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by: X.R. Li, J.H. Sun, H. Koseki, K. Hasegawa
Amazon.com's Price: $10.95 Prices subject to change.
Binding: Digital
Format: HTML
Label: Elsevier
Manufacturer: Elsevier
Publication Date: April 11, 2005
Publisher: Elsevier
Studio: Elsevier
Editorial Review:
Product Description:
This digital document is a journal article from Journal of Hazardous Materials, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
In order to clarify the reason for the most hazardous explosion in the history of the Japanese nuclear power development by a radioactive salt disposal in asphalt, an adiabatic process was developed using a Dewar vessel to minimize the temperature difference between the reactants and the surroundings. By this means, the heat evolution from a reaction which is readily lost can be detected at a lower temperature imitating the accidental condition. A series of ambient temperature-tracking Dewar experiments on asphalt salt mixtures were conducted under different initial ambient temperatures, such as 230, 210, 190, and 170^oC, respectively. As a result, it was observed that from 190^oC the sample's temperature rose until a runaway reaction occurred. The minimum onset temperature for the runaway reaction of the asphalt salt mixture was determined to be 190^oC, which is close to the initial temperature of approximately 180^oC, the same temperature as the real accident. This implies that at near this operational temperature, initial faint chemical reactions may occur and lead to further rapid reactions if heat is accumulated at this stage.
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![: Experimental determination of the minimum onset temperature of runaway reaction from a radioactive salt disposal in asphalt [An article from: Journal of Hazardous Materials]](http://ecx.images-amazon.com/images/I/512W9E5PV5L._SL160_.jpg)