Energy and exergy analyses of homogeneous charge compressin ignition (HCCI) engine

Thermal Science

关键词: availability;    exergy;    HCCI engine;    irreversibility;   

DOI  :  10.2298/TSCI120105217F

来源: DOAJ

【 摘 要 】

In the present investigation, a single-cylinder, four-stroke cycle, TD43engine has been used to evaluate the first and second laws of thermodynamicsterms. To this aim, the first law analysis is done by using a thermo-kineticmodel. The results show a good agreement with the experimental data. Also forthe second law analysis, a developed in house computational code is applied.Behaviors of the results have a good accordance with the literature. Theresult show that an increase in the inlet charge temperature causes themaximum pressure, indicated work availability and entropy generation percycle be reduced and the in-cylinder temperature, heat loss availability andtotal availability be increased. Also the results show that an increase inthe engine speed causes the total availability be increased and the heat lossavailability be decreased. When the engine speed increases, reduction in theduration of cycle evolution causes the reduction of heat transfer.

【 授权许可】

Unknown