Electrical heat loss control for building perimeter employing pl

Details Electrical heat loss control for building perimeter employing pl Electrical heat loss control for building perimeter employing pl

1984-03-22

1985-09-17

Paschall, M. H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219486, 340589, 374121, 307 39, H05B 102

Patent

active

045422834

ABSTRACT:
A perimeter heat loss control system for electrical heaters and/or radiant ceiling panels around the periphery of a building has the heaters divided into zones, usually one zone for each outside wall. In a zone, a radiant heat responsive heat flow sensor faces the outside wall for the zone and generates a wall heat rate signal; a thermal sensor is positioned adjacent to one heater to generate a heat rate signal. A zone comparator uses the sensor signals to generate an error signal representative of deviation of the differential between the rate of heat flow through the zone wall and the rate of heat generation in the zone relative to a predetermined preset value. That error signal is applied to a power control to control all heaters in the zone, proportionally varying the input to the heaters until a balanced heat loss condition is realized.

REFERENCES:
patent: 3450862 (1969-06-01), Kralovec, Jr.
patent: 4274475 (1981-06-01), Rall et al.
patent: 4372690 (1983-02-01), Berman et al.

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