Stirling Motor

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Practice Renderization. Courtesy engine by Thomas Zann. The Stirling engine was invented in 1816 by Scottish minister Robert Stirling who conceived it as a first motor designed to compete with the steam engine. A Stirling engine is a heat engine operating through cyclic compression and expansion of air or another gas, known as the working fluid, at different temperatures resulting in a net conversion of thermal energy to mechanical energy. More specifically, a closed-loop regenerative thermal with a permanent gaseous working fluid where the closed loop is defined as a thermodynamic system in which the fluid is permanently contained and regenerative describes the use of a specific heat exchange and thermal storage, known as the regenerator. The inclusion of a regenerator is what distinguishes Stirling engines from other closed-loop engines. Source: Wikipedia