Energy, exergy, thermoeconomic and sustainability analyses of a building heating system with a combi-boiler

ÇALIŞKAN H.

International Journal of Exergy, cilt.14, sa.2, ss.244-273, 2014 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 2
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1504/ijex.2014.060282
  • Dergi Adı: International Journal of Exergy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.244-273
  • Anahtar Kelimeler: Boiler, Building heating, Combi-boiler, Efficiency, Energy, Exergoeconomic, Exergy, Natural gas installation, Sustainability, Thermoeconomic
  • Uşak Üniversitesi Adresli: Evet

Özet

The energy, exergy, thermoeconomic and sustainability analyses are applied to the building heating system with a natural gas-fired combi-boiler. The building area is considered as 90 m2. Furthermore, the design and analysis of the natural gas installation of the building are done. Two different methodologies (Fine-HVAC and LowEx analyses) are used for energy analyses (heat loss and demand) of the building. As a result, the energy efficiency of the building is found to be 29.451% using LowEx method. The exergy efficiency of the building is also calculated as 2.906%. The general energy and exergy efficiencies of the combi-boiler are determined to be 94.223% and 12.573%, respectively. Furthermore, it is found that the combi-boiler, which is used in the building as a heating system device, is approximately 11% more sustainable than the building, and thermoeconomic analysis is more beneficial when the exergetic rates are considered. © 2014 Inderscience Enterprises Ltd.