スターリング機関の性能および熱効率の向上

概要

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In general, a regenerative heat exchanger (hereafter called regenerator) is equipped on Stirling engines and a performance and thermal efficiency of the engines are greatly affected by the performance of regenerator. In contrast to the general Stirling engine, on our displacer type Stirling engine for experimental use, the regenerator is not equipped and a surface around the displacer piston acts as the regenerator. Then, for the sake of increasing the heat transfer area, grooves of 3mm width and 0.5mm depth were made longitudinally and circumferentially on the surface of displacer piston. The regenerative effect of the grooves was studied and it was confirmed that the grooves made properly were effective for improving the performance of the displacer type Stirling engine.
福井工業大学の論文
2003-03-20