Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China

Mao, Ning; Hao, Jingyu; Cui, Borui; Li, Yuxing; Song, Mengjie; Xu, Yingjie; Deng, Shiming

doi:10.1016/j.energy.2018.06.211

Title: Energy performance of a bedroom task/ambient air conditioning (TAC) system applied in different climate zones of China

Journal Article · Fri Jun 29 00:00:00 EDT 2018 · Energy (Oxford)

DOI:https://doi.org/10.1016/j.energy.2018.06.211· OSTI ID:1474605

Mao, Ning ^[1]; Hao, Jingyu ^[2];

^[3]; Li, Yuxing ^[4]; Song, Mengjie ^[5]; Xu, Yingjie ^[6]; Deng, Shiming ^[7]

China University of Petroleum, Qingdao, Shandong (China). Department of Gas Engineering, College of Pipeline and Civil Engineering; Shandong Provincial Key Laboratory of Oil & Gas Storage and Transportation Safety, Qingdao, Shandong (China)
China University of Petroleum, Qingdao, Shandong (China). Department of Gas Engineering, College of Pipeline and Civil Engineering
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Shandong Provincial Key Laboratory of Oil & Gas Storage and Transportation Safety, Qingdao, Shandong (China)
The University of Tokyo, Chiba (Japan). Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences
Zhejiang University of Technology, Hangzhou (China). Institute of Process Equipment and Control Engineering
The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR (China). Department of Building Services Engineering

Here, task/ambient air conditioning (TAC) system applied to bedrooms has been investigated and its energy efficient performance reported. To promote the application of bedroom TAC to a larger region, a numerical study was carried out on a bedroom TAC system applied in five different climate zones. To simplify the numerical study, response surface methodology (RSM) was used to predict operating power of TAC based on CFD results. It's found that the daily energy consumption in the typical day was from 0 kWh in Kunming to 1.27 kWh in Shanghai, the averaged daily energy consumption varied from 0.47 kWh in June to 0.56 kWh in August for Guangzhou, and the total energy consumption in summer ranged from 0 kWh in Kunming to 58.33 kWh in Guangzhou. Meanwhile, the operating time of the TAC were also different between these five cities. In order to save energy, different set points of t_oz (average air temperature in the occupied zone) were investigated. Additionally, it's found that increasing the t_oz from 24 to 25 °C can reduce energy consumption by about 23.42% in Shanghai to 36.23% in Beijing. Besides, the energy saving potential using two operating modes were compared: variable air flow rate and variable air temperature.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1474605

Journal Information:: Energy (Oxford), Vol. 159, Issue C; ISSN 0360-5442

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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