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Energetic optimization of the performances of a hot air engine for micro-CHP systems working with a Joule or an Ericsson cycle

Abstract : The micro combined heat and electrical power systems (micro-CHP) with hot air engines are well adapted for solid biomass upgrading, in particular, the Ericsson engines working with an open cycle and an external combustion. This paper presents a model of an Ericsson engine with a compression and an expansion cylinder which allows a thermodynamic optimization of the engine performances in a global approach. A sensitive analysis on the influent parameters is carried out in order to determine the optimal working conditions of the engine: temperature and pressure range, expansion cycle shape with a late intake valve closing or an early exhaust valve closing, heat transfers through the wall of the cylinders. This study, focused on thermodynamic aspects, is a first step in the design of an Ericsson engine
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Submitted on : Tuesday, January 18, 2022 - 11:14:27 AM
Last modification on : Wednesday, March 23, 2022 - 11:40:01 AM

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Marie Creyx, Eric Delacourt, Céline Morin, Bernard Desmet, Philippe Peultier. Energetic optimization of the performances of a hot air engine for micro-CHP systems working with a Joule or an Ericsson cycle. Energy, Elsevier, 2013, 49 (1), pp. 229-239. ⟨10.1016/j.energy.2012.10.061⟩. ⟨hal-03531364⟩

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