Microwave detection of fuel flow

Details Microwave detection of fuel flow Microwave detection of fuel flow

1986-02-07

1986-12-16

Favors, Edward G.

Furnaces

With control means responsive to a sensed condition

Feed control

110232, 241 34, F23H 518

Patent

active

046288309

ABSTRACT:
A microwave transmitter irradiates each outlet pipe flow path of a coal pulverizer with a beam of electromagnetic energy at a microwave frequency. The microwave energy absorbed in each outlet pipe flow path is monitored and is proportional to the pulverized fuel flow therethrough. Knowing the fuel flow rate into the pulverizer, the fuel flow rate through each outlet pipe flow path may be determined. The portion of pulverized fuel flow exiting the pulverizer through a given pipe is determined as the ratio of microwave energy absorbed in each outlet pipe flow path to the average microwave energy absorbed in all outlet pipe flow paths of the pulverizer, multiplied by the fuel flow rate into the pulverizer divided by the number of outlet pipe flow paths.

REFERENCES:
patent: 3822828 (1974-07-01), Spitz
patent: 4518123 (1985-05-01), Tanaka et al.
patent: 4540129 (1985-09-01), Zadiraka
patent: 4552076 (1985-11-01), McCartney

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