Thermodynamic Optimization of Irreversible Radiation-Driven Power Plants

Sahin A. Z., Yilbas B. S., Ayar T.

JOURNAL OF ENERGY ENGINEERING, cilt.139, sa.3, ss.207-213, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 139 Sayı: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1061/(asce)ey.1943-7897.0000110
  • Dergi Adı: JOURNAL OF ENERGY ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.207-213
  • Anahtar Kelimeler: Power plant, Efficiency, Power maximization, Irreversibility, OPTIMUM OPERATING-CONDITIONS, EFFICIENCY, ENGINE
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

A second-law thermodynamic analysis is carried out for a solar-driven power plant subjected to radiation and convection heat transfer. The collective role of radiation and convection modes of heat transfer is investigated. Heat transfer from a hot reservoir is assumed to be radiation dominated, whereas convection heat transfer is assumed to be the primary mode of heat transfer to a low temperature reservoir. The irreversibilities resulting from these finite rates of heat transfer are considered in determining the limits of efficiency and power generation that are discussed through varying process parameters. The upper limit is found to be a function of both the functional temperature dependence and of heat transfer and relevant system parameters. (C) 2013 American Society of Civil Engineers.