The heat of reactions in supercritical water is difficult to measure. Our group fabricated a new reactor to enable the measurement of this heat with extremely high accuracy. The system consisted of a single, insulated tube reactor. The reaction heat was determined by the temperature change of the flow caused by the heat. We found, however, that the heat loss of the reactor compromised the measurements accuracy. Though small, this factor was impossible to completely remove, especially when the reaction was fast or the flow was slow. To compensate, we measured the heat loss and used the measured value to correct our calculation of the reaction heat. The direct measurements of the reaction heat agreed well with the calculated values, with relative error of only around 5% up to reaction heats as large as 100 kJ/kg-water.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Determination of Heat of Reaction in Supercritical Water
Yukihiko Matsumura,
Yukihiko Matsumura
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Go Tsujimoto,
Go Tsujimoto
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Takuro Konishi
Takuro Konishi
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
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Yukihiko Matsumura
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Go Tsujimoto
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Takuro Konishi
Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
Paper No:
AJTEC2011-44073, T20094; 5 pages
Published Online:
March 1, 2011
Citation
Matsumura, Y, Tsujimoto, G, & Konishi, T. "Determination of Heat of Reaction in Supercritical Water." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T20094. ASME. https://doi.org/10.1115/AJTEC2011-44073
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