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INVESTIGATION OF BUILDING HEATING SYSTEMS USING EXERGY ANALYSIS METHOD

Year 2016, Volume: 57 Issue: 681, 59 - 64, 17.11.2016

Abstract

In this study, low exergy systems are explained regarding the exergy term. In heating systems energy
and exergy flows pass through from the generation stage to the building envelope. To evaluate the
system, every stage should be investigated according to energy and exergy flows. In this context an
example building heating system is studied. By using the exergy analysis, it is possible to determine
the efficient and inefficient stages in the system. Total exergy input rate to the system is calculated as
107 kW. The maximum exergy loss rate is found to be 65.23 kW which took place in the generation
stage. The energy and exergy efficiencies of the heating system are calculated as 45.7% and 3.5%,
respectively.

References

  • 1. International Energy Agency. 2015. "Key World Energy Statistics," https://www.iea.org/publications/freepublications/publication/KeyWorld2015.pdf , son erişim tarihi: 07.03.2016.
  • 2. Schmidt, D. 2004. “Design of Low Exergy Buildings-Method and a Predesign Tool,” International Journal of Low Exergy and Sustainable Buildings, vol. 3, p.1-47.
  • 3. Balta, M. T., Kalinci, Y., Hepbasli, A. 2008. “Evaluating a Low Exergy Heating System from the Power Plant through the Heat Pump to the Building Envelope,” Energy and Buildings, vol. 40, p. 1799-1804.
  • 4. Shukuya, M. 2009. “Exergy Concept and its Application to the Built Environment,” Building and Environment, vol. 44, p. 1545-1550.
  • 5. Yıldız, A., Gungor, A. 2009. “Energy and Exergy Analyses of Space Heating in Buildings,” Applied Energy, vol. 86, p. 1939-1948.
  • 6. Hasan, A., Kurnitski, J., Jokiranta, K. 2009. “A Combined Low Temperature Water Heating System Consisting of Radiators and Floor Heating,” Energy and Buildings vol. 41, p. 470-479.
  • 7. Balta, M. T. 2012. “Exergetic Cost Analysis and Sustainability Assessment of Various Low Exergy Heating Systems,” Energy and Buildings, vol. 55, p. 721-727.
  • 8. Han, T., Zheng, Y., Gong, G. 2015. “Exergy Analysis of Building Thermal Load and Related Energy Flows in Buildings,” Indoor and Built Environment, November 3, doi:10.1177/1420326X15612881.
  • 9. International Energy Agency (IEA). 2011. “Low Exergy Systems for High Performance Buildings and Communities,” Annex 49, http://www.annex49.com/materials.html, son erişim tarihi: 20.03.2013.
  • 10. Türk Standartları Enstitüsü. 1998. TS 825, Binalarda Isı Yalıtım Kuralları.

EKSERJİ ANALİZİ YÖNTEMİ KULLANILARAK BİNA ISITMA SİSTEMLERİNİN İNCELENMESİ

Year 2016, Volume: 57 Issue: 681, 59 - 64, 17.11.2016

Abstract

Bu çalışmada, ekserji kavramı anlatılarak düşük ekserjili sistemler hakkında bilgi verilmiştir. Isıtma
sistemlerinde enerji ve ekserji akımları ısı üretim basamağından bina kabuğuna kadar geçmektedir.
Sistemin değerlendirilebilmesi için her basamaktaki enerji ve ekserji akımlarının incelenmesi gerekmektedir. Bu kapsamda örnek bir ısıtma sistemi incelenmiştir. Ekserji analizi yöntemiyle, sistemde
yer alan verimli ve verimsiz basamakların tespit edilmesi mümkün olmaktadır. Sisteme giren toplam
ekserji akısı 107 kW olarak bulunmuştur. En büyük ekserji kaybı akısı 65,23 kW olarak ısı üretim
basamağı için hesaplanmıştır. Isıtma sisteminin enerji ve ekserji verimleri sırasıyla, %45,7 ve %3,5
olarak bulunmuştur.

References

  • 1. International Energy Agency. 2015. "Key World Energy Statistics," https://www.iea.org/publications/freepublications/publication/KeyWorld2015.pdf , son erişim tarihi: 07.03.2016.
  • 2. Schmidt, D. 2004. “Design of Low Exergy Buildings-Method and a Predesign Tool,” International Journal of Low Exergy and Sustainable Buildings, vol. 3, p.1-47.
  • 3. Balta, M. T., Kalinci, Y., Hepbasli, A. 2008. “Evaluating a Low Exergy Heating System from the Power Plant through the Heat Pump to the Building Envelope,” Energy and Buildings, vol. 40, p. 1799-1804.
  • 4. Shukuya, M. 2009. “Exergy Concept and its Application to the Built Environment,” Building and Environment, vol. 44, p. 1545-1550.
  • 5. Yıldız, A., Gungor, A. 2009. “Energy and Exergy Analyses of Space Heating in Buildings,” Applied Energy, vol. 86, p. 1939-1948.
  • 6. Hasan, A., Kurnitski, J., Jokiranta, K. 2009. “A Combined Low Temperature Water Heating System Consisting of Radiators and Floor Heating,” Energy and Buildings vol. 41, p. 470-479.
  • 7. Balta, M. T. 2012. “Exergetic Cost Analysis and Sustainability Assessment of Various Low Exergy Heating Systems,” Energy and Buildings, vol. 55, p. 721-727.
  • 8. Han, T., Zheng, Y., Gong, G. 2015. “Exergy Analysis of Building Thermal Load and Related Energy Flows in Buildings,” Indoor and Built Environment, November 3, doi:10.1177/1420326X15612881.
  • 9. International Energy Agency (IEA). 2011. “Low Exergy Systems for High Performance Buildings and Communities,” Annex 49, http://www.annex49.com/materials.html, son erişim tarihi: 20.03.2013.
  • 10. Türk Standartları Enstitüsü. 1998. TS 825, Binalarda Isı Yalıtım Kuralları.
There are 10 citations in total.

Details

Primary Language Turkish
Journal Section Energy Performance Evaluation of University Buildings: MCBU Köprübaşı Vocational School Example
Authors

Cem Tahsin Yücer

Publication Date November 17, 2016
Submission Date March 20, 2016
Acceptance Date October 31, 2016
Published in Issue Year 2016 Volume: 57 Issue: 681

Cite

APA Yücer, C. T. (2016). EKSERJİ ANALİZİ YÖNTEMİ KULLANILARAK BİNA ISITMA SİSTEMLERİNİN İNCELENMESİ. Mühendis Ve Makina, 57(681), 59-64.

Derginin DergiPark'a aktarımı devam ettiğinden arşiv sayılarına https://www.mmo.org.tr/muhendismakina adresinden erişebilirsiniz.

ISSN : 1300-3402

E-ISSN : 2667-7520