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:: Volume 43, Number 43 (7-2016) ::
Vol.43 No. 43 pp. 31-40 Back to browse issues page
The Effect of throttle valve positions on thermomechanical exergy, burned fuel exergy, exergy with heat transfer and exergy with work transfer of an SI Engine
Maryam Eslami, Sajjad Rostami , Mostafa Kiani, Barat Ghobadian
Abstract:   (1053 Views)

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.

Keywords: Exergy analysis, Throttle valve position, Ethanol, Gasoline, SI engine
Full-Text [PDF 790 kb]   (234 Downloads)    
Type of Study: Research Study | Subject: Fuel and Combustion in Internal Combustion Engines
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Eslami M, Rostami S, Kiani M, Ghobadian B. The Effect of throttle valve positions on thermomechanical exergy, burned fuel exergy, exergy with heat transfer and exergy with work transfer of an SI Engine. JER. 2016; 43 (43) :31-40
URL: http://engineresearch.ir/article-1-496-en.html
Volume 43, Number 43 (7-2016) Back to browse issues page
فصلنامه تحقیقات موتور The Journal of Engine Research
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