Thermal measuring and testing – Calorimetry
Patent
1988-06-30
1990-05-15
Yasich, Daniel M.
Thermal measuring and testing
Calorimetry
165 32, 422 51, G01K 1706, G01N 2544
Patent
active
049253158
ABSTRACT:
Colorimetric apparatus which includes a water tank, a container in the tank, a pressure vessel in the container, and a pump. The apparatus is worked in three phases. In the first phase the water in the tank is mixed and brought to a desired temperature. In the second phase water is pumped from the tank, through a jacket which surrounds the pressure vessel, and back to the tank, to bring the pressure vessel to the tank temperature. After a sample of material is combusted in an oxygen atmosphere in the pressure vessel, the third phase takes place. Water is circulated in a closed path which includes the jacket and the temperature of this water is monitored. The variation of this temperature is used to calculate the colorific value of the substance.
REFERENCES:
patent: 550943 (1895-12-01), Carpenter
patent: 4616938 (1986-10-01), Bonnard
Automatically Controlled Isothermal-Adiabatic Colorimeter, L. A. Hiller, Jr. et al., Review of Scientific Instruments, 3/1962, vol. 33, No. 3, pp. 323-330, 374/33.
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