Method for controlling temperature of water to be fed into water

Details Method for controlling temperature of water to be fed into water Method for controlling temperature of water to be fed into water

1984-02-10

1985-11-26

Davis, Jr., Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165900, 62183, 318318, F25B 3904

Patent

active

045549648

ABSTRACT:
A method for controlling the temperature of water to be fed into a water cooling tower in which when the driving power required to drive motors to be controlled is in excess of the power which can be derived from a frequency converter, some of the motors are driven by a constant-frequency power supply while the remaining motors are driven by the frequency converter. Therefore, the temperature of water to be fed into the water cooling tower can be continuously controlled without increasing the capacity of the frequency converter.

REFERENCES:
patent: 3959979 (1976-06-01), Kramer
patent: 4036432 (1977-07-01), George
patent: 4085594 (1978-04-01), Mayer
patent: 4474027 (1984-10-01), Azmi et al.

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