Temperature and humidity control apparatus and temperature and h

Details Temperature and humidity control apparatus and temperature and h Temperature and humidity control apparatus and temperature and h

1995-08-29

1999-11-16

Ford, John K.

Heat exchange

With timer, programmer, time delay, or condition responsive...

Having heating and cooling capability

236 44C, 165229, 165230, 165224, 62 90, F25B 2900

Patent

active

059840021

ABSTRACT:
A temperature and humidity control apparatus includes a humidity control section for controlling humidity when a flow rate of a low temperature fluid in a cooling dehumidifier composed of a heat exchanger is determined; a heater control section for controlling temperature when a flow rate of a high temperature fluid in a heater; and a predicting device for predicting an amount of temperature change caused by an operation of the cooling dehumidifier. The amount of predicted temperature change is canceled when the flow rate of the high temperature fluid in the heater is determined in the heater control section, and the flow rate of the high temperature fluid in the heater is determined so that the setting temperature can be realized.

REFERENCES:
patent: 4750545 (1988-06-01), Hile et al.
patent: 4813474 (1989-03-01), Umezu
patent: 4932588 (1990-06-01), Fedter et al.
Shekar et al., "Dynamic Study of a Chill Water Cooling and Dehumidifying Coil", Paper No. 2141, Ashrae Annual Meeting, Kansas City, MO, Jun. 28-Jul. 1, 1970, pp. 36-51.
Kano, H. "Discrete System Approximate Model of the Distribution Constant System"; Measurement and Control, vol. 19-11, 1980; pp. 1044-1050.

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