OS7-09 高温ガス炉用再生熱交換器の開発(OS7 高温・高效率・発電・エネルギー貯蔵技術)

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This paper describes a feasibility study of the Recuperator with fine off-set plate fin in High-temperature gas-cooled reactor plant. This fin is made by pressing process. If the fin pitch is too tight.it is possible to have some cracks in pressed fin plate. And the lower limit size of the fin pitch is about 1.2mm. The heat exchange and presseure loss characteristics in fine off-set fin plate are estimated with experimental equations. For the compactness of Recuperator, required heat exchanger density is more than 24MW/m^3, and required total core pressure loss is less than 100kPa. When thickness 0.2mm plate is pressed by a die with 1.2mm fin height, measured fin height is from 1.0mm to 1.2mm. If fin height is 1.0mm, total core pressure loss might be more than 100kPa. It is important to find proper pressing condition and keep fin height for getting higher heat exchanger characteristics and lower total core pressure loss.
一般社団法人日本機械学会の論文
2005-06-28