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Method to control an air conditioner by directly measuring the relative humidity of indoor air to improve the comfort and energy efficiency

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  • Lim, Dae Kyu
  • Ahn, Byoung Ha
  • Jeong, Ji Hwan

Abstract

In modern society, air conditioning systems are widely used in places where people tend to congregate, such as in homes, companies, schools and work sites. Both the dry-bulb temperature and relative humidity should be measured and controlled to achieve better comfort and to improve the energy efficiency of air conditioning systems. However, the current evaporation pressure control technique based on evaporator outlet pressure reading (EPCP) method only uses the dry-bulb temperature to control the evaporation pressure, making this method insufficient with regard to improving comfort. An evaporation pressure control approach based on the evaporator pressure and the relative humidity reading (EPCR) method is developed here. The EPCR method changes the evaporation pressure based on the dry-bulb temperature and the relative humidity of the air. The performance of an identical air conditioner is measured experimentally while switching the control method between the conventional EPCP method and the newly proposed EPCR method. The results demonstrate that the new EPCR method improves both the thermal comfort of indoor air and the energy efficiency.

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  • Lim, Dae Kyu & Ahn, Byoung Ha & Jeong, Ji Hwan, 2018. "Method to control an air conditioner by directly measuring the relative humidity of indoor air to improve the comfort and energy efficiency," Applied Energy, Elsevier, vol. 215(C), pages 290-299.
    • Handle: RePEc:eee:appene:v:215:y:2018:i:c:p:290-299
    DOI: 10.1016/j.apenergy.2018.02.004
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    1. Wang, Shengwei & Tang, Rui, 2017. "Supply-based feedback control strategy of air-conditioning systems for direct load control of buildings responding to urgent requests of smart grids," Applied Energy, Elsevier, vol. 201(C), pages 419-432.
    2. Song, Mengjie & Deng, Shiming & Dang, Chaobin & Mao, Ning & Wang, Zhihua, 2018. "Review on improvement for air source heat pump units during frosting and defrosting," Applied Energy, Elsevier, vol. 211(C), pages 1150-1170.
    3. Wang, Weimin & Katipamula, Srinivas & Ngo, Hung & Underhill, Ronald & Taasevigen, Danny & Lutes, Robert, 2015. "Field evaluation of advanced controls for the retrofit of packaged air conditioners and heat pumps," Applied Energy, Elsevier, vol. 154(C), pages 344-351.
    4. Hu, Maomao & Xiao, Fu & Wang, Lingshi, 2017. "Investigation of demand response potentials of residential air conditioners in smart grids using grey-box room thermal model," Applied Energy, Elsevier, vol. 207(C), pages 324-335.
    5. Xu, Peng & Ma, Xiaoli & Zhao, Xudong & Fancey, Kevin, 2017. "Experimental investigation of a super performance dew point air cooler," Applied Energy, Elsevier, vol. 203(C), pages 761-777.
    6. Tassou, S.A. & Marquand, C.J. & Wilson, D.R., 1983. "Comparison of the performance of capacity controlled and conventional on/off controlled heat pumps," Applied Energy, Elsevier, vol. 14(4), pages 241-256.
    7. Mei, Jun & Xia, Xiaohua, 2017. "Energy-efficient predictive control of indoor thermal comfort and air quality in a direct expansion air conditioning system," Applied Energy, Elsevier, vol. 195(C), pages 439-452.
    8. Jradi, M. & Riffat, S., 2014. "Experimental and numerical investigation of a dew-point cooling system for thermal comfort in buildings," Applied Energy, Elsevier, vol. 132(C), pages 524-535.
    9. Keniar, Khoudor & Ghali, Kamel & Ghaddar, Nesreen, 2015. "Study of solar regenerated membrane desiccant system to control humidity and decrease energy consumption in office spaces," Applied Energy, Elsevier, vol. 138(C), pages 121-132.
    10. Park, Young Sung & Jeong, Ji Hwan & Ahn, Byoung Ha, 2014. "Heat pump control method based on direct measurement of evaporation pressure to improve energy efficiency and indoor air temperature stability at a low cooling load condition," Applied Energy, Elsevier, vol. 132(C), pages 99-107.
    11. Waheed, M.A. & Oni, A.O. & Adejuyigbe, S.B. & Adewumi, B.A. & Fadare, D.A., 2014. "Performance enhancement of vapor recompression heat pump," Applied Energy, Elsevier, vol. 114(C), pages 69-79.
    12. Li, Ning & Xia, Liang & Shiming, Deng & Xu, Xiangguo & Chan, Ming-Yin, 2012. "Dynamic modeling and control of a direct expansion air conditioning system using artificial neural network," Applied Energy, Elsevier, vol. 91(1), pages 290-300.
    13. Yan, Huaxia & Xia, Yudong & Deng, Shiming, 2017. "Simulation study on a three-evaporator air conditioning system for simultaneous indoor air temperature and humidity control," Applied Energy, Elsevier, vol. 207(C), pages 294-304.
    14. O’Connor, Dominic & Calautit, John Kaiser & Hughes, Ben Richard, 2016. "A novel design of a desiccant rotary wheel for passive ventilation applications," Applied Energy, Elsevier, vol. 179(C), pages 99-109.
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