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熱交換器要素の高性能化に関する実験的研究 ネツ コウカンキ ヨウソ ノ コウセイノウカ ニ カンスル ジッケンテキ ケンキュウ Experimental Study on High Performance Heat Exchanger Element 60243052 0000-0002-4985-6497 Inaoka, Kyoji 稲岡, 恭二 イナオカ, キョウジ 千田, 衞 センダ, マモル Senda, Mamoru open access 同志社大学エネルギー変換研究センター Research Center for Energy Conversion System of Doshisha University 571.7 Plate-fin heat exchanger Spring fin Pressure loss Thermal efficiency Unsteady heat exchange experiment Dynamic heat exchanger This paper reports the experimental outcomes about the developing of the high performance heat exchanger element at the heat transfer analysis group of Doshisha University. At first, heat exchange experiment has been done in the case when the spring fin has been inserted as extended heat exchange surface into the heat exchange channel. Within the experimental ranges studied, the small diameter spring achieves the largest heat exchange performance with the smallest pressure loss penalty. Especially, an optimum spring pitch may exist at the p/d value less than 10. Such a desirable spring fin shows large heat exchange performance than inner fin and louvered fin elements. Secondly, an experimental set-up based on the unsteady method that can quickly evaluate the heat transfer performance has been explained. Thirdly, new idea of dynamic heat exchanger unit based on an impinging jet has been introduced. 同志社大学エネルギー変換研究センター Research Center for Energy Conversion System of Doshisha University 2004-07-17 jpn research report VoR https://doi.org/10.14988/re.2017.0000015822 https://doshisha.repo.nii.ac.jp/records/213 10.14988/re.2017.0000015822 研究成果報告書(2003年度) 51 56 https://doshisha.repo.nii.ac.jp/record/213/files/r004000120011.pdf application/pdf 149.3 kB 2010-11-25 2004-07-17