Boots – shoes – and leggings
Patent
1977-05-09
1978-02-14
Botz, Eugene G.
Boots, shoes, and leggings
364105, 73112, 122448R, 364108, G01L 326
Patent
active
040743608
ABSTRACT:
Monitoring system for a once-through steam generator for determining deviations between the amount of heat absorbed by the water and the steam of the generator and the amount of heat given off by a firing system for the generator during operating conditions that are not steady-state, as compared to steady-state operation, includes a first computing circuit responsive to a signal corresponding at least to an amount of fuel for determining a value approximately proportional to the amount of heat given off by the fuel, a second computing circuit responsive to a signal corresponding at least to an amount of feedwater for determining a value approximately proportional to the amount of heat absorbed by the water and the steam, a comparison circuit having inputs connected to respective outputs of the first and second computing circuits, a correction circuit connected between the output of one of the computing circuits and the respective input of the comparison circuit, the correction circuit including a correction member having an output variable only during an operating condition of the steam generator that is not steady-state, the variable output having an effect upon the value of the output of the one computer circuit that is fed to the respective input of the comparison circuit so that, during steady-state operation of the steam generator, the values of the outputs of the computer circuits to the inputs of the comparison circuit are returned as values representing substantially equal amounts of heat for heat given up by the fired fuel and for heat absorbed by the water and the steam.
REFERENCES:
patent: 2596030 (1952-05-01), Junkins
Stadie Lothar
Wittchow Eberhard
Botz Eugene G.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
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