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Hydraulic pump driven by low‐level temperature difference
Author(s) -
Wakao N.,
Tanisho S.
Publication year - 1986
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440100407
Subject(s) - boiler feedwater pump , freon , boiler (water heating) , flash boiler , working fluid , nuclear engineering , condenser (optics) , environmental science , mechanics , mechanical engineering , materials science , engineering , petroleum engineering , surface condenser , thermodynamics , waste management , physics , steam drum , optics , light source , superheated steam
A proposal is made for a non‐electric hydraulic pump driven by the temperature difference between two low‐level heats. The pump consists of a warm‐water boiler, a condenser and a pump chamber in which a balloon is installed. A difference in vapour pressure of a working fluid, such as Freon, between the boiler and the condenser makes the balloon repeat expansion and contraction, and consequently water is pumped up from under ground to the ground, for example. Open/shut operation of the valve is performed by the balloon's expansion‐contraction. Also, no auxiliary pumps are required at the boiler and condenser.