نویسندگان
1 دانشگاه شهرکرد
2 دانشگاه شهید چمران اهواز
3 دانشگاه تربیت مدرس
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The aim of the present study was to examine the effect of throttle valve opening positions on the analysis of MVH 418 engine exergy using ethanol-gasoline mixtures ( ، ، ، and ). In so doing, the definitions dealing with exergy and pertinent exergy equations as well as their applications for closed systems were provided. The results of this study showed that the largest share of the irreversibility in the engine was combustion process. In addition, the results showed thermomechanical exergy, burned fuel exergy, exergy with heat transfer and exergy with work transfer, for ، and fuels in full throttle valve opening were higher compared to the 25%, 50%, and 75% throttle valve opening positions. Furthermore, it was found that the efficiency of thermodynamic second law in 25%, 50%, and 75% throttle valve opening positions were reduced for 18.7%, 29%, 60.6%, for 21.5%, 32.7%, 61.5%, for 23%, 35.4%, 62.5%, for 22.8%, 35.5%, 63.6%, and for fuel 27%, 40%, 65% respectively compared to 100% position.
کلیدواژهها [English]
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