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 Study on Indoor Air Quality Monitoring According to the Type of Ventilation System Using ESP-NOW Communication
Authors Yu Ra Son ; Seung Bin Kim ; Jeong Hoon Yang
Page pp.421-433
ISSN 1229-6422
Keywords 욕실 배기팬; ESP-NOW통신; 실내 공기질; 주방 레인지 후드; 오픈 소스 하드웨어 Bathroom exhaust fan; ESP-NOW Communications; Indoor Air Quality; Kitchen range hood; Open source hardware
Abstract This is a series of studies to develop an integrated ventilation system algorithm aimed at improving indoor air quality in apartment houses. The purpose of this study was to examine the problems of the ventilation system by measuring and observing changes in the indoor air quality according to the type of ventilation system used by residents of apartment houses. Using open-source hardware sensors and ESP-NOW's N:1 communication, the generation and spread of kitchen pollutants and changes in the bathroom wetting environment were analyzed. Contaminants that could not be removed from the kitchen range hood were stacked on the upper part of the kitchen and diffused along the ceiling. The operation of the household ventilation device reduced the concentration of fine dust, but it was more than 10 times the concentration standard of fine dust. CO2 was effective in providing natural ventilation. The bathroom wet environment was effective in reducing humidity when the exhaust fan was operated for a certain period or more during and after using the bathroom. Even though the humidity decreased, there was a high possibility that the condensed water vapor inside the bathroom remained. In addition, when the forced air supply was released after using the bathroom, it improved the wet environment and effectively supplied an appropriate air flow to the bathroom.