Performance investigation of the Afyon geothermal district heating system for building applications: Exergy analysis

This paper deals with an energy and exergy evaluation and modeling of geothermal district heating systems for their system analysis, performance evaluation and optimization. As a comprehensive case study, the Afyon geothermal district heating system (AFJET) in Afyon, Turkey is considered and actual thermal data are collected and employed for analysis. Using actual system data, an evaluation of the district heating system performance, energy and exergy efficiencies, and exergy destructions in the system are conducted in this regard. This study is also conducted to show how energy and exergy efficiencies of the GDHSs will change with the reference temperature and how exergy losses will affect by the temperature difference between the geothermal resource and the supply temperature of the district heating distribution network. In addition, the negative effects of discharge waters of the AFJET are presented. The energy and exergy efficiencies of the entire AFJET are found to be 37.59% and 47.54%, respectively. The results are expected to be helpful to researchers and engineers in the area. © 2010 Published by Elsevier Ltd. All rights reserved.

Yazar Keeba A.
Kayfeci M.
Gedik E.
Yayın Türü Article
Tek Biçim Adres https://hdl.handle.net/20.500.12628/6960
Tek Biçim Adres 10.1016/j.applthermaleng.2010.12.024
Konu Başlıkları District heating system
Efficiency
Energy analysis
Exergy analysis
Geothermal energy
Koleksiyonlar Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD
Scopus İndeksli Yayınlar Koleksiyonu
Dergi Adı Applied Thermal Engineering
Dergi Cilt Bilgisi 31
Dergi Sayısı 06.Jul
Sayfalar 1229 - 1237
Yayın Yılı 2011
Eser Adı
[dc.title]
Performance investigation of the Afyon geothermal district heating system for building applications: Exergy analysis
Yazar
[dc.contributor.author]
Keeba A.
Yazar
[dc.contributor.author]
Kayfeci M.
Yazar
[dc.contributor.author]
Gedik E.
Yayın Yılı
[dc.date.issued]
2011
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
This paper deals with an energy and exergy evaluation and modeling of geothermal district heating systems for their system analysis, performance evaluation and optimization. As a comprehensive case study, the Afyon geothermal district heating system (AFJET) in Afyon, Turkey is considered and actual thermal data are collected and employed for analysis. Using actual system data, an evaluation of the district heating system performance, energy and exergy efficiencies, and exergy destructions in the system are conducted in this regard. This study is also conducted to show how energy and exergy efficiencies of the GDHSs will change with the reference temperature and how exergy losses will affect by the temperature difference between the geothermal resource and the supply temperature of the district heating distribution network. In addition, the negative effects of discharge waters of the AFJET are presented. The energy and exergy efficiencies of the entire AFJET are found to be 37.59% and 47.54%, respectively. The results are expected to be helpful to researchers and engineers in the area. © 2010 Published by Elsevier Ltd. All rights reserved.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
District heating system
Konu Başlıkları
[dc.subject]
Efficiency
Konu Başlıkları
[dc.subject]
Energy analysis
Konu Başlıkları
[dc.subject]
Exergy analysis
Konu Başlıkları
[dc.subject]
Geothermal energy
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1359-4311
Sponsor YAYINCI
[dc.description.sponsorship]
The authors gratefully acknowledge the support provided for the present work by the AFJET Geothermal Inc. and the personal support of the managing director, Mr. Erhan Ozsakaci. They are also very grateful to the reviewers and the editor for their valuable and constructive comments, which have been utilized in improving the quality of the paper. E energy (kJ) Ex exergy (kJ) E ' energy rate (kW) Ex · exergy rate (kW) F ' exergy rate of the fuel (kW) f exergetic factor (%) h specific enthalpy (kJ/kg) I ' irreversibility (exergy destruction) rate (kW) IP improvement potential rate (kW) m ' mass flow rate (kg/s) P ' exergy rate of the product (kW) P pressure (kPa) Q ' rate of heat (kW) s specific entropy (kJ/kg K) S ' entropy rate (kW/K) W ' work rate, power (kW) T temperature (°C or K) SExI specific exergy index (dimensionless)
İlk Sayfa Sayısı
[dc.identifier.startpage]
1229
Son Sayfa Sayısı
[dc.identifier.endpage]
1237
Dergi Adı
[dc.relation.journal]
Applied Thermal Engineering
Dergi Sayısı
[dc.identifier.issue]
06.Jul
Dergi Cilt Bilgisi
[dc.identifier.volume]
31
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1016/j.applthermaleng.2010.12.024
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/6960
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97
09.12.2022 tarihinden bu yana
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1
09.12.2022 tarihinden bu yana
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05 Haziran 2024 19:28
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