Without loss or gain of heat to a system. An adiabatic change is a change in volume and pressure of a parcel of gas without an exchange of heat between the parcel and its surroundings. In reference to a steam turbine, the adiabatic efficiency is the ratio of the work done per pound of steam, to the heat energy released and theoretically capable of transformation into mechanical work during the adiabatic expansion of a unit weight of steam.

Energy terms . 2014.

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  • Adiabatic — may refer to:*In physics,:Adiabatic invariant:*In thermodynamics,::*Adiabatic process::*Adiabatic index:*In quantum mechanics,::*Adiabatic theorem *In electronics.:*Adiabatic Logic:*Adiabatic circuits *In carbohydrate chemistry.:*Adiabatic Maps… …   Wikipedia

  • adiabatic — ADIABÁTIC, Ă, adiabatici, ce, adj. (Despre fenomene fizico chimice) produs în interiorul unui sistem închis, fără a ceda sau a primi căldură din exterior. [pr.: di a] – Din fr. adiabatique. Trimis de ana zecheru, 12.08.2002. Sursa: DEX 98 … …   Dicționar Român

  • Adiabatic — Ad i*a*bat ic, a. [Gr. ? not passable; a priv. + ? through + ? to go.] (Physics) Not giving out or receiving heat. {Ad i*a*bat ic*al*ly}, adv. [Webster 1913 Suppl.] Note: The adiabatic expansion of carbon dioxide from a compressed container… …   The Collaborative International Dictionary of English

  • adiabatic — (adj.) 1838, from Gk. adiabatos not to be passed through, from a not + dia through + batos passable, from bainein to go (see COME (Cf. come)) …   Etymology dictionary

  • adiabatic — [ad΄ē ə bat′ik, ad΄ī əbat′ik] adj. [< Gr adiabatos, not to be passed < a , not + dia, through + bainein, to go: see COME] Physics of a process that occurs without loss or gain of heat adiabatically adv …   English World dictionary

  • adiabatic — adjective Etymology: Greek adiabatos impassable, from a + diabatos passable, from diabainein to go across, from dia + bainein to go more at come Date: 1859 occurring without loss or gain of heat < adiabatic expansion of a gas > • adiabatically …   New Collegiate Dictionary

  • adiabatic — adiabatically, adv. /ad ee euh bat ik, ay duy euh /, adj. occurring without gain or loss of heat (opposed to diabatic): an adiabatic process. [1875 80; < Gk adiábat(os) incapable of being crossed (a A 6 + dia DIA + ba (s. of baínein to cross) +… …   Universalium

  • adiabatic — adjective /ædɪəˈbætɪk/ Occurring without gain or loss of heat. Talk of dynamic compression and adiabatic gradients didnt carry as much weight as the certainty of its conscious intent. Ant: diabatic …   Wiktionary

  • adiabatic — Thermally insulated or self contained (i.e., without heat entering or leaving the body). Examples of adiabatic heating and cooling when a piston moves up and down in a cylinder …   Aviation dictionary

  • adiabatic — ad•i•a•bat•ic [[t]ˌæd i əˈbæt ɪk, ˌeɪ daɪ ə [/t]] adj. thr occurring without gain or loss of heat: an adiabatic process[/ex] • Etymology: 1875–80; < Gk adiábat(os) incapable of being crossed ad i•a•bat′i•cal•ly, adv …   From formal English to slang

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