Title: Exergy, can it be used to reflect the environmental issues of a fuel?

Authors: Yaning Zhang; Tao Liu; Mengmeng Guang; Wenming Fu; Bingxi Li

Addresses: School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China ' School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China ' School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China ' School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China ' School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

Abstract: Can exergy be used to reflect the environmental issues of a fuel? This article elaborates if and how exergy can be used to reflect the environmental issues of a fuel, and details the processes for some typical fuels. The results show that the exergy method can be well used to reflect the environmental issues of a fuel. The case studies further show that coal samples (1,324.99-1,437.47 kJ/kg) have higher total environmental impacts than the biomass samples (381.02-1,078.81 kJ/kg), and the environmental impacts are mainly contributed by CO₂ (52.72%-99.37%), followed by ash (0.18%-35.93%), SO₂ (0%-11.77%) and NO₂ (0.16%-8.75%).

Keywords: exergy; fuel; environmental issue; coal; biomass.

DOI: 10.1504/IJEX.2023.128516

International Journal of Exergy, 2023 Vol.40 No.1, pp.1 - 14

Received: 29 Oct 2021
Accepted: 05 Mar 2022
Published online: 25 Jan 2023 *