Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title A Experimental Study on the Performance of the Humidity Control Unit Integration of Heating and Cooling using Thermoelectric Element and Earth tube
Authors Sung Woo Cho ; Pyeong Chan Ihm
DOI https://doi.org/10.6110/KJACR.2020.32.5.215
Page pp.215-222
ISSN 1229-6422
Keywords 4-모드 유닛; 열전소자; 공기온도; 절대습도; 전열량; 재생 4-mode unit; Thermoelectric element; Air temperature; Absolute Humidity; Total enthalpy; Renewable
Abstract The 4-mode unit system was developed with the integration of the earth tube system, which can control the humidity of outdoor air for cooling and heating. This study experimentally investigated the performance of the developed 4-mode unit using the earth tube system and demonstrates that the system can modulate the humidity. In the cooling mode, the dehumidification effect at the outlet of the 4-mode unit is reduced approximately 15.7% during daylight. According to the results of the cooling mode during daylight, the wheel filter could be expected to be renewable because of the moisture evaporation. In the cooling mode, the air temperature is reduced approximately 1.6% during daylight but increases at night. In the heating mode, the air temperature of the outlet increases during daylight and at night.