Browsing by Author "Celik, Aysegul Gungor"

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Citation - WoS: 1
Citation - Scopus: 1
Assessment of exergy-based performance and sustainability indicators of a sewage water source heat pump system
(Inderscience Publishers, 2024) Aysegul Gungor Celik; A. Hepbasli; Celik, Aysegul Gungor; Hepbasli, Arif
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. © 2024 Elsevier B.V. All rights reserved.
Citation - Scopus: 1
Avoidable thermodynamic inefficiencies evaluation of a sewage water source heat pump system
(INDERSCIENCE ENTERPRISES LTD, 2023) Aysegul Gungor Celik; Arif Hepbasli; Celik, Aysegul Gungor; Hepbasli, Arif
The performance of a sewage water source heat pump system is assessed through conventional/enhanced exergy-based methods in this present study. The experimental data used in the analyses are based the cooling mode. According to the conventional-based results the condenser has the lowest exergy efficiency. Beside this the enhanced exergy-based analysis results show the sewage water heat exchanger should be considered as the most significant component as it has the highest avoidable exergy destruction rate in the whole system and takes the improvement priority. Based on the enhanced exergy analysis 56% of the total exergy destruction belongs to the avoidable part.