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A Study on Control Strategy for Air Conditioning of Western Exposed Rooms in Subtropical Region

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  • Tzu-Yang Hu

    (Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan)

  • Chun-Kuei Chen

    (Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan)

  • Wei-Chieh Hu

    (Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan)

  • Ta-Hui Lin

    (Department of Mechanical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
    Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan)

  • Feng-Yi Lin

    (Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 310401, Taiwan)

  • Chung-Chih Cheng

    (Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 310401, Taiwan)

  • Tzu-Ching Su

    (Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 310401, Taiwan)

  • Pei-Yu Yu

    (Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 310401, Taiwan)

Abstract

Recently, energy saving has been a major issue in all aspects. In buildings, air conditioning is one major part of power consumption. In this study, we examined the effect of an intermittent control strategy for air conditioning on energy saving in western-exposed rooms under subtropical weather conditions. The strategy applied periodic deactivation and reactivation to the air conditioners. Room temperatures, power consumption, and readings from sensors of air conditioners of two identical rooms were monitored and analyzed. For indoor temperatures, we found that the deactivation of the air conditioner for 15 min resulted in temperature peaks that were 4 to 5 °C higher than the control room. The reactivation of the air conditioner was able to cool down the room within 10 min based on the built-in sensor. However, due to the location and resolution of the sensor, the overall temperature from the four temperature and humidity sensors was still higher than the target setting, which may cause thermal discomfort. For power consumption, the strategy led to power peaks while reactivating, but the summation was 2.9% lower.

Suggested Citation

  • Tzu-Yang Hu & Chun-Kuei Chen & Wei-Chieh Hu & Ta-Hui Lin & Feng-Yi Lin & Chung-Chih Cheng & Tzu-Ching Su & Pei-Yu Yu, 2022. "A Study on Control Strategy for Air Conditioning of Western Exposed Rooms in Subtropical Region," Energies, MDPI, vol. 15(3), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:731-:d:728614
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    References listed on IDEAS

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    1. Randazzo, Teresa & De Cian, Enrica & Mistry, Malcolm N., 2020. "Air conditioning and electricity expenditure: The role of climate in temperate countries," Economic Modelling, Elsevier, vol. 90(C), pages 273-287.
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    Cited by:

    1. Tzu-Yang Hu & Chun-Kuei Chen & Feng-Yi Lin & Ta-Hui Lin, 2023. "Influence of Roller Blinds Shading Strategy on West and South Facing Buildings," Energies, MDPI, vol. 16(2), pages 1-17, January.

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