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

M. Creyx, E. Delacourt, C. Morin, B. Desmet and P. Peultier

Energy, 2013, vol. 49, issue C, 229-239

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.

Keywords: Ericsson engine; Joule and Ericsson cycles; Thermodynamic optimization; Engine performances; Cogeneration; Hot air engines (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:49:y:2013:i:c:p:229-239

DOI: 10.1016/j.energy.2012.10.061

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