BTU Meter

Details BTU Meter BTU Meter

1979-10-29

1982-06-01

Howell, Kyle L.

Measuring and testing

Volume or rate of flow

System

G01K 1716

Patent

active

043321640

ABSTRACT:
The temperatures at the inlet and the outlet of a solar energy collector being flown through by water are detected and compared with a ramp signal to provide a pulse train in which the number of pulses represents the temperature differential. The ramp signal is produced at a repetition rate representing the water flow rate so that the tallied pulses represent the BTU's as absorbed by the collector.

REFERENCES:
patent: 3617713 (1971-11-01), Karlsson
patent: 3639737 (1972-02-01), McKee
patent: 3971252 (1976-07-01), Onoda
patent: 4224825 (1980-09-01), Feller

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