working substance


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working substance

n.
A substance, such as a fluid, used to effect a thermodynamic or other change in a system.

working substance

or

working fluid

n
(Mechanical Engineering) the fluid, esp water, steam, or compressed air, that operates an engine, refrigerator, etc
References in periodicals archive ?
The actor admitted he was a "very hard working substance abuser" when Cameron, 37 -- his son with ex-wife Diandra -- was growing up and he believes this along with "Cameron's own genetic issues, ADHD, and dyslexia", contributed to his incarceration for drug possession.
All these operations must be carried out with the maximal possible cargo of working substance.
Section Titles: Food refrigeration industry and current challenges from the environment to new technologies; Research and development programmes of the European Community in the field of agro-food industry, with special emphasis on refrigeration; CFC Alternatives, Refrigeration Systems and Heat Pumps; Natural Working Substances, Efficiency and Optimisation; Heat Transfer during Food Refrigeration; Innovative Systems for Refrigerated Processing of Foods; New and Improved Methods for Processing and Storage; Food Shelf-Life, Safety and Quality; Cold Chain: Analyses, Equipment and Control.