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Energy, exergy and economic analysis of industrial boilers

  • Saidur, R.
  • Ahamed, J.U.
  • Masjuki, H.H.
Registered author(s):

    In this paper, the useful concept of energy and exergy utilization is analyzed, and applied to the boiler system. Energy and exergy flows in a boiler have been shown in this paper. The energy and exergy efficiencies have been determined as well. In a boiler, the energy and exergy efficiencies are found to be 72.46% and 24.89%, respectively. A boiler energy and exergy efficiencies are compared with others work as well. It has been found that the combustion chamber is the major contributor for exergy destruction followed by heat exchanger of a boiler system. Furthermore, several energy saving measures such as use of variable speed drive in boiler's fan energy savings and heat recovery from flue gas are applied in reducing a boiler energy use. It has been found that the payback period is about 1Â yr for heat recovery from a boiler flue gas. The payback period for using VSD with 19Â kW motor found to be economically viable for energy savings in a boiler fan.

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    Article provided by Elsevier in its journal Energy Policy.

    Volume (Year): 38 (2010)
    Issue (Month): 5 (May)
    Pages: 2188-2197

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    Handle: RePEc:eee:enepol:v:38:y:2010:i:5:p:2188-2197
    Contact details of provider: Web page: http://www.elsevier.com/locate/enpol

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    1. Saidur, R. & Masjuki, H.H. & Jamaluddin, M.Y., 2007. "An application of energy and exergy analysis in residential sector of Malaysia," Energy Policy, Elsevier, vol. 35(2), pages 1050-1063, February.
    2. Rosen, M.A., 1992. "Evaluation of energy utilization efficiency in Canada using energy and exergy analyses," Energy, Elsevier, vol. 17(4), pages 339-350.
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    4. Utlu, Zafer & Hepbasli, Arif, 2007. "A review and assessment of the energy utilization efficiency in the Turkish industrial sector using energy and exergy analysis method," Renewable and Sustainable Energy Reviews, Elsevier, vol. 11(7), pages 1438-1459, September.
    5. Yeh, Sonia & Rubin, Edward S., 2007. "A centurial history of technological change and learning curves for pulverized coal-fired utility boilers," Energy, Elsevier, vol. 32(10), pages 1996-2005.
    6. Oladiran, M.T. & Meyer, J.P., 2007. "Energy and exergy analyses of energy consumptions in the industrial sector in South Africa," Applied Energy, Elsevier, vol. 84(10), pages 1056-1067, October.
    7. Dincer, Ibrahim, 2002. "The role of exergy in energy policy making," Energy Policy, Elsevier, vol. 30(2), pages 137-149, January.
    8. Saidur, R. & Rahim, N.A. & Ping, H.W. & Jahirul, M.I. & Mekhilef, S. & Masjuki, H.H., 2009. "Energy and emission analysis for industrial motors in Malaysia," Energy Policy, Elsevier, vol. 37(9), pages 3650-3658, September.
    9. Saidur, R. & Sattar, M.A. & Masjuki, H.H. & Abdessalam, H. & Shahruan, B.S., 2007. "Energy and exergy analysis at the utility and commercial sectors of Malaysia," Energy Policy, Elsevier, vol. 35(3), pages 1956-1966, March.
    10. Wall, Göran & Sciubba, Enrico & Naso, Vincenzo, 1994. "Exergy use in the Italian society," Energy, Elsevier, vol. 19(12), pages 1267-1274.
    11. Özdoĝan, Si̇bel & Arikol, Mahi̇r, 1995. "Energy and exergy analyses of selected Turkish industries," Energy, Elsevier, vol. 20(1), pages 73-80.
    12. Kanoglu, Mehmet & Dincer, Ibrahim & Rosen, Marc A., 2007. "Understanding energy and exergy efficiencies for improved energy management in power plants," Energy Policy, Elsevier, vol. 35(7), pages 3967-3978, July.
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