Calorimetric measuring apparatus
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United States of America Patent
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Aug 20, 1996
Grant Date -
N/A
app pub date -
Apr 28, 1994
filing date -
May 3, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A calorimetric measuring apparatus is provided with a decomposition vessel whose interior is configured as a reaction chamber and which can be tightly sealed, the decomposition vessel being removably arranged inside a jacket, and having at least one temperature sensor for measuring the temperature reached inside the decomposition vessel. Characteristic of the measuring apparatus is that the jacket has a measuring vessel which accommodates the decomposition vessel; at least some areas of the wall zone of this measuring vessel comprise a heat-conductive material; the inner walls of this measuring vessel are spaced from the outer walls of the decomposition vessel, thereby forming an interspace in which a gaseous intermediate medium is provided; and the measuring apparatus has at least a second temperature sensor for measuring the temperature change establishing itself in the heat-conductive wall zone of the measuring vessel. With the aid of the measuring apparatus calorimetric determinations of calorific value are possible with high precision and short measuring periods, whereby a comparatively large number of measurements can be carried out in one day.
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