General Electric Company

Edward Paul Sapiro

William Hunter Boardman, Iv

Dewey Reed Bosley

A generator/motor cooling apparatus comprising a cooler for cooling gas used to cool the generator/motor, the gas flowing serially across first and second heat exchangers that are supplied with water from an ambient source; and a chiller having an evaporator and a condenser with a closed refrigerant circuit between the evaporator and condenser; wherein water supplied to the second heat exchanger is chilled in the evaporator and returned to the second heat exchanger and water from the ambient source acts as the heat sink for the condenser side of the chiller. A method for increasing the cooling efficiency of a generator/motor cooler that includes first and second heat exchangers operating in parallel, utilizing water form a common ambient source, and with gas to be cooled flowing past the first and second heat exchangers in series, the method comprising a) diverting some or all of the water exiting the second heat exchanger to a chiller where the water is chilled; and b) returning the chilled water to the second heat exchanger.

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Chesapeake, VA, United States of America

Edward Paul Sapiro