TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A · 1988 · 10 citations · 0 references
EngineeringMaterials ScienceMechanical EngineeringHeat TransferThermal AnalysisThermodynamicsEngine Heat TransferEngine ThermodynamicsThermal DesignThermal ManagementThermal Management MaterialsThermal Properties Of MaterialsMaximum OutputMaximum Power OutputOutput CharacteristicsPower OutputPower Output CapabilityRotational Speed EffectsShape Memory EffectsShape-memory Alloys
In order to develop the shape memory alloy engine, basic output power characteristics of a twin crank heat engine are investigated. As a shape memory alloy, TiNi alloy wire with outer diameter 0.75 mm is used. The material is heat-treated to memorize the shape of a helix. The results are summarized as follows. (1) The output power of the engine increases with hot water temperature. Rotational speed where the output power is maximized shifts toward higher speed. (2) The maximum output power increases with hot water temperature. The increasing rate of the power decreases above a certain hot water temperature. (3) The output power increases as deformation of shape memory alloy helix large.