Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving
In view of the disadvantages of wet evaporative cooling tower such as large water evaporation, large sewage discharge, and large fog plume in winter, this paper summarized the calculation formulas of air parameters in the air-water two-phase heat and mass transfer for the coil type, the filling type...
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| Format: | Article |
| Language: | English |
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Editorial Department of Power Generation Technology
2021-10-01
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| Series: | 发电技术 |
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| Online Access: | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21033 |
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| author | Zhiming WANG Xinquan PAN Weinan HE Yikun TAN Yuanbin ZHAO |
| author_facet | Zhiming WANG Xinquan PAN Weinan HE Yikun TAN Yuanbin ZHAO |
| author_sort | Zhiming WANG |
| collection | DOAJ |
| description | In view of the disadvantages of wet evaporative cooling tower such as large water evaporation, large sewage discharge, and large fog plume in winter, this paper summarized the calculation formulas of air parameters in the air-water two-phase heat and mass transfer for the coil type, the filling type and composite type evaporative cooling tower. Combined with real-time inlet air temperature, moisture content and mass flow, the accurate calculation method of air temperature, moisture content, enthalpy and other parameters in the process of air-water heat and mass transfer were further clarified. The water evaporation rate, discharge rate and water saving amount were calculated at the same time period. The calculation results show that under the same inlet air relative humidity, the water evaporation rate and make-up rate corresponding to dry bulb temperature of 34℃ are 15% less than those corresponding to dry bulb temperature of 20℃. Under the same wet bulb temperature, the water evaporation rate and make-up water rate corresponding to dry bulb temperature of 34℃ increase by 48.8% than that corresponding to dry bulb temperature of 20℃. Therefore, the accurate calculation of air parameters in the evaporative cooling process, could avail the real-time calculation and regulation of evaporation rate, water make-up rate, discharge rate, and promote the optimization of water saving, plume abatement, energy saving and discharge reduction for wet evaporative cooling tower. |
| format | Article |
| id | doaj-art-351accc6b6664a24bfba1ab1bd7f8051 |
| institution | Kabale University |
| issn | 2096-4528 |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Editorial Department of Power Generation Technology |
| record_format | Article |
| series | 发电技术 |
| spelling | doaj-art-351accc6b6664a24bfba1ab1bd7f80512024-11-09T02:42:03ZengEditorial Department of Power Generation Technology发电技术2096-45282021-10-0142560461310.12096/j.2096-4528.pgt.21033fdjs-42-5-604Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy SavingZhiming WANGXinquan PANWeinan HEYikun TANYuanbin ZHAOIn view of the disadvantages of wet evaporative cooling tower such as large water evaporation, large sewage discharge, and large fog plume in winter, this paper summarized the calculation formulas of air parameters in the air-water two-phase heat and mass transfer for the coil type, the filling type and composite type evaporative cooling tower. Combined with real-time inlet air temperature, moisture content and mass flow, the accurate calculation method of air temperature, moisture content, enthalpy and other parameters in the process of air-water heat and mass transfer were further clarified. The water evaporation rate, discharge rate and water saving amount were calculated at the same time period. The calculation results show that under the same inlet air relative humidity, the water evaporation rate and make-up rate corresponding to dry bulb temperature of 34℃ are 15% less than those corresponding to dry bulb temperature of 20℃. Under the same wet bulb temperature, the water evaporation rate and make-up water rate corresponding to dry bulb temperature of 34℃ increase by 48.8% than that corresponding to dry bulb temperature of 20℃. Therefore, the accurate calculation of air parameters in the evaporative cooling process, could avail the real-time calculation and regulation of evaporation rate, water make-up rate, discharge rate, and promote the optimization of water saving, plume abatement, energy saving and discharge reduction for wet evaporative cooling tower.https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21033wet evaporative cooling towerheat and mass transferwater saving optimizationenergy saving and discharge reductionplume abatement characteristics |
| spellingShingle | Zhiming WANG Xinquan PAN Weinan HE Yikun TAN Yuanbin ZHAO Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving 发电技术 wet evaporative cooling tower heat and mass transfer water saving optimization energy saving and discharge reduction plume abatement characteristics |
| title | Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving |
| title_full | Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving |
| title_fullStr | Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving |
| title_full_unstemmed | Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving |
| title_short | Calculation of Evaporative Cooling Air Parameters and Relevant Applications in Wet Evaporative Cooing Tower Water and Energy Saving |
| title_sort | calculation of evaporative cooling air parameters and relevant applications in wet evaporative cooing tower water and energy saving |
| topic | wet evaporative cooling tower heat and mass transfer water saving optimization energy saving and discharge reduction plume abatement characteristics |
| url | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21033 |
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