Energy and exergy analysis of erciyes university No. 1 heat center

Polat B., ACAR H. İ., KAHRAMAN N.

Process Safety and Environmental Protection, vol.190, pp.314-321, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 190
  • Publication Date: 2024
  • Doi Number: 10.1016/j.psep.2024.08.020
  • Journal Name: Process Safety and Environmental Protection
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, Food Science & Technology Abstracts, Greenfile, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.314-321
  • Keywords: District Heating System, Energy Analysis, Exergy Analysis, Second Law Efficiency
  • Erciyes University Affiliated: Yes

Abstract

The present study comprises an energy and exergy analysis of a steam boiler with a capacity of 10 tons of steam per hour, 9817 m of pipelines of various diameters, and 96 heat exchangers in the heat exchanger centers under the usage unit (hospitals, academic institutions, and residences located) in Erciyes University Heat Center, which is still in use in Kayseri. Each element's exergy loss was calculated. These findings led to the discovery of exergy yields (second law yields). The outcomes are presented graphically. The analysis revealed that the steam boiler was the component with the most significant exergy loss, amounting to 5151.12 kW. The thermal efficiency of the boiler was calculated to be 93.1 %, while the exergy efficiency was determined to be 28.6 %. Following the boiler, the line losses in the pipelines were calculated to be 3.14 %. The second law efficiency of the Heat Center was found to be 22.7 %.