Investigation of Thermal Properties of Na_2HPO_4 Hydrate Slurries for Evaluating Their Use as a Coolant in Absorption Chillers
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概要
- 論文の詳細を見る
The thermal characteristics of inorganic disodium hydrogen phosphate dodecahydrate (Na2HPO4·12H2O) slurries in a water/ethylene glycol mixture were investigated in an attempt to reduce the size of absorbers in absorption chillers. In order to find the optimal concentration of Na2HPO4·12H2O and the optimal weight ratio of ethylene glycol to the mixture for cooling the absorber, solubility, phase change temperature, and latent heat were measured. The obtained results indicated that the hydrate slurry has an appropriate phase change temperature and sufficient concentration at the working temperature of the absorber when the hydrate concentration and the weight ratio of ethylene glycol to the mixture are set to 50 wt% and 0.4, respectively. Under this condition, the particle characteristics of the slurries were also measured. The particle size was found to be rather small, and it increased gradually. Thus, inorganic Na2HPO4·12H2O can be used as a cooling medium of the absorber in an absorption chiller.
- 社団法人 化学工学会の論文
- 2010-03-01
著者
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Usui Hiromoto
Department of Chemical Science and Engineering, Kobe University
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Suzuki Hiroshi
Department of Engineering and Applied Science, Faculty of Science and Technology, Sophia University
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KOMODA Yoshiyuki
Department of Chemical Science and Engineering, Kobe University
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KISHIMOTO Takashi
Department of Molecular Pathology, Chiba University Graduate School of Medicine
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薄井 洋基
神戸大学
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Usui Hiromoto
Dep. Of Chemical Sci. And Engineering Kobe Univ.
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Usui H
Yamaguchi Univ. Ube Jpn
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薄井 洋基
神戸大
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薄井 洋基
Dep. Of Chemical Sci. And Engineering Kobe Univ.
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Suzuki Hiroshi
Department Of Allergy And Immunology National Research Institute For Child Health & Development
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Kishimoto Takashi
Department Of Chemical Science And Engineering Kobe University
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Usui Hiromoto
Department Of Applied Chemistry And Chemical Engineering Yamaguchi University
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Komoda Yoshiyuki
Department Of Chemical Science And Engineering Kobe University
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Komoda Yoshiyuki
Department Of Chemical Science And Engineering Graduate School Of Engineering Science Osaka Universi
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Suzuki Hiroshi
Department Of Chemical Science And Engineering Kobe University
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