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单词 adiabatic
释义
adiabatic

Chemical Engineering
  • A thermodynamic process that takes place without heat transfer to or from an external source. When a fluid is compressed adiabatically, there is an increase in temperature of the fluid. Likewise, adiabatic cooling occurs when the pressure of the fluid is reduced without any heat exchange to the surrounding. Adiabatic expansion of a fluid occurs without any heat transfer with the surroundings. Adiabatic compression is the compression of a gas without any transfer of heat to the surroundings. It results in an increase in the temperature of the gas undergoing compression.


Geology and Earth Sciences
  • Applied to the changes in temperature, pressure, and volume in a parcel of air or liquid that occur as a consequence of the vertical movement of the fluid, and without any exchange of energy with the surrounding fluid. See also dry adiabatic lapse rate; saturated adiabatic lapse rate.


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