Heat recovery calorimeter

Details Heat recovery calorimeter Heat recovery calorimeter

1984-12-10

1986-09-30

Sever, Frank

Chemistry: analytical and immunological testing

Measurement includes temperature change of the material...

374 37, 374 38, 422 51, 422 94, 422 95, 436159, G01N 2530

Patent

active

046147217

ABSTRACT:
A catalytic calorimeter measures the heat value of a gas and includes a chamber for receiving gas and air. A catalyst within the chamber causes the combustion of the gas and air, while a first thermocouple provides a signal indicating the temperature of the gas and air prior to combustion. A second thermocouple indicates the temperature of the catalyst, which is heated by an electrical resistance heater. A first temperature controller is connected to the second thermocouple and the heater for maintaining the catalyst at a predetermined temperature. A heat sink within the chamber absorbs heat from the products of the combustion of the gas and a third thermocouple indicates the temperature of the heat sink. A Peltier effect thermoelectric cooler is provided to remove heat from the heat sink. A second temperature controller connected to the third thermocouple and the cooler maintains the heat sink at a predetermined temperature. An output device records the amount of heat supplied to the catalyst and the amount of heat removed from the heat sink.

REFERENCES:
patent: 3589184 (1971-06-01), Moore
patent: 3783684 (1974-01-01), De Livois
patent: 4329873 (1982-05-01), Maeda
patent: 4329874 (1982-05-01), Maeda
patent: 4337654 (1982-07-01), Austin
patent: 4384792 (1983-05-01), Sommers et al.

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