THERMAL SCIENCE

International Scientific Journal

Rasool Fatehi Ghahfarokhi

,

Shahram Khalilarya

,

Rahim Ebrahimi

ENERGY AND EXERGY ANALYSES OF HOMOGENEOUS CHARGE COMPRESSIN IGNITION (HCCI) ENGINE

ABSTRACT
In the present investigation, a single-cylinder, four-stroke cycle, TD43 engine has been used to evaluate the first and second laws of thermodynamics terms. To this aim, the first law analysis is done by using a thermo-kinetic model. The results show a good agreement with the experimental data. Also for the second law analysis, a developed in house computational code is applied. Behaviors of the results have a good accordance with the literature. The result show that an increase in the inlet charge temperature causes the maximum pressure, indicated work availability and entropy generation per cycle be reduced and the in-cylinder temperature, heat loss availability and total availability be increased. Also the results show that an increase in the engine speed causes the total availability be increased and the heat loss availability be decreased. When the engine speed increases, reduction in the duration of cycle evolution causes the reduction of heat transfer.
KEYWORDS
availability, exergy, HCCI engine, irreversibility
PAPER SUBMITTED: 2012-01-05
PAPER REVISED: 2012-10-12
PAPER ACCEPTED: 2012-10-20
DOI REFERENCE: https://doi.org/10.2298/TSCI120105217F
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 1, PAGES [107 - 117]
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Energy and exergy analyses of homogeneous charge compressin ignition (HCCI) engine

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