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Summary
The spray concentration tower plays an indispensable role in solar energy - air evaporating separation saline wastewater treatment system. The heat and mass transfer performance of the counter-flow spray concentration process is investigated in this paper. The CFD model is established for studying the heat and mass transfer performance of this process under different working conditions and the experiment research is carried out to prove the simulation. The influence of air flow rate and different heating form are also discussed. The results show that the maximum relative errors between the experiment and simulation results of the outlet air temperature, the outlet wastewater temperature and the outlet air relative humidity are 2.58%, 2.92% and 5.94%, respectively. Increasing the temperature of supplied air and spraying brine is beneficial to accelerating the concentration rate. In addition, when wastewater is used as the heat carrier, the evaporation efficiency (EE) becomes higher.
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Details
- Original title: CFD research of the counter-flow spray concentration process in solar energy - air evaporating separation saline wastewater treatment system.
- Record ID : 30026012
- Languages: English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Publication date: 2019/08/24
- DOI: http://dx.doi.org/10.18462/iir.icr.2019.0631
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Indexing
- Themes: Refrigeration related domains
- Keywords: Spray; CFD; Air; Separation; Evaporation; Solar energy; Concentration; Waste water
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- Source: 1st International Refrigeration, Energy and Environment Colloquium. Proceedings: Hammamet, Tunisia, March 24-27, 2016.
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