スタ-リング機関の研究-2-

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In the 1st report, the theoretical comparison of performance of various types of the Stirling engines and experimental work on the single acting L-type Stirling engine with atmospheric air as a working fluid were reported. From the 1st report, following results were obtained; 1) by the theoretical comparison, the output is decreased exponentially when dead volume ratio "a" is increased and the Inverted T type engine shows the best performance when "a" has same value for each type, 2) by the experimental results, regenerator material sizes (three kinds of diameter of steel balls were used) and the phase angle affect very much on the output performance of the engine. In this report, with the Inverted T type Stirling engine as shown in Fig. 1, the effects of the temperature of the working fluid in the expansion cylinder, various types of the regenerator material, kinds of the working fluid and the size and the number of piston rings on the output of the engine were investigated experimentally. Main results from this study are as follows; 1) fluid loss caused by reciprocating flow of the working fluid between the hot cylinder and the cold cylinder is proportional to the molecular weight of the working fluid and to the n-th power of the engine speed, 2) remarkable improvement in the engine output is obtained by use of thin piston rings (the thickness×height=1×3mm, the number of rings=15) instead of thick piston rings (6×7mm, 4) .
公益社団法人日本マリンエンジニアリング学会の論文

スタ-リング機関の研究-2-

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