Thermal comfort controller

Details Thermal comfort controller Thermal comfort controller

1996-06-12

1998-04-14

Wayner, William E.

Refrigeration

Automatic control

Humidity sensor

105223, 236 44R, F25B 4900, B01F 302

Patent

active

057379343

ABSTRACT:
A controller for a climate control system has a relative humidity sensor as well as a dry-bulb temperature sensor within the enclosure. The humidity value is used in conjunction with the dry-bulb temperature to generate an apparent temperature error signal which is a function of both the dry-bulb temperature and the relative humidity values. This permits robust control of both enclosure temperature and enclosure moisture content without abnormal cycling of the climate control system. Instead of using a sensor which directly measures the apparent temperature, the apparent temperature can be synthesized from the relative humidity and dry-bulb temperature within the enclosure. Alternately, the sensed and set point apparent temperature values can be synthesized from any two thermodynamic properties of the moist air within the enclosure.

REFERENCES:
patent: 4873649 (1989-10-01), Grald et al.
patent: 5346129 (1994-09-01), Shah et al.

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