Heat Exchange Calculation of a Regenerative Air Heater with Numerical Simulation Method

Abstract:

According to the structure and working principle of rotary air preheater,the heat transfer calculation model is set up with reasonable simplification. Combining with the design parameters of the rotary air preheater of a 400 t/h pulverized coal boiler unit ,the results of practical calculation show that the said thermodynamic calculation method not only has higher precision of calculation,but also can get the temperature distributions of the gas, air and heat surface in each cross-section of the rotary air preheater. The result of numerical simulation calculation tallies well with the original designed data. It can be used for the heat calculation both two-sectorial and three-sectorial air heater; it can be used for performance analysis of the regenerative air heater.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 1416-1419
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.1416
• Online since: December 2013
• Authors: Ri Guang Wei, Zhen Xiao Qu, Jian Qiang Gao
• Keywords: Air Heater, Heat Exchange Calculation, Numerical Simulation, Regenerative

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