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Performance of Micro CHP unit based on SI engine with quantitative - qualitative load control

The paper presents data resulting by the preliminary experimental tests performed on a micro CHP (combined heat and power) 7kWel unit. The engine load has been controlled by throttle position (quantitatively) or/and the value of air excess ratio (qualitatively). By this way the engine efficiency can be improved in the range of partial loads by reducing the exergy losses during the inlet stroke. During the tests engine has been powered with LPG fuel. The engine performance together with environmental impact has been studied in this paper.
Topic: Combustion process control in engines
Author: Grzegorz Przybyła
Co-authors: Bartłomiej Rutczyk, Łukasz Ziółkowski,