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http://dx.doi.org/10.5762/KAIS.2016.17.12.476

A thermal-flow analysis of deaerator floor of power plant for reducing the radiative heat transfer effect  

Kim, Tae-Kwon (Dept. of Mechanical & Automotive Engineering, Keimyung University)
Ha, Ji-Soo (Dept. of Mechanical & Automotive Engineering, Keimyung University)
Choi, Yong-Seok (Dept. of Mechanical Engineering, Keimyung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.12, 2016 , pp. 476-481 More about this Journal
Abstract
Steam power generation is used to produce electricity through a generator that is connected to a steam turbine. As a result, the surface temperature of the deaerator is $70^{\circ}C$during the summer season, the surface temperature of the storage tank is $67^{\circ}C$, and the air temperature is $50^{\circ}C$. This environment is inappropriate for workers and instruments. Workers adjacent to the deaerator and storage tank in particular feel higher temperatures because of the radiative heat transfer effect. Therefore, we optimized the cooling conditions by computational analysis. Case 1 is the current shape of the power plant, Case 2 has additional insulation, and Case 3 has a radiation shield. Flow is caused by a temperature difference between the heat sources in the wall, and hot air is trapped in the right upper end. Based on the temperature contours and the maximum temperature of the surfaces, Case 2 was found to be the most efficient for reducing radiative heat transfer effects.
Keywords
Deaerator; Insulation; Radiation shield; Radiative heat tansfer effect;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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