Selective heating and cooling energy meter
AssigneeWilgood Corporation
InventorMurray F. Feller
Life of this patent
Estimating the term…
Abstract
The disclosed apparatus includes separate "heat" and "cool" registers and selective switching means that connects the output of a thermal energy computer to one register or the other in accordance with use of a room heat-exchanger to produce heating or cooling. The switching means also interchanges the connections of inlet and outlet fluid temperature sensors in the computer corresponding to heating or cooling operation of the system. The temperature sensors control the switching means for automatic selective operation. The flow meter is in the outlet of the room heat-exchanger, to undergo a minimized range of temperatures under all conditions, and the computer provides correction for temperature-induced error of the flow meter.
Claims7
Apparatus for metering the heating energy and the cooling energy in fluid supplied by heating and cooling equipment from time to time to a heat exchanger, including
- a heating register and a cooling register,
- common monitoring means including (a) a first fluid temperature sensor for providing output that represents the temperature of the fluid supplied to the heating and cooling equipment;
- (b) a second fluid temperature sensor for providing output that represents the temperature of the fluid supplied to the heat exchanger;
- (c) flow-metering means for providing output that represents the quantity of fluid supplied to the heat-exchanger;
- and (d) means for deriving the product of the output of said flow-metering means and the difference between the outputs of said fluid temperature sensors, and
- output switching means for delivering the output of said common monitoring means selectively to said heating register and said cooling register.
Dependencies are inferred from the claim text.