ShareSummary
on-vapor compression air-conditioning systems were proposed to overcome the limitation of the traditional airconditioning systems. It was reported that the membrane heat pump(MHP) has a high energy saving potential. The sensible heat and latent heat removal process can be separated by the system. A membrane-based vacuum dehumidification system(MVD) is the latent heat removal systems, consisting of a membrane mass exchanger and a vacuum compressor.
The water vapor discharge type membrane-based vacuum dehumidification system(W-MVD) and condenser combined
membrane-based vacuum dehumidification system(C-MVD) show high performance among the several structure of MVDs. One system can show a higher performance than another system according to temperature and humidity conditions, but there is lack of discussion about the ideal COP values for actual system design, analysis, and optimization. In this study, the ideal dehumidification COP of the two systems were defined by reversible cycle analysis. It was achieved by removing all irreversibility of system consisting of membrane mass exchangers, vacuum compressor and heat exchanger, and the ideal COP formulas were derived. Exergy analysis and compressor consumption modeling methods were used to verify the formulas, and the COP values calculated by them show a high consistency. when comparing the ideal COP of the MVDs based on the results, the W-MVD shows higher performance than the C-MVD in unsaturation outdoor air condition.
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Details
- Original title: Ideal performance analysis of membrane-based vacuum dehumidification systems.
- Record ID : 30033468
- Languages: English
- Subject: Technology
- Source: 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
- Publication date: 2023/05
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