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Optimization of the Fin Configuration of Air-cooled Condensing Wet Electrostatic Precipitator for Water Recovery from Power Plant Flue Gas

Chen, Yanhui
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384334785

Abstract Details

2013, MS, University of Cincinnati, Engineering and Applied Science: Chemical Engineering.
Growing concerns about freshwater availability increase the pressure on power plant to reduce water usages. The Innovations for Existing Plants Program from the US Department of Energy's National Energy Technology Laboratory is developing technologies in 5 categories to reduce water use. One of them is reclaiming water from combustion flue gas for usage as cooling water make-up. Considering that heat transfer efficiency is significantly enhanced in both gas and liquid phases due to corona wind and wetted wall inside the wet ESPs, a innovative technology of applying air-cooled condensing wet ESP for water recovery from flue gas was proposed. Additionally, the preliminary results show that the quantities of water extracted by the proposed air-cooled condensing wet ESP far exceed the FGD water make-up. However, the optimization of wet ESP's fin configuration is at an early stage, and the operation condition effects on the determination of optimal fin's configuration are not investigated yet. Thus, in this research, an analytical model of heat process in air-cooled condensing wet ESP system was developed to predict the heat transferred from flue gas to cooling air and the condensation rate of water vapor in the flue gas. Optimum fin's thickness and spacing under the operation conditions of 80°F ambient temperature and 5MW fan power were evaluated. In addition, the effects of fan power and ambient temperature on the determination of optimal fin's configuration and water recovery are investigated. It is found that the optimal fin's thickness is 0.25 inches, and the optimal fin's spacing is 0.5 inches with 5MW fan power, and outside cooling air temperature of 80 °F. Under these optimized parameters, the total amount of water recovery reaches 557.725 gpm. Furthermore, changing ambient temperature has no effects on optimal fin's configuration, while increasing fan power make the optimal fin's thickness and spacing shift to lower value.
Soon Jai Khang, Ph.D. (Committee Chair)
Timothy Keener, Ph.D. (Committee Member)
Joo Youp Lee, Ph.D. (Committee Member)
109 p.
Chemical Engineering
convective heat transfer

Recommended Citations

Citations

  • Chen, Y. (2013). Optimization of the Fin Configuration of Air-cooled Condensing Wet Electrostatic Precipitator for Water Recovery from Power Plant Flue Gas [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384334785

    APA Style (7th edition)

  • Chen, Yanhui. Optimization of the Fin Configuration of Air-cooled Condensing Wet Electrostatic Precipitator for Water Recovery from Power Plant Flue Gas. 2013. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384334785.

    MLA Style (8th edition)

  • Chen, Yanhui. "Optimization of the Fin Configuration of Air-cooled Condensing Wet Electrostatic Precipitator for Water Recovery from Power Plant Flue Gas." Master's thesis, University of Cincinnati, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384334785

    Chicago Manual of Style (17th edition)

ucin1384334785
567
© 2013, some rights reserved.Creative Commons License Optimization of the Fin Configuration of Air-cooled Condensing Wet Electrostatic Precipitator for Water Recovery from Power Plant Flue Gas by Yanhui Chen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.