Supercritical Stirling Cycle Heat Engine with Accumulators
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United States of America Patent
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Dec 3, 2020
app pub date -
Jun 1, 2019
filing date -
Jun 1, 2019
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Abstract
The inventor claims a heat engine that follows a modification of the Stirling thermodynamic heat engine cycle. This cycle uses supercritical argon gas to take advantage of the attractive intermolecular forces of the working fluid to assist in compressing the working fluid, reducing the input compression work and the heat output during isothermal compression, as well as reducing the heat input during isothermal expansion, and increasing the overall heat engine efficiency. This cycle utilizes accumulators to ensure the working fluid is heated and cooled isochorically, and a proximate piston-cylinder filled with ideal-gas helium is used in lieu of a regenerator during the isochoric heating and cooling. All of these modifications serve to increase the overall thermodynamic efficiency of the heat engine cycle.
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