Title: Assessment of exergy-based performance and sustainability indicators of a sewage water source heat pump system

Authors: Aysegul Gungor Celik; Arif Hepbasli

Addresses: Department of Mechanical Engineering, Faculty of Hasan Ferdi Turgutlu Technology, Manisa Celal Bayar University, Manisa, Turkey ' Department of Energy Systems Engineering, Faculty of Engineering, Yasar University, 35100 Bornova, Izmir, Turkey

Abstract: Exergy analysis helps identify the amount and the positions of exergy losses in any system along with its main components. To achieve sustainability, these irreversibilities should be diminished. This study aims at presenting the exergetic-based performance of a sewage water source heat pump system based on experimental data. Initially, the exergetic performance assessments are carried out and then the exergetic performance results are evaluated using exergy-based sustainability indicators. The SWSHP system had the values for exergetic efficiency 57.77%-63.81% and overall sustainability index 2.31-2.72, respectively. Eight other exergy-based indicators are applied to determine and compare the most impacted component among the others.

Keywords: advanced exergy analysis; enhanced exergy analysis; sewage water source heat pump; conventional exergy analysis; waste heat.

DOI: 10.1504/IJEX.2024.138092

International Journal of Exergy, 2024 Vol.43 No.4, pp.317 - 330

Received: 27 Jun 2023
Accepted: 04 Nov 2023
Published online: 29 Apr 2024 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article