Exergetic Modeling of Oil Shale-fired Circulating Fluidized Bed Systems
Küçük Resim Yok
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the recent years, exergy analysis has been widely used by many investigators in the design, simulation and performance evaluation of thermal systems. However, the studies conducted on exergetic assessment of oil shale-fired fluidized bed systems are very limited, although those on the design, operation and energetic evaluation of these systems are much in numbers. Oil shale has been successfully burnt in many circulating fluidized beds due to their values for the satisfactory desulphurization and combustion efficiency, low NOx emission as well as the adaptability to low-grade coal, appropriate capital and operation costs. In this study, the relations related to the exergetic evaluation of the oil shale-fired fluidized bed systems are given for modeling purposes first. Next, this model is applied to a highly efficient oil shale circulating fluidized bed system having a boiler with a steam mass flow rate of 65 t/h designed for Huadian thermal power plant in China using the actual operational data given in the literature. The exergy efficiencies of the system are then determined to assess its performance and to elucidate potentials for improvement. Finally, the results obtained are discussed, while some recommendations are made.
Açıklama
Anahtar Kelimeler
circulating fluidized bed, energy sources, exergy, oil shale, sustainable development
Kaynak
Energy Sources Part A-Recovery Utilization and Environmental Effects
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
31
Sayı
4
