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Report No.
 - 

Measurement of heat generation from simulated bituminized product

not registered ; not registered

The fire and explosion incident occurred at Bituminization Demonstration Facility of PNC Tokai Works on March 11, 1997. In order to ascertain the cause of incident, the investigation has been pushed forward. For the investigation, we prepared simulated bituminized product for measurement of heat generation in low temperature region less than 200 $$^{circ}$$C. We used calvet Calorimeter MS80 for the heat generation measurement. Result of measurement, We were able to catch the feeble heat generation from bituminized product. The maximum calorific value that was able to detect it in isothermal measurement was approximately 1 mW /g in 160 $$^{circ}$$C. It was approximately 2 mW /g in 200 $$^{circ}$$C. And, as the another measurement, the measurement condition went heat rate by 0.01 $$^{circ}$$C/minute, the highest temperature 190 $$^{circ}$$C. As a result, the maximum generation of heat value that was able to detect it was approximately 0.5 mW /g. I changed simulated bituminized products and measured these. A difference of condition is salt particle size, salt content rate (45%, 60%), addition of the simulated precipitate. But there was not a difference in the generation of heat characteristic detected.

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