The performance of a type of humidification-dehumidification desalination, where dehumidification is accomplished by compression is assessed. This desalination system is named humidification compression. Since the process sequence has a major effect on the system performance, in this study, two double-stage humidification compression configurations, where humidification columns operate at different pressures, are proposed and assessed. The mathematical models are developed for all parts of the system to assess the effect of operating conditions on these configurations. The modeling results are evaluated by experimental data, and the results indicate good conformity between modeling and experimental data. The pressure effect of the second humidification column, the temperature difference in the heat exchanger, and the water flow fraction to the first humidification column on the system performance are assessed. It is observed that water productivity and energy efficiency for the parallel configuration are higher than those of the series configuration under all operating conditions.

评估了通过压缩完成除湿的一种加湿-除湿脱盐的性能。该脱盐系统被称为加湿压缩。由于过程顺序对系统性能有重大影响，因此在本研究中，提出并评估了两个双级加湿压缩配置，其中加湿塔在不同的压力下运行。为系统的所有部分开发了数学模型，以评估操作条件对这些配置的影响。通过实验数据对建模结果进行评估，结果表明建模与实验数据之间具有良好的一致性。第二个加湿塔的压力效应，热交换器中的温差，并评估流向第一加湿塔的水流量对系统性能的影响。可以看出，在所有操作条件下，并联配置的水生产率和能效均高于串联配置的水生产率和能效。