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working fluid

noun, Mechanics
a liquid or gaseous working substance.
Origin of working fluid
1900-05 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for working fluid
  • To protect the turbines, you need a heat exchanger to heat the clean working fluid near or at the surface.
  • Heat pumps use the condensation-evaporation cycle of a working fluid to move heat from one place to another.
  • Solar air heating systems use air as the working fluid for absorbing and transferring solar energy.
  • The working fluid remains in a closed system and circulates continuously.
  • Binary cycle plants use the heat from the hot water to boil a working fluid, usually an organic compound with a low boiling point.
  • Work on improved fins is motivated by the fact that thermal resistance is higher on the air side than the working fluid side.
British Dictionary definitions for working fluid

working substance

the fluid, esp water, steam, or compressed air, that operates an engine, refrigerator, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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