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IIR document

Experimental study on a air-conditioning system using membrane dehumidification module.

Number: pap. n. 383

Author(s) : YOON S. H., KIM D. H., KIM Y., et al.

Summary

Vapor compression systems have technical limitations to reduce power consumption and environmental effects due to chemical refrigerants. Therefore, we are paying attention to a membrane air-conditioning system using water as a refrigerant. Since there is no chemical refrigerator and compressor, power consumption of the membrane air-conditioning system can be greatly reduced and there is no environmental impact such as global warming. A dehumidifying nanocomposite membrane has been developed. Since this dense membrane has hydrophilic nanochannel, water vapor can be permeated. Therefore, if a difference in water vapor partial pressure occurs using a vacuum pump, this membrane can remove moisture from the supply air. We built a permeability testing device of the developed membrane. The test cell was placed in a thermo-hygrostat bath. The flow rate, temperature and relative humidity at the inlet and outlet of the test cell were measured and recorded. The water vapor permeability through the membrane was measured to 50 g/m2h/kPa. The membrane dehumidification module was designed based on this experimental result and assembled with an IEC (indirect evaporative cooler) module for integrating the air-conditioning system. The cooling capacity measured up to 1.2 kW. The feasibility of the membrane air conditioning system has been demonstrated.

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Details

  • Original title: Experimental study on a air-conditioning system using membrane dehumidification module.
  • Record ID : 30025987
  • 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.2019.0383

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