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

Tzu-Yang Hu, Chun-Kuei Chen, Wei-Chieh Hu, Ta-Hui Lin, Feng-Yi Lin, Chung-Chih Cheng, Tzu-Ching Su and Pei-Yu Yu
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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
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

Energies, 2022, vol. 15, issue 3, 1-16

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.

Keywords: energy saving; air conditioning; control strategy; electricity consumption (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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