Development of sustainable energy options for buildings in a sustainable society
Yükleniyor...
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevıer Scıence Bv
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, a building with a volume of 392 m(3) and a net floor area of 140 m(2) is considered as a case study with the indoor and exterior air temperatures of 20 degrees C and -15 degrees C, respectively. For heating applications, seven options are studied, namely (i) electric boiler, (ii) cogeneration, (iii) biomass/wood, (iv) ground heat pump water-water (v) heat pump borehole/glycol, (vi) standard boiler and (vii) solar collector as driven by renewable and non-renewable energy sources. Energy and exergy analyses are conducted to assess their performances and compare them through energy and exergy efficiencies and sustainability index. Energy and exergy flows are studied and illustrated accordingly. Also, the energetic and exergetic renewability ratios are employed here along with sustainability index. The results show that overall exergy efficiencies of heating systems are found to be 2.8%, 5.5%, 6.0%, 6.4%, 6.1%, 5.4% and 25.3%, while the sustainability index values for the seven cases considered are calculated to be 1.029, 1.058, 1.063, 1.069, 1.065, 1.057 and 1.338 for options 1 through 7, respectively. So, solar collector-based heating system gives the highest efficiency and sustainability index values. (C) 2011 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Buildings, Efficiency, Energy, Exergy, HVAC, Sustainability, Cities
Kaynak
Sustainable Cities and Society
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
1
Sayı
2
