Temperature/humidity controller for use in an air conditioner an

Details Temperature/humidity controller for use in an air conditioner an Temperature/humidity controller for use in an air conditioner an

1999-03-23

2000-06-27

Ford, John K.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

165206, 165224, 165228, 165229, 165230, 236 44C, 621766, 621764, 62173, 62 90, 62 91, 62 92, F25B 2900, F24F 3044, F24F 314, F24F 1102

Patent

active

060794836

ABSTRACT:
In a main controller for use in an air conditioner for controlling temperature/humidity of an intaken outside air, a controlling line setter (18) sets each of control lines (J.sub.1 -J.sub.5) on a psychrometric chart table (13), in which an aimed temperature/humidity line (Lo) is formed by connecting an upper limit state point (Ps) and a lower limit state point (Pw) of condition air from each of the outside air state points (G.sub.1 -G.sub.5) to the aimed temperature/humidity line (Lo). The controlling line (J.sub.1 -J.sub.5) is formed by connecting necessary lines selected from a main heating line (H.sub.L) showing the heating operation of a main heater (H), an adiabatic humidifying line (W.sub.L) showing the humidifying operation of an adiabatic humidifying device (W), a cooling line (C.sub.L) showing the cooling operation of a cooler (C) and an auxiliary heating line (RH.sub.L) showing the heating operation of the auxiliary heater (RH), and the end point temperature for each of the lines is set as the aimed exit temperature for each of the temperature/humidity adjusters (4, 4) and each of the temperature/humidity adjusters (4--4) is individually put to feedback control. Temperature/humidity control can be conducted accurately and at a good response, and energy can be saved and the running cost can be reduced.

REFERENCES:
patent: 3444921 (1969-05-01), Carapico, Jr.
patent: 3478817 (1969-11-01), Shaw
patent: 4542851 (1985-09-01), Itou
patent: 4616777 (1986-10-01), Fisher et al.
patent: 4627568 (1986-12-01), Lortie et al.
patent: 4750545 (1988-06-01), Hile et al.
patent: 5632333 (1997-05-01), Imamura et al.
patent: 5984002 (1999-11-01), Kido et al.

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