F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/137, 322/35
F02C 1/04 (2006.01) F01K 3/00 (2006.01) F01K 25/00 (2006.01) F02C 1/10 (2006.01) F02C 6/14 (2006.01) F02C 6/16 (2006.01)
Patent
CA 1141974
ABSTRACT A method for storing excess energy produced by an electric utility during low energy demand periods, utilizing a closed system with a gaseous fluids the energy storage medium and turbine working fluid. The fluid medium is stored at low pressure in an underground cavern which is located near a commercial electric utility system. During low energy demand periods, electrical output from the utility is channeled to the subject invention for conversion to potential energy, stored in to form of pressurized fluid in a second, high pressure craven. This fluid transfer is accomplished by a compressor powered by excess electric output of the utility. During peak periods of power demand, a stream of the pressurized fluid is heated and expanded through a turbine/generator combination to generate electrical output. This electrical power is then used to supplement the utility output to meet the higher level of energy requirement arising during peak demand periods. The expanded fluid medium is subsequently returned to the low pressure storage cavern, pending recycle through the closed system. Various embodiments are disclosed illustrating use of excess electric utility output to accomplish the heating and to supply the compression energy to operate the system. -1-
340021
Oros Co.
Smart & Biggar
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