Title: Energy-exergy-emission-economic performance and multi-response optimisation of a VCR CI engine using bio ethanol blended diesel fuel with Al₂O₃ nanoparticles

Authors: Sudhansu S. Mishra; Taraprasad Mohapatra

Addresses: Department of Mechanical Engineering, Government College of Engineering, Keonjhar, India ' Department of Mechanical Engineering, C.V. Raman Global University, Bhubaneswar, India

Abstract: A variable ratio compression ignition engine is tested experimentally for different fuel type (diesel, e-diesel and nano fuel), load (4 kg, 8 kg and 12 kg), and compression ratios (14, 16, and 18) to determine its performance (energy and exergy efficiency), emission (NOx emission), and economic characteristics (% relative cost). Multiple response optimisation is carried out using response surface methodology for maximum performance, minimum emissions and cost. 5.2 kg load, 18 CR, and nano fuel are determined as the optimal input parameters for attaining maximum energy and exergy efficiency of 24.8% and 62.9%, minimum NOx emission and % cost variation of 208.4 ppm, and -6.5 respectively.

Keywords: Al₂O₃ nanoparticles; energy; exergy; economic analysis; multi-response optimisation; response surface methodology; RSM.

DOI: 10.1504/IJEX.2023.130943

International Journal of Exergy, 2023 Vol.41 No.1, pp.74 - 90

Received: 08 Sep 2022
Received in revised form: 19 Dec 2022
Accepted: 19 Dec 2022
Published online: 14 May 2023 *

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