HEAT TRANSFER

Specialty Definition: HEAT TRANSFER

Domain	Definition
Aerospace	The transfer or exchange of heat by radiation, conduction, or convection within a substance and between the substance and its surroundings.Radiation represents the transfer of radiant energy from one region to another by electromagnetic waves, with or without an intervening medium. Conduction, or diffusion of heat, implies the elastic impact of fluid molecules, without any net transfer of matter. Convection arises from the mixing of relatively large volumes of fluid because of the fluid motion and may be due either to local temperature inequalities (free convection) or to an applied pressure gradient (forced convection). (references)
Energy	Flow of heat energy induced by a temperature difference. Heatflow through a building envelope typically flows from a heated, or hot area to acooled, or cold area. (references)
	The flow of heat from one area to another by conduction, convection, and/or radiation. Heat flows naturally from a warmer to a cooler material or space. (references)
Source: compiled by the editor from various references; see credits.

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Specialty Definition: Heat transfer

(From Wikipedia, the free Encyclopedia)

Heat transfer or heat flow is the process whereby heat flows from regions of higher to regions of lower temperature.

The rate of heat flow depends on the mode of heat transfer and on the temperature difference across which the heat flows, as well as on the matter of the system under consideration and its geometry.

There are three types of heat flow:

Conduction carries heat through solids, gels, or still liquids by the collision of molecules.
Convection displaces heat by the motion of hot or cold fluids (gases or liquids). Essentially conduction to a flowing material.
Radiation carries heat through the emission and absorption of photons (infrared electromagnetic radiation).

The electrons of a metallic solid conduct heat through the solid. Electrons also conduct electric current through conductive solids, and the thermal and electrical conductivities of most metals have about the same ratio. A good electrical conductor, such as copper, also conducts heat well.

Weatherization slows convective heat flow in buildings. Insulation slows conductive heat flow. Reflective barriers slow radiative heat flow, and often couple directly with insulation.

For more on heat transfer, see heat.

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Heat transfer."

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Crosswords: HEAT TRANSFER

Specialty definitions using "HEAT TRANSFER": ablating material, ablating nose cone, absorber plate, Active Cooling, adiabatic wall temperature, AIR CONDITIONER, air washer, Antifreeze Solution ♦ Booster Pump, burnout ♦ CHEMICAL ENGINEER, chequers, Closed-Loop, collector box, convective self-flow, critical heat flux, critical nucleate boiling heat flux ♦ Departure from nucleate boiling, Double Wall Heat Exchanger, Drainback Systems, Draindown Systems, dry containment ♦ Expansion Tank ♦ Flat-Plate Solar Thermal/Heating Collectors, Flow Condition, fluidised bed furnace, fluidized bed furnace ♦ gas pass, gravity system ♦ heat-transfer coefficient ♦ ideal rocket, indirectly heated systems ♦ Liquid-Based Solar Heating System, Liquid-To-Air Heat Exchanger, Liquid-To-Liquid Heat Exchanger, LOW-E, Low-E Coatings & Films ♦ maximum nucleate boiling heat flux ♦ natural circulation, nondimensional number, Nusselt number ♦ peak nucleate boiling heat flux ♦ Reflective Coatings, R-Value ♦ Stanton number, Stanton's no. ♦ thermal emissivity, Thermal power, thermic copying, thermosiphon system, transfer-iron operator, TRANSFER-MACHINE OPERATOR, transition heat flux, Trickle Collector, trickle collector, trickling water collector, Tropical Rainfall Measuring Mission, Tube-In-Plate-Absorber, Tube-Type Collector ♦ U-Value ♦ vacuum gage ♦ water-trickle collector, water-trickle solar collector. (references)

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Commercial Usage: HEAT TRANSFER

Domain	Title
Books	Convective Heat Transfer (reference) Introduction to Convective Heat Transfer Analysis (reference) Physical and Computational Aspects of Convective Heat Transfer (reference) Principles of Convective Heat Transfer (Mechanical Engineering Series) (reference) Heat Transfer in Gas-Cooled Annular Channels (Experimental and Applied Heat Transfer Guide Books) (reference) (more book examples)
Source: compiled by the editor from various references; see credits.

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Photo Album: HEAT TRANSFER

Thumbnail	Description & Credit
	Testing heat transfer in different thicknesses of barkEnvironmental EducationFire WorkshopMcCall, IdahoFour Rivers Field OfficeLSRDLower Snake River District. Credit: Shelley Davis-Brunner.
Source: pictures compiled by the editor from various references; see picture credits.

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Expression: HEAT TRANSFER

Expression using "HEAT TRANSFER": overall coefficient of heat transfer. Additional references.
Source: compiled by the editor from various references; see credits.

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Frequency of Internet Keywords: HEAT TRANSFER

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Expression	Frequency per Day	Expression	Frequency per Day
heat transfer	453	used heat transfer press	9
heat transfer fluid	77	heat transfer printer	9
copper heat transfer	70	heat transfer calculation	9
heat transfer press	66	t shirt heat transfer press	8
heat transfer paper	65	heat transfer label	7
heat transfer machine	61	foil heat transfer	7
t shirt heat transfer	45	conduction heat transfer	6
heat transfer equipment	32	radiation heat transfer	6
heat transfer oil	28	heat transfer decals	5
heat transfer coefficient	27	heat transfer software	5
iron on heat transfer	23	t shirt iron on heat transfer	5
heat transfer product	23	heat transfer and thermodynamics	5
wholesale heat transfer	22	activity classroom heat transfer	5
heat transfer design	20	formula heat transfer	5
custom heat transfer	16	cement heat transfer	5
heat transfer printing	12	engineering heat transfer	4
equation heat transfer	12	catalog heat transfer	4
heat transfer material	11	heat transfer company	4
heat transfer system	11	heat transfer wildside	3
convection heat transfer	10	airwaves heat transfer	3
		behr heat transfer	3
Source: compiled by the editor from various references; see credits.

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Modern Translation: HEAT TRANSFER

Language		Translations for "HEAT TRANSFER"; alternative meanings/domain in parentheses.
Danish		varmeoverførsel ved stråling (radiative heat transfer), kølevæske (coolant, heat transfer fluid). (various references)

Dutch		warmtetransport-medium (coolant, heat transfer fluid), warmtedrager (coolant, heat transfer fluid). (various references)

French		fluide caloporteur (heat transfer fluid), échanges radiatifs (radiative heat transfer). (various references)

German		Wärmeübertragung. (various references)

Greek		μεταφορά θερμότητας με ακτινοβολία (radiative heat transfer), θερμαγωγό υγρό (coolant, heat transfer fluid). (various references)

Hungarian		hőátadás. (various references)

Italian		refrigerante (refrigerant, refrigerator), fluido refrigerante (coolant, cooling agent, cooling medium, heat transfer fluid, primary coolant, reactor coolant, refrigerant), fluido di raffreddamento (coolant, cooling agent, cooling medium, heat transfer fluid, refrigerant). (various references)

Pig Latin		eathay ansfertray

Portuguese		transfer�ncia t�rmica, transfer�ncia de calor. (various references)

Spanish		transfera de calefacción. (various references)
Source: compiled by the editor from various translation references.

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Anagrams: HEAT TRANSFER

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-e-e-f-h-n-r-r-s-t-t"
	-3 letters: anteaters, arrestant, earthstar, fatteners, ratteners, threatens.
	-4 letters: anteater, arsenate, earthset, entreats, farthest, fastener, fattener, feathers, fenestra, ferrates, fretters, hastener, heartens, hetaeras, narrates, ratafees, ratteens, rattener, refasten, retreats, seafarer, serenata, stearate, terranes, theaters, theatres, threaten, transfer, treaters.
	-5 letters: aerates, aethers, afreets, anthers, earners, earnest, earthen, eastern, entreat, errants, erratas, estreat, ethanes, fantast, farther, fathers.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.