ピンフィン群熱交換器を用いるスターリングエンジンの研究(熱工学,内燃機関,動力など)

概要

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The structure and numerically predicted results of a new Stirling engine with a circular disk heat exchanger consisting of pin-fin arrays are presented. Pin-fin arrays are carved into the circular heat exchanger disk's face. An annular cover plate is attached to these tips. A cooler of similar shape is located. So-called "α", "β" and "γ" configurations are capable in present engine. Numerical prediction of power employing second-order approximation method is carried out in so-called "β" configuration engine case. The fluid resistances of many parts are regarded and some mechanical friction losses are regarded. The predicted engine output becomes 1kW with the temperature of 773 and 298 [K] on the heating side and cooling side, respectively. In conclusion, the Stirling engine described here is suitable for biomass and solar use because its heater shape is circular and has unique feature that it doesn't need any heat exchanger pipe.
社団法人日本機械学会の論文
2005-01-25