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:: Volume 66, Issue 66 (Spring 2022 2022) ::
Vol.66 No. 66 pp. 67-84 Back to browse issues page
Utilization of Stirling engine to improve the performance and fuel consumption of an internal combustion engine by exhaust gas heat recovery
Ali Qasemian, Seyed Sajad Kashi
Abstract:   (631 Views)
About 30 to 40 percent of the total energy produced in internal combustion engines is converted into useful mechanical work at best, and the rest is transferred to the environment through exhaust gases and engine cooling systems. One effective way to overcome mentioned issue is to recover the exhaust gas heat of internal combustion engines. In the present study, in order to recover the wasted energy from the ICE exhaust gases, use of Stirling engine has been suggested. For this purpose, modeling of the Stirling engine was performed by using the second-order method. To approach operating conditions of the stirling engine to actual state, heat and working losses for each moment of the engine movement were calculated separately and added to the modeling. The modeling of the Stirling engine was performed for three operating pressures in different engine speeds, depending on the thermal energy of the internal combustion engine. The results show that, at best condition, Stirling engine produce 5/8 to 10 horsepower and 20 to 22 N.m of torque. By adding these values to the IC engine, we will see a significant increase in power and torque of the hybrid system. It is also possible to achieve a constant torque over a wide range of engine speeds in hybrid engine by using different operating conditions of stirling engine.
Article number: 6
Keywords: Heat recovery, Stirling engine, Second order analysis, Adiabatic model, Hybrid of Stirling engine and internal combustion engine
Full-Text [PDF 2744 kb]   (148 Downloads)    
Type of Study: Research Study | Subject: Hybrid and Striling Engines
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Qasemian A, Kashi S S. Utilization of Stirling engine to improve the performance and fuel consumption of an internal combustion engine by exhaust gas heat recovery. JER 2022; 66 (66) :67-84
URL: http://engineresearch.ir/article-1-754-en.html


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Volume 66, Issue 66 (Spring 2022 2022) Back to browse issues page
فصلنامه تحقیقات موتور The Journal of Engine Research
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