Energy, Exergy, Economic and Environmental (4E) Analysis of a Heavy-Duty Diesel Engine WHR System

Document Type : Original Article

Authors

1 MSc, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran.

2 Assistant Professor, Department of Mechanical Engineering, Payam Noor University, Tehran, Iran.

3 Associate Professor, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran.

4 Assistant Professor, Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran.

10.48301/kssa.2023.382182.2421

Abstract

In the present investigation, the energy, exergy, economic and environmental (4E) characteristics of a waste heat recovery (WHR) system including a dual-loop Organic Rankine Cycle (ORC) and a heavy-duty diesel was investigated. The proposed system recovers the available waste heat of the engine exhaust gas, intake air, and the coolant. Central composite design (CCD) which is a standard technique of response surface methodology (RSM) was employed for the design of experiments (DoE). Parametric study of the output responses to the effective input parameters was performed. The results showed that increasing the amount of the engine variables led to a significant increase in power production and exergy destruction rate of the system and vice versa. The minimum amount of payback period (5.57 years) was observed in the high values of the engine parameters. The maximum output power of the WHR system was 330 kW, which was equal to 33% of the diesel engine brake power. The maximum value for the sustainability index was also observed at approximately 3.28.

Keywords

References

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Karafan Quarterly Scientific Journal
Volume 20, Issue 3
Engineering
December 2024
Pages 81-105

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History

  • Receive Date: 28 January 2023
  • Revise Date: 06 May 2023
  • Accept Date: 11 June 2023

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