Cooling tower monitor

Details Cooling tower monitor Cooling tower monitor

1984-03-23

1985-04-02

Tanner, Harry

Refrigeration

With indicator or tester

Condition sensing

165 11R, 364551, G01K 1300

Patent

active

045079307

ABSTRACT:
A cooling tower monitor for determining the performance of a cooling tower includes temperature transmitters for determining the input water temperature, the output water temperature and the surrounding temperature of the tower. A flow transmitter measures the output flow of water and a speed transmitter determines the flow of air through the tower. A relative humidity transmitter is also utilized to measure the surrounding relative humidity. The transmitters are connected to function blocks to generate a value corresponding to the performance of the cooling tower as a function of the parameters measured. A first set of function blocks utilizes the surrounding temperature and relative humidity to calculate the wet bulb temperature of the air outside the tower. This measurement is utilized in conjunction with the input and output temperatures as well as the air flow value to calculate a nominal or available water flow rate for the tower. A standard condition tower unit and rating factor for the tower are utilized in this calculation. The available flow is then divided into the actual flow as determined by the water flow transmitter to obtain the performance value.

REFERENCES:
patent: 4252751 (1981-02-01), Shito
patent: 4325223 (1982-04-01), Cantley
patent: 4390058 (1983-06-01), Otake et al.
patent: 4474027 (1984-10-01), Azmi et al.

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