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Study on the Control Effect of Fan Coils Considering Both Room Temperature and Humidity

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Proceedings of the 5th International Conference on Building Energy and Environment (COBEE 2022)

Part of the book series: Environmental Science and Engineering ((ESE))

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Abstract

Even though the control of the fan-coil system has been widely investigated, most of them only focus on the effect of room temperature control but ignore the effect of humidity control. However, both temperature and humidity are important to thermal comfort. The fan-coil is only based on temperature conditions to control the on/off of the water valve and the speed of the fan, and the indoor thermal comfort is difficult to meet the needs of the human body. In response to this problem, a simulation tool based on the calculation of the temperature and humidity of the fan-coil room was established in this work. It could realize the short-step dynamic calculation of both room temperature and humidity with different enclosure structures, internal disturbances, and outdoor meteorological conditions. In order to study the control effect of the fan-coil on the room temperature and humidity after the equipment was selected, examples of different climate zones were set up in the simulation. The simulation results showed that the temperature control strategy could meet the indoor temperature and humidity control requirements under most operating conditions. However, with outdoor low temperature and high humidity conditions, the indoor temperature was too low to reach the setting value of the water valve opening, and the humidity cannot be controlled by the fan coil. In addition, the temperature and humidity control effects of the constant fan speed and the variable fan speed control strategies were also compared. The results showed that the variable fan speed control strategy can better control indoor temperature and humidity. However, when the humidity ratio of air is too much, the temperature will be within a reasonable range but the humidity will exceed the standard.

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Author information

Authors and Affiliations

  1. Beijing Key Laboratory of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

    Xiaoxiao Ding, Chuang Wang & Jingjing An

  2. Beijing Advanced Innovation Center for Future Urban Design, Engineering and Architecture, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

    Chuang Wang & Jingjing An

  3. Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing, 100124, China

    Weirong Zhang

Authors
  1. Xiaoxiao Ding
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  2. Chuang Wang
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  3. Weirong Zhang
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  4. Jingjing An
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Corresponding author

Correspondence to Chuang Wang .

Editor information

Editors and Affiliations

  1. Centre for Zero Energy Building Studies, Concordia University, Montreal, QC, Canada

    Liangzhu Leon Wang

  2. Centre for Zero Energy Building Studies, Concordia University, Montreal, QC, Canada

    Hua Ge

  3. Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA

    Zhiqiang John Zhai

  4. Department of Civil and Building Engineering, Université de Sherbrooke, Sherbrooke, QC, Canada

    Dahai Qi

  5. Centre for Zero Energy Building Studies, Concordia University, Montreal, QC, Canada

    Mohamed Ouf

  6. School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China

    Chanjuan Sun

  7. School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi, China

    Dengjia Wang

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Ding, X., Wang, C., Zhang, W., An, J. (2023). Study on the Control Effect of Fan Coils Considering Both Room Temperature and Humidity. In: Wang, L.L., et al. Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022. Environmental Science and Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-9822-5_262

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  • DOI: https://doi.org/10.1007/978-981-19-9822-5_262

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-19-9821-8

  • Online ISBN: 978-981-19-9822-5

  • eBook Packages: EngineeringEngineering (R0)

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