形状記憶合金熱エンジンの出力特性 : 斜板式熱エンジンについて

概要

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In order to investigate the output power characteristics of the tilt plate heat engine using the shape memory alloy, a small heat engine model was constructed. The influence of the tilt plate angle, the heating phase angle, the heating angle, the hot water temperature, the wind velocity and the deflection of the shape memory alloy helical spring on the output power of the engine was discussed experimentally. The main results obtained are summarized as follows. (1) The maximum output power is obtained at the heating phase angle of about half of the heating angle. (2) If the hot water temperature is not high, the maximum output power is obtained at the heating angle of about 60°. (3) The maximum output power is obtained at the hot water temperature which is higher than the A_f point of the spring by about 20 K. (4) While the output power increases proportionally to the tilt plate angle, the maximum output power takes an almost constant value at the tilt plate angle of above 60°. (5) While the output power increases with increase in the wind velocity, the increasing rate of the maximum output power decreases at wind velocity above 2 m/s. (6) The maximum output power is obtained at the unit elongation of the spring of about 250%.
社団法人日本機械学会の論文
1992-02-25