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Zhao Jielian, Han Yanmin. Pumping Capacity for Keeping Low-Pressure in Low-Temperature Multi-Effect Desalination: A Theoretical Calculation[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2019, 39(11): 964-968. DOI: 10.13922/j.cnki.cjovst.2019.11.05
Citation: Zhao Jielian, Han Yanmin. Pumping Capacity for Keeping Low-Pressure in Low-Temperature Multi-Effect Desalination: A Theoretical Calculation[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2019, 39(11): 964-968. DOI: 10.13922/j.cnki.cjovst.2019.11.05

Pumping Capacity for Keeping Low-Pressure in Low-Temperature Multi-Effect Desalination: A Theoretical Calculation

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  • Received Date: June 13, 2019
  • Available Online: September 22, 2023
  • The influence of the release of non-condensable gas,escape of steam,and leakage of air on the optimized pumping-capacity,required to keep a pressure below 90 kPa in low-temperature multi-effect desalination(LT-MED)of seawater,was mathematically modeled and theoretically calculated.The original work was a more precise approximation of CO2-release and air-leakage.For instance,the dependence of CO2-release on the realistic situations,including but not limited to the initial temperature,evaporation temperature,salt solubility,pH-value,flow-rate and volume of the seawater-intake,could be calculated analytically and/or numerically.Moreover,the air-leakage was approximated to be a function of pressure and volume.The tentative discussions focused on the detailed calculation of specific cases.We suggest that the self-modified calculation,closer to the realistic situation,be of some basic and technological interest in development of LT-MED of seawater technology on industrial scale.
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