Control of heat exchanger operation

Details Control of heat exchanger operation Control of heat exchanger operation

2007-12-25

2007-12-25

Jiang, Chen Wen (Department: 3744)

Refrigeration

Automatic control

Gas-liquid contact cooler, fluid flow

C062S178000

Reexamination Certificate

active

10794866

ABSTRACT:
A method of controlling the operation of a heat exchanger with evaporative and non-evaporative sections. The method includes the following steps: providing desired values of temperature or pressure; comparing present values of temperature or pressure to the desired values of temperature and pressure; and manipulating an air flowrate to the heat exchanger and load to the evaporative heat exchanger to optimize total energy and water costs while maintaining an outlet fluid at the desired temperature or pressure.

REFERENCES:
patent: 4591988 (1986-05-01), Klima et al.
patent: 5289362 (1994-02-01), Liebl et al.
patent: 5435382 (1995-07-01), Carter
patent: 6047555 (2000-04-01), Weng
patent: 6142219 (2000-11-01), Korenic et al.
HXV Closed Circuit Hybrid Cooling Tower.

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