heat engine
21Heat rays — Heat Heat (h[=e]t), n. [OE. hete, h[ae]te, AS. h[=ae]tu, h[=ae]to, fr. h[=a]t hot; akin to OHG. heizi heat, Dan. hede, Sw. hetta. See {Hot}.] 1. A force in nature which is recognized in various effects, but especially in the phenomena of fusion… …
22Heat weight — Heat Heat (h[=e]t), n. [OE. hete, h[ae]te, AS. h[=ae]tu, h[=ae]to, fr. h[=a]t hot; akin to OHG. heizi heat, Dan. hede, Sw. hetta. See {Hot}.] 1. A force in nature which is recognized in various effects, but especially in the phenomena of fusion… …
23Engine — This article is about a machine to convert energy into useful mechanical motion. For other uses of engine, see Engine (disambiguation). For other uses of motor, see Motor (disambiguation). A V6 internal combustion engine from a Mercedes car An… …
24Heat pump — A heat pump is a machine or device that moves heat from one location (the source ) to another location (the sink or heat sink ), using work. Most heat pump technology moves heat from a low temperature heat source to a higher temperature heat sink …
25Engine (disambiguation) — An engine is a device that converts potential energy into mechanical work. Engine may also refer to:In thermodynamics: * Heat engine, a physical or theoretical device that converts thermal energy to mechanical output * Reciprocating engine, a… …
26Heat — In physics, heat, symbolized by Q , is energy transferred from one body or system to another due to a difference in temperature. [cite book|author= Daintith, John |title=Oxford Dictionary of Physics|publisher=Oxford University… …
27Heat capacity — Thermodynamics …
28Heat pump and refrigeration cycle — Thermodynamic heat pump and refrigeration cycles are the models for heat pumps and refrigerators. The difference between a heat pump and a normal air conditioner is that a heat pump can be used to heat a home as well as cool it. Even though the… …
29heat — I (New American Roget s College Thesaurus) I n. high temperature (see heat); passion, rage, vehemence; rut, mating period. See sex, excitement. Ant., cold. II Quality of warmth Nouns 1. heat, caloric; warmth, ardor, fervor, fervency; incalescence …
30heat — n. & v. n. 1 a the condition of being hot. b the sensation or perception of this. c high temperature of the body. 2 Physics a a form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction,… …
