents ... to be the first instance of testing three types of plastic tubing for radiant floor heating in America ... more details
ref Sasic Kaligasidis, A et al. 2006 Upgraded weather forecast control of building heating systems. p ... distribution of heat energy in the heating system of a given property. Recently, special remote ..., A et al. 2006 Upgraded weather forecast control of building heating systems. p. 951 ff in Research ... such a system Inventor Stefan Berglund references Category Heating sv Prognosstyrning ... more details
heat exchanger A fan assisted radiator contains a heat exchanger fed by hot water from the heating ... supply. Underfloor main Underfloor heating Image Constructingheatedfloor.jpg thumb 250px In underfloor heating, tubing is placed on the floor throughout the room and later covered with a concrete layer during construction. Underfloor heating uses a network of pipes, tubing or heating cables is buried ... heating is more expensive in new construction than less efficient systems. It also is generally ... running along the base of a wall with a central heating element surrounded by radiating fins electric ... Heat resistant reflector Underfloor heating Bleed screw Thermostatic Radiator Valve Radiator Reflector References reflist External links Commons category Radiators Category Domestic heating Category Heating ... more details
beginning to expand in coming out of World War II. The first applications of the screen heating system ..., in a variety of industries, to be identified. Another significant invention for screen heating ... Screen Heating System In exploring ways to properly attach a transformer to a vibrating screen, Hanco International http www.hanco.com pioneered the Flux Power Screen Heating System http www.hanco.com ... time. The design eliminated the use of physical connections as seen in earlier screen heating .... , Flux Powered Screen Heating Systems are ideal. Heating the screen lessens surface tension from ..., adds to efficiency. Flux Powered Screen Heating Systems have been used and proven effective ... Image Original Screen Heating System.jpg An Original Screen Heating System Image Shunt Screen.jpg Shunt ... www.hanco.com Hanco International Screen Heating System 2009 . http www.hanco.com HancoScreenHeating.html ...&PageNum &Rtype &SectionNum &idkey NONE&Input View first page Category Heating ... more details
heating is the direct use of geothermal energy for heating applications. Humans have taken advantage ... use of a total of 270 petajoule PJ of geothermal heating in 2004. As of 2007, 28 gigawatt GW of geothermal heating capacity is installed around the world, satisfying 0.07 of global primary energy ... heating in 2005 ref name utilization Citation last Lund first John W. date June 2007 title Characteristics ... 1.5 53 district heating Iceland 24.5 1.84 42 district heating Japan 10.3 0.82 40 bathing onsen s Hungary 7.94 0.69 36 spas greenhouses Italy 7.55 0.61 39 spas space heating New Zealand 7.09 0.31 73 industrial uses 63 others 71 6.8 Total 273 28 31 space heating There are a wide variety of applications ... heating, and a third was used for spas. ref name IPCC Citation first1 Ingvar B. last1 Fridleifsson .... Geothermal systems tend to benefit from economies of scale, so space heating power is often distributed ... . ref Boise , Idaho , ref District Heating Systems in Idaho, http www.idwr.state.id.us energy alternative ... District Heating Systems ref is known as district heating . ref name EERE1 Extraction Main Ground ... geothermal heating is far more efficient than geothermal electricity generation and has less ... viable essentially anywhere in the world. One geothermal district heating system at Drake ... geothermal resources, a geothermal heat pump can still provide space heating and air conditioning ... pump appliance as a byproduct is used to heat the house. The addition of the ground heating ... directly for heating. Switching the direction of heat flow, the same system can be used to circulate ..., Johnson, Katherine 2008 , p. 9 7. ref This technology makes geothermal heating economically viable ... capacity of 15 GW extracted 88 PJ of geothermal energy for space heating. Global geothermal heat pump ... Aquae Sulis and used the hot springs there to feed thermae public baths and hypocaust underfloor heating ... commercial use of geothermal power. The world s oldest geothermal district heating system in Chaudes ... more details
and other parts 5 Water heater 6 Water storage tank 7 Hot water to domestic appliances Water heating .... Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating ... s , calorifiers , or geysers depending on whether they are heating Drinking water potable or non .... In Home domestic installations, potable water heated for uses other than space heating is also called domestic hot water DHW . In many countries the most common energy sources for heating ... power solar energy , heat pumps , hot water heat recycling , and geothermal heating , may .... In some countries district heating is a major source of water heating in densely populated urban areas. This is especially the case in Scandinavia . District heating systems make it possible to supply all of the energy for water heating as well as space heating from waste heat from industries, power plants , incinerator s, geothermal heating , and central solar heating . The actual heating ... has no in building backup system, due to the very high expected availability of district heating systems. Types of water heating appliance Image FEMA 63 Photograph by Dave Saville taken on 10 04 1999 in North Carolina.jpg thumb Electric tank type storage water heater US Hot water used for space heating .... This is common practice in the US, especially when warm air space heating is usually employed ... publisher Search.eb.com date accessdate 2012 02 29 ref Gravity fed system Where a space heating ... head but usually with a good Volumetric flow rate flow . In most other parts of the world, water heating ... Instant hot water dispenser Stand alone appliances for quickly heating water for DHW are known in North ... appliance known as the chip heater . A common arrangement where hot water space heating is employed ... equipment required. Appliances capable of supplying both space heating and DHW are known as combination ... they can produce it is limited by the thermodynamics of heating water from the available fuel supplies ... more details
Tidal heating also known as tidal working occurs through the tidal friction processes orbital and rotational energy are dissipated as heat in the crust of the moons and planets involved. Io moon Io , a moon of Jupiter , is the most volcanically active body in the solar system , with no impact craters surviving on its surface. This is because the tidal force of Jupiter deforms Io ref Citation title Melting of Io by Tidal Dissipation url http links.jstor.org sici?sici 0036 8075 2819790302 293 3A203 3A4383 3C892 3AMOIBTD 3E2.0.CO 3B2 8 year 1979 journal Science pages 892 894 volume 203 issue 4383 last1 Peale first1 S. J. last2 Cassen first2 P. last3 Reynolds first3 R. T. accessdate 2010 10 12 ref the orbital eccentricity eccentricity of Io s orbit a consequence of its participation in a Orbital resonance Laplace resonance causes the height of Io s tidal bulge to vary significantly by up to 100 m over the course of an orbit the friction from this tidal flexing then heats up its interior. A similar but weaker process is theorised to have melted the lower layers of the ice surrounding the rocky mantle of Jupiter s next large moon, Europa moon Europa . Saturn s moon Enceladus moon Enceladus is similarly thought to have a liquid water ocean beneath its icy crust. The cryovolcano water vapor geysers which eject material from Enceladus are thought to be powered by friction generated within this moon s shifting ice crust. References Reflist See also tidal acceleration Category Planetary science Category Tides Geophysics stub Planetary science stub zh ... more details
Infobox military unit unit name Aerodynamic and Propulsion Test Unit image Image APTU FaCET.jpg 300px caption FaCET Test in the APTU country United States branch US Air Force role Test Facility nickname APTU AEDC Aerodynamic and Propulsion Test Unit APTU is a blowdown hypersonic wind tunnel driven by a combustion air heater CAH . ref http www.arnold.af.mil news story.asp?id 123160209 ref The facility is owned by the United States Air Force and operated by Aerospace Testing Alliance . History The AEDC Aerodynamic and Propulsion Test Unit started out as a vitiated air heater VAH conducting over 275 experiments for the development of many different aerodynamic and aerothermal systems. Upgrades to the facility started in 2002 in order to provide ground test capability for supersonic and hypersonic systems up to flight speeds of Mach 8. Capabilities The facility was designed to provide ground based simulations of supersonic and hypersonic flight conditions. The combustion air heater can provide total pressures from 200 psia to 2,800 psia 13.6 atm to 190.5 atm and a total temperatures from 1,200 R to 4,700 R 667 K to 2,611 K . Five nozzles ranging from Mach 3.2 to Mach 7.1 are currently available. ref http www.arnold.af.mil shared media document AFD 080625 010.pdf ref See also Arnold Air Force Base Supersonic wind tunnel Scramjet References references External links http www.arnold.af.mil Arnold Engineering Development Center official DEFAULTSORT Aerodynamic and Propulsion Test Unit Category Wind tunnels ... more details
The term controlled aerodynamic instability phenomena was first used by Cristiano Augusto Trein ref http www.cristianotrein.com ref in the Nineteenth KKCNN Symposium on Civil Engineering ref Matsumoto, M. Trein, C. Ito, Y. Okubo, K. Matsumiya, H. Kim, G. Controlled Aerodynamic Instability Phenomena An Alternative Approach for Wind Power Generation Systems , The Nineteenth KKCNN Symposium on Civil Engineering, Japan, 2006., ref held in Kyoto Japan in 2006. The concept is based on the idea that aerodynamic instability phenomena, such as K rm n vortex street , Aeroelasticity Flutter flutter , galloping and Aeroelasticity Buffeting buffeting , can be driven into a controlled motion and be used to extract energy from the flow, becoming an alternative approach for wind power generation systems. Justification Nowadays, when a discussion is established around the theme wind power generation, what is promptly addressed is the image of a big wind turbine getting turned by the wind. However, some alternative approaches have already been proposed in the latter decades, showing that wind turbines are not the only possibility for the exploitation of the wind for power generation purposes. In 1977 Jeffery ref Jeffery, J Oscillating Aerofoil Project , Report from the Pocklington School Design Centre, West Green, Pocklington, York, England., 1977. ref experimented with an oscillating aerofoil system based on a vertically mounted pivoting wing which flapped in the wind. Farthing ref http www.econologica.org wingedmills.html ref discovered that this free flutter could automatically cease for high ..., robotist, kite engineer uses aero instabilities to gain wind power from kites. ref Controlled aerodynamic ... concerning these interactions and their dependencies, aiming the understanding of the aerodynamic phenomena ... those aerodynamic instabilities and by developing new features, it is possible to propose ways to stimulate ... Controlled Aerodynamic Instability Phenomena Category Aerodynamics Category Wind turbines ... more details
context date March 2009 Aerodynamic potential flow or panel codes are used to determine the velocity and subsequently the pressure distribution on an object. This may be a simple two dimensional object, such as a circle or wing or it may be a three dimensional vehicle. A series of sources and doublets are used to model the panels and wakes respectively. These codes may be valid at subsonic and supersonic speeds. History Early panel codes were developed in the late 1960s to early 1970s. Advanced panel codes, such as Panair developed by Boeing , were first introduced in the late 1970s, and gained popularity as computing speed increased. Over time, panel codes were replaced with higher order panel methods and subsequently CFD Computational Fluid Dynamics . However, panel codes are still used for preliminary aerodynamic analysis as the time required for an analysis run is significantly less due to a decreased number of elements. Assumptions These are the various assumptions that go into developing potential flow panel methods Inviscid math nabla 2 phi 0 math Incompressible math nabla cdot V 0 math Irrotational math nabla times V 0 math Steady math frac d dt 0 math However, the incompressible flow assumption may be removed from the potential flow derivation leaving Potential Flow inviscid, irrotational, steady math nabla 2 phi 0 math Derivation of Panel Method Solution to Potential Flow Problem From Small Disturbances math 1 M infty 2 phi xx phi yy phi zz 0 math subsonic From Divergence Theorem math iiint limits V left nabla cdot mathbf F right dV iint limits S mathbf F cdot mathbf n , dS math Let Velocity U be a twice continuously differentiable function in a region of volume V in space. This function is the stream function math phi math . Let P be a point in the volume V Let ... Domain Aerodynamic Software , A Panair Distribution Source, Ralph Carmichael http hdl.handle.net ... Methods For The Solution Of Problems In Aerodynamic Intereference , Ralph Carmichael, 1971 NASA ... more details
Wiktionarypar central heating Central heating may refer to Central heating , a heating system that distributes heat from a single source Central Heating Grand Central album , the second compilation released by Grand Central Records Central Heating 2 , the fourth compilation from Grand Central Records Central Heating Heatwave album , an album by the band Heatwave Central Heating , a song from this album Other uses Central Heating Plant Washington, D.C. , listed on the National Register of Historic Places disambig ... more details
Multiple issues unreferenced December 2009 orphan February 2009 According to the U.S. Patent & Trademark Office , electric heating pouches are medical apparatus, namely, electric heating devices for curative treatment. Citation needed date May 2010 The U.S. Food and Drug Administration FDA classifies the heating pouch as a class II medical device. Citation needed date May 2010 Heating pouches are sometimes mislabeled as heating pad s . Heating pads are, by definition, flat, whereas heating pouches are contoured or curved. Citation needed date May 2010 In order to achieve the geometric design, three uniquely made heating pads are placed within a Polyvinyl chloride PVC pouch to form a scoop like shape. Citation needed date May 2010 Heating pouches are made specially for human body joint s specifically the shoulder, elbow, hip, knee, ankle, and wrist or hand. The curvature of the pouch enables the user to completely cover these joints, whereas flat heating pads cannot conform to the curved joints. Citation needed date May 2010 DEFAULTSORT Electric Heating Pouch Category Medical equipment Medical equipment stub ... more details
image W rme bergabestation 300 kW.jpg thumb right A district heating substation in a residential neighborhood with a thermal capacity of 300 kW. Two components of the heat meter are visible the metering electronics unit on the right white blue box , and the ultrasonic flow meter in the center bronze tube . Image Waerme Schulung CRC Wn 040.jpg thumb upright A district heating substation with a thermal capacity of 700 kW. This unit isolates the water circuit of the district heating system from the customer s central heating system. A district heating substation is a component in a district heating system that connects the main network to a building s own heating system. ref www.ees.energy.lth.se fileadmin ees Publikationer 1997 1012.pdf Janusz Wollerstrand District Heating Substations ref ref http www.euroheat.org Admin Public Download.aspx?file Files 2FFiler 2FEHP Guidelines District Heating Substations.pdf EUROHEAT & POWER GUIDELINES FOR DISTRICT HEATING SUBSTATIONS , October 2008 ref ref http docs.google.com viewer?a v&q cache 3XtRsfBGX5MJ www.euroheat.org Admin Public DWSDownload.aspx 3FFile 3Dfiles Filer documents Publications Substation Guidelines Presentation.pdf site euroheat.org GUIDELINES FOR DISTRICT HEATING SUBSTATIONS&hl de&gl at&pid bl&srcid ADGEEShIZPe 0 qwgWMxmOQ DXEjHQtYICttURD4GQYFgKQUioyfDnl1GFA5MC2ME5A1oIaFjNPCfWNjHryrd9zGmN3kMu7Cc9JSNHjVYPXNOx1P0 P0 1jmNSGTf2Dt6qswci0rwqI&sig AHIEtbQYjS0T zoIE21H7syJ Zz R3Vi9Q Presentation GUIDELINES FOR DISTRICT HEATING SUBSTATIONS ref The station normally has one or more of the following parts Heat exchanger Control valve Strainer Shut off valve Actuator Heat meter Temperature controller Temperature sensor In addition, a district heating substation may also include Pump Safety valve Balance valve Manometer Non return valve References reflist DEFAULTSORT District Heating Substation Category Residential heating de W rme bergabestation ru uk ... more details
File Self heating can How it works.jpg thumb Structure of a self heating can Image Self heating can.JPG right thumb A self heating can A self heating can is an enhancement of the common food tin can can . Self heating cans have dual chambers, one surrounding the other. The inner chamber holds the food or drink, and the outer chamber houses chemicals that undergo an exothermic reaction when combined. When the user wants to heat the contents of the can, they pull a ring on the can that breaks the barrier separating the chemicals in the outer chamber. After the heat from the reaction has been absorbed by the food, the user can enjoy a hot meal or drink. Current versions of the self heating can work in much the same way, but have the chemicals in the inner chamber and the beverage surrounding it in the outer chamber. This design has the advantages of being more efficient less heat is lost to the surrounding air as well as reducing excessive heating of the product s exterior, causing possible discomfort to the user. Self heating cans offer benefits to campers and people without access to a microwave oven, stove or camp fire, but the technology is not yet common. This is because self heating cans are considerably more expensive than the conventional type, and also have problems with uneven heating of their contents. Technology The source of the heat for the self heated can is an exothermic ... as three containers. A container for the beverage surrounds a container of the heating agent separated ..., a rod pierces the membrane, allowing the water and heating agent to mix. The resulting reaction ... Container with integral module for heating or cooling the contents Patent 5461867 Bot generated title ref The heating agent and responsible reaction vary from product to product. Calcium oxide is used ... heating food packaging References refs External links http www.findarticles.com p articles mi m3301 ... Will Self Heating Coffee Be Cool? BBC News Online http news.bbc.co.uk 1 hi england 1603391.stm ... more details
The Association of Plumbing and Heating Contractors APHC is a trade association for the plumbing and heating industry in England and Wales , representing around 1500 businesses employing some 60,000 specialist engineers ranging from those employed by large companies to sole traders working in domestic properties. ref http www.competentpersonsscheme.co.uk about aphc ref The APHC represents these specialists on the Specialist Engineering Contractors Group , a member of the Strategic Forum for Construction . History The APHC started in 1925 as the National Federation of Plumbers and Domestic Engineers, focused on industrial and commercial aspects of plumbing that had previously been managed by the then Institute of Plumbers today the Chartered Institute of Plumbing and Heating Engineering CIPHE , which remained focused on education, training and technical matters. It became the National Federation of Plumbers and Domestic Heating Engineers in 1965 to reflect the increased amount of members work on heating systems. In 1972 it became an association the National Association of Plumbing, Heating and Mechanical Services Contractors. It adopted its current name in 1996. External links http www.competentpersonsscheme.co.uk default.aspx APHC website References references Construction industry in the United Kingdom DEFAULTSORT Association Of Plumbing And Heating Contractors Category Construction Category Building Category Engineering organizations business org stub ... more details
notability date March 2012 The transparent heating film , also called transparent heating plastic or heating transparent polymer film is a thin and flexible polymer film with a Optical coating conductive optical coating . Transparent heating films are able to heat up by means of 2,5 kWatt square meter at powers below 48 VDC. This allows heating with seccure AC DC electricity transformers delivering voltages which will not heart the human body. Transparent conductive polymer films may be used for heating transparent glasses. A combination with LEDFilm transparent SMD electronic for multipurpose applications, is also possible. SEE ALSO Optical coating REFERENCES references Categories Category Electrical engineering Category Electronics manufacturing Category Electronic engineering ar bn bs Printana plo a elektrotehnika bg ca Circuit impr s cs Plo n spoj da Printplade de Leiterplatte et Tr kkplaat es Circuito impreso fa fr Circuit imprim ko hi hr Tiskana plo ica id Papan sirkuit cetak is Prentplata it Circuito stampato he sw Bodi ya sakiti iliyochapishwa lt Spausdinta schema hu Nyomtatott ramk r nl Printplaat ja no Kretskort nn Kretskort pl Obw d drukowany pt Circuito impresso ro Circuit imprimat ru simple Printed circuit board sk Doska plo n ch spojov sr sh tampana plo a fi Piirilevy sv M nsterkort th tr Bask l devre kart uk vi M ch in zh ... more details
refimprove article date January 2008 Under soil heating is a method used in various sports stadiums stadia that have grass as their main surface which heats the underside of the pitch to avoid any bad weather, such as snow and ice, from building up and ultimately helps the club avoid having to postpone any matches. The first ground in England to have under soil heating installed was Goodison Park , home of Everton F.C. Everton . ref cite web title Everton firsts publisher Everton F.C. url http www.evertonfc.com history everton firsts.html accessdate 31 December 2009 ref Most Premier League English Premiership teams now have this installed in their stadia. While it is not an official requirement, it avoids any financial loss that a club might face in having to postpone any matches due to bad weather. Several teams in the United States National Football League American football located in cold weather cities also have such a system installed. In the case of American football, it is more a matter of player safety, since NFL games are never postponed on account of cold weather. In Germany a under soil heating is mandatory for 1. and 2. Fu ball Bundesliga . The first one was installed 1972 in the Olympic Stadium Munich Olympic Stadium of Munich . In the Czech Republic , despite the league having a winter break, the Gambrinus liga requires all participating teams to play on surfaces with under soil heating. ref cite web url http fotbal.idnes.cz ctyri kluby zadaji svaz vyhrivany travnik ... 06 15 ref At Old Trafford , the pitch has 18.4 miles of under soil heating There have been numerous occasions where under soil heating s effectiveness has been questioned. One notable incident happened ... with under soil heating, failed to stop their pitches being covered in thick snow this led to the matches ... heating system occurred in 1967, when a newly installed system at Lambeau Field in Green Bay, Wisconsin ... heating Category Association football terminology sport stub de Rasenheizung ... more details
Central solar heating is the provision of central heating and water heating hot water from solar energy by a system in which the water is heated centrally by arrays of solar hot water panel solar thermal collectors central solar heating plants CSHPs and distributed through district heating pipe networks or block heating systems in the case of smaller installations . For block systems, the solar collectors are typically mounted on the building roof tops. For district heating systems the collectors may instead be installed on the ground. Central solar heating can involve large scale thermal storage, scaling from diurnal storage to seasonal thermal store seasonal thermal storage . Thermal storage increase the solar fraction the ratio between solar energy gain to the total energy demand in the system for solar thermal systems. Ideally, the aim for applying seasonal storage is to store solar energy collected in the summer time to the winter month. Compared to small solar heating systems solar combisystem s , central solar heating systems have better price performance ratios due to the lower ... CSHP, Marstal, r sk ping and Rise. History of central solar heating plants Globalize date May ... has played a major role in the development of large scale solar heating. According to Dalenb ck, J O ... . Related systems Central solar heating is a sub class of large scale solar heating systems ... development Seasonal thermal store District heating Solar heating Solar cooling Solar combisystem ... 2002 06 share sun.html Solar District Heating in Europe Large Scale Solar Heating Systems for Housing ... OpenDocument European Large Scale Solar Heating Network Thermie Project ... Scale Solar Heating Network s former Homepage http www.arcon.dk uk store uk.html 17.081 m2 CSHP at r ... CSHPs in Germany Further reading Central Solar Heating Plants with Seasonal Storage A Status Report ... heating ... more details
File United States Heating Degree Day map, 1961 1990.jpg thumb United States Heating Degree Day map, 1961 1990 File United States Cooling Degree Day map, 1961 1990.jpg thumb United States Cooling Degree Day map, 1961 1990 Heating degree day HDD is a measurement designed to reflect the demand for energy needed to heat a building. It is derived from measurements of outside air temperature . The heating requirements for a given Architectural structure structure at a specific location are considered to be directly proportional to the number of HDD at that location. A similar measurement, cooling degree day CDD , reflects the amount of energy used to cool a home or business. Heating degree days are defined relative to a base temperature the outside temperature above which a building needs no heating. The most appropriate base temperature for any particular building depends on the temperature that the building ... some credit for the period of the day when the air is warm enough for heating to be unnecessary. This http ... climates maritime as well as continental throughout the year not just during a defined heating ... a rough estimate of seasonal heating requirements. In the course of a heating season, for example, the number ... , whose heating degree days for the heating season is 2,020, would require around two fifths ... an annual HDD 5000. Example of use HDD provides a simple metric for quantifying the amount of heating ... to maintain thermal comfort. Say we are given the number of heating degree days D in one year ... by Q P sub specific sub × 24× D 1000 kWh Note that as total energy consumption is in kWh and heating ... of heating and cooling required depends on several factors besides outdoor temperature How well ... Heating,ventilating, and air conditioning Weather derivatives References references External links ... degreedays calculation.html Examples of heating degree day calculations DEFAULTSORT Heating Degree Day Category Basic meteorological concepts and phenomena Category Heating da Graddag nl Graaddag ... more details
File Army.mil 2008 03 06 232636.jpg right thumb 200px Self heating field ration s for up to 18 soldiers File How it works.jpg thumb Self heating food packaging Self heating food packaging SHFP is active packaging with the ability to heat food contents without external heat sources or power. Packets typically use an exothermic reaction exothermic chemical reaction . Other types of active packaging are self cooling food packaging and radio frequency identification RFID . How is that last one a type of packaging? Packages like these are typically used by the military during operations when it is unsafe to have a fire to cook. Heating methods Commercial heat sources for self heating food packaging use an exothermic reaction between quicklime , or calcium oxide, and water, which generates 60 calories of heat per gram. Quicklime, inexpensive and readily available, is generally recognized by the FDA as safe. ref http web.archive.org web 20070812132324 www.fda.gov ora inspect ref itg itg17.html ref The by product of the reaction is calcium hydroxide. For the military s Meals Ready to Eat or the flameless ration heater , the military uses a magnesium and iron heater. Water activates the heater, which generates heat of 310 calories per gram. Hydrogen is released as a byproduct. Civilian versions are available it is rarely possible to buy packets individually from legitimate sellers. ref http www.mreinfo.com civilian mre buying civilian mres.html ref Development Current research focuses on cost reduction using reactions without odor or fumes. One heat source in development uses air activation reactions that utilize oxidation of common metals like iron or zinc. ref http asc2008.com manuscripts H HP 03.pdf Dead link date January 2012 and http www.wipo.int pctdb en wo.jsp?IA US2007075740 ... heating can References references Books, General References Yam, K. L., Encyclopedia of Packaging Technology , John Wiley & Sons, 2009, ISBN 978 0 470 08704 6 packaging DEFAULTSORT Self Heating Food Packaging ... more details
Infobox Album Name Central Heating Type Studio album Artist Heatwave band Heatwave Cover Central heating heatwave album.jpg Released 1978 Recorded 1977 1978 small at Audio International Studio, Utopia Studios, Morgan Studios & Marquee Studios, Air Studios. London , United Kingdom UK Genre Rhythm and blues R&B , Funk , Disco Music Disco Length 38 32 Label Epic Records Producer Barry Blue Last album Too Hot to Handle Heatwave album Too Hot To Handle br 1976 This album Central Heating br 1978 Next album Hot Property album Hot Property br 1979 Central Heating is the second album by the funk band Heatwave band Heatwave . Album ratings rev1 Allmusic rev1Score Rating 4 5 ref Allmusic class album id r9146 review pure url yes ref Track listing small All tracks by Rod Temperton except were noted small Put the Word Out 6 33 Send Out for Sunshine 4 28 Central Heating 4 42 Happiness Togetherness Johnnie Wilder, Jr. Johnnie Wilder 3 59 The Groove Line 4 14 Mind Blowing Decisions Johnnie Wilder, Jr. Johnnie Wilder 4 16 The Star of a Story 5 35 Party Poops 3 51 Leavin for a Dream 3 24 Personnel Johnnie Wilder, Jr. Lead & Backing Vocals, Conductor, Conga, Choir, Chorus Keith Wilder Lead Vocals & Backing Vocals Rod Temperton Organ, Synthesizer, Piano, Keyboards, Clavinet, Fender Rhodes Mario Mantese Bass Eric Johns Guitar Ernest Berger Drums, Timbales Roy Carter Piano, Guitar Bass , Guitar Rhythm , Fender Rhodes Christopher Payne Trombone Tristan Fry Percussion John Cameron Arranger, Conductor Charts class wikitable style text align center rowspan 2 Year rowspan 2 Album colspan 2 Chart positions ref name allmusic albums Cite web url Allmusic class artist id p4466 charts awards billboard albums ... 1 1978 align left Central Heating Heatwave album Central Heating 10 2 Singles class wikitable style ... &mdash 49 &mdash External links http www.discogs.com Heatwave Central Heating master 120648 Heatwave Central Heating at Discogs References Reflist Category 1978 albums Category Heatwave albums ... more details
Unreferenced date April 2010 Gloria meaning glory in Spanish language Spanish was a central heating system used in Kingdom of Castile Castile beginning in the Middle Ages . It was a direct descendant of the Ancient Rome Roman hypocaust , and due to its slow rate of combustion , it allowed people to use smaller fuel s such as hay instead of wood. Description The Gloria consisted of a Firebox architecture firebox , generally located outside in a courtyard, for example , which burned hay, and one or more ducts that ran under the floors of the rooms to be heated. The warm exhaust gases from the combustion would pass through these ducts and then be released outside through a vertical flue. The system is more efficient than a fireplace , because the rate of combustion and therefore the heat output can be regulated by restricting the airflow into the firebox. Moreover, the air required for combustion does not have to pass through the interior of the building, which reduces cold drafts. Finally, because the firebox is not open to the interior, there is no risk of filling the interior with smoke. Despite these benefits, it is not advisable to use this system today, as modern furnaces are far more efficient. The modern equivalent of the Gloria would be underfloor heating , which uses piped hot water under the floor to heat rooms, and like the Gloria, has the benefit of reducing the temperature gradients from floor to ceiling. See also Ondol , a similar system used in Korea Translation Ref es Gloria construcci n oldid 22452461 Category Heating ca Gl ria construcci es Gloria construcci n ... more details
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