Power transformer waste heat recovery system

Details Power transformer waste heat recovery system Power transformer waste heat recovery system

1982-05-28

1985-04-23

Davis, Jr., Albert W.

Heat exchange

Regenerator

Checker brick structure

122451R, 237 121, 336 57, 336 55, 165 47, 165 39, 165 40, 16510433, F22D 100, F22D 300, F24H 304

Patent

active

045123870

ABSTRACT:
Large power transformers such as used at electrical generating plants utilize oil for cooling with the heat removed by air cooled radiators. Several air cooled radiators are removed from the transformers and the oil circulated through plate heat exchangers which provide a heat transfer path to a fluid cooling medium such as water. Flow transducers and electrical temperature sensors may be used to monitor the flow rates of the oil and water, and the temperature of the oil and water in various parts of the system. These parameters are controlled to maximize the transfer of waste heat from the transformer to the water. The heated water is then utilized to perform useful work. For example, in a power plant having package boilers, the boiler makeup water is preheated with the transformer waste heat thereby reducing the energy requirements of the system.

REFERENCES:
patent: 3212563 (1965-10-01), Schrader
patent: 3255084 (1966-06-01), Doroszlai
patent: 4240499 (1980-12-01), Kals

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