Measuring and testing – Volume or rate of flow – System
Patent
1977-08-08
1978-12-19
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
System
23230R, 422 51, G01K 1700
Patent
active
041300165
ABSTRACT:
The adiabatic calorimeter apparatus disclosed herein is designed for chemical hazard research, particularly the study of self-heating reactions, which can result in a runaway situation. The reaction vessel and associated components in this apparatus closely simulate the structure and operation of a typical chemical plant reactor. The reaction vessel is fitted into a metal shell and the entire unit is suspended in an insulated oven. During the exothermic reaction the adiabatic temperature rise and pressure rise is simultaneously monitored and recorded as a function of time. A first stage control system maintains the temperature of the reaction vessel in equilibrium with the reaction mix and utilizes electrical energy to compensate out the heat capacity effect of the reactor. A second stage control keeps the temperature of the oven and the reaction vessel at the same level, to insure that the reaction is taking place in an adiabatic environment.
REFERENCES:
patent: 1247998 (1917-11-01), Parr
patent: 3365944 (1968-01-01), Hoagland et al.
patent: 3667294 (1972-06-01), Schoenlaub
Clausen V. Dean
Goldstein Herbert
The Dow Chemical Company
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