| Numerical Simulation and Experimental Studies of Air Treatment Process with Water Spray of One Row Parallel Flow |
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| 作者姓名： | 倪波 |
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| 作者单位： | NI BoCollege of Environmental Science &. Engineering，Dong Hua University，Shanghai，200051，P. R. China |
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| 摘 要： | The main purpose of the present work is to make a further insight into the procedure of heat and mass transfer between water droplets sprayed and air stream in a direct evaporative air cooler used in air-conditioning system in textile mills. The thermodynamic models of the two-phase flow in such a air treatment system have been developed for one row parallel flow spray. The fields of temperature and relative humidity in spray chamber, as well as the trajectories of sprayed drops have been obtained by calculation. A series of experiment aiming at quantifying the system performance and its influence factors have been conducted. It indicates that the increases of air velocity and water/air ratio while the decrease of nozzle density are favorable. Finally, the comparison between numerical simulation and experimental results have been carried out. Good agreements have been found for outlet air temperature while a maximum error of 10% has been observed for air relative humidity.
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Numerical Simulation and Experimental Studies of Air Treatment Process with Water Spray of One Row Parallel Flow |
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| NI BoCollege of Environmental Science &. Engineering,Dong Hua University,Shanghai,P. R. China.Numerical Simulation and Experimental Studies of Air Treatment Process with Water Spray of One Row Parallel Flow[J].Journal of Donghua University,2001,18(2). |
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| Authors: | NI BoCollege of Environmental Science & Engineering Dong Hua University Shanghai P R China |
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| Institution: | College of Environmental Science & Engineering, Dong Hua University, Shanghai, 200051, P.R. China |
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| Abstract: | The main purpose of the present work is to make a further insight into the procedure of heat and mass transfer between water droplets sprayed and air stream in a direct evaporative air cooler used in air-conditioning system in textile mills. The thermodynamic models of the two-phase flow in such a air treatment system have been developed for one row parallel flow spray. The fields of temperature and relative humidity in spray chamber, as well as the trajectories of sprayed drops have been obtained by calculation. A series of experiment aiming at quantifying the system performance and its influence factors have been conducted. It indicates that the increases of air velocity and water/air ratio while the decrease of nozzle density are favorable. Finally, the comparison between numerical simulation and experimental results have been carried out. Good agreements have been found for outlet air temperature while a maximum error of 10% has been observed for air relative humidity. |
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| Keywords: | heat and mass transfer air washer evaporative air cooling adiabatic humidifying |
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