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The Application of Radiation Shields for Thermal Control of Superheater Tubes in Boiler

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DOI: 10.4236/epe.2012.42011    6,876 Downloads   11,680 Views  

ABSTRACT

Superheater tubes temperature control is a necessity for long lifetime, high efficiency and high load following capability in boiler. This study reports a new approach for the control strategy design of boilers with special shields. The presented control strategy is developed based on radiation thermal shields with low emissivity coefficient and high reflectivity or scattering coefficient. In order to simulate the combustion event in boiler and heat transfer to superheater tubes, an effective set of computational fluid dynamic (CFD) codes is used. Results indicate a successful identification of over- heated zones on platen superheater tubes and effect of radiation shields for solving this problem.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

S. Falahatkar, T. Pour-Reza and H. Karimi, "The Application of Radiation Shields for Thermal Control of Superheater Tubes in Boiler," Energy and Power Engineering, Vol. 4 No. 2, 2012, pp. 77-84. doi: 10.4236/epe.2012.42011.

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