年次大会
Online ISSN : 2424-2667
ISSN-L : 2424-2667
セッションID: S201013
会議情報
S201013 再生器効率を考慮したスターリングエンジンの熱力学的モデル([S201-01]技術教育・工学教育(1))
加藤 義隆嶋田 不美生
著者情報
会議録・要旨集 フリー

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抄録
The method to evaluate the effect of regenerator efficiency on an indicated work of low temperature differential Stirling engine is proposed. The method enables to estimate the ensemble averaged temperatures and temperatures at the outlet of the regenerator in both hot side and cold side of displacer chamber. The estimation requires assuming the surface temperatures of both sides heat exchanger, the ratio between the difference between regenerator outlet temperature and heat exchanger temperature and the difference between ensemble averaged temperature and regenerator outlet temperature, and regenerator efficiency. The abovementioned ratio caused by three temperatures can estimate by two-dimensional steady-state CFD, and is about 0.3 in case of conventional low temperature differential Stirling engine. Obtained ensemble averaged temperatures will cause an indicated work by isothermal model calculation, and regenerator efficiency will affect on the calculation result. Although the empirical method to estimate regenerator efficiency has been proposed, much inexpensive method for engineering education or hobby should be proposed as next step.
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© 2013 一般社団法人 日本機械学会
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