Visual Journal of Technical and Vocational Education

Visual Journal of Technical and Vocational Education

Experimental Investigation of Waste Energy Recovery of Exhaust gases of an Internal Combustion Engine for Cooling Production Using the Combined Cycle of the Stirling Engine

Document Type : Original Article

Authors
1 Department of Mechanical Engineering, National University of Skills (NUS), Tehran, Iran
2 Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.
Abstract
This research explored the utilization of the combined cycle of the Stirling Gamma engine and internal combustion to recover waste energy from exhaust gases in internal combustion engines. Integrating the Stirling Gamma engine into the exhaust gas path aimed to generate cooling and reduce the reliance on the engine's output power for the air conditioning system, ultimately enhancing engine efficiency. The study demonstrated that the kinetic energy present in the exhaust gases resulted in power dissipation ranging from 10 to 77 kW. By incorporating the heating component of the Stirling engine in the exhaust gas path, it became feasible to recover this wasted heat and employ it for cooling purposes. Optimal operating conditions were achieved when the hot source fluid was at a pressure of 8 bar, and the average pressure of the cold source was 1 bar, leading to the attainment of the lowest cooling temperature. Specifically, the temperature of the hot source reached 580 degrees Celsius, while the temperature of the cold part was approximately -16 degrees Celsius.
Keywords
Subjects

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  • Receive Date 30 August 2024
  • Revise Date 05 October 2024
  • Accept Date 20 October 2024