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Cooling energy simulation and analysis of an intermittent ventilation strategy under different climates

Author

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  • Kabanshi, Alan
  • Ameen, Arman
  • Hayati, Abolfazl
  • Yang, Bin

Abstract

Energy use on heating, ventilation and air conditioning (HVAC) accounts for about 50% of building energy use. To have a sustainable built environment, energy efficient ventilation systems that deliver good indoor environmental quality are needed. This study evaluates the cooling energy saving potential of a newly proposed ventilation system called Intermittent Air Jet Strategy (IAJS) and compares its performance against a mixing ventilation (MV) system in a classroom located in three cities with different climates, Singapore with ‘hot and humid’, Ahvaz with ‘hot and dry’ and Lisbon with “moderate” climate. The results show a significant reduction of cooling energy need and flexibility in control strategies with IAJS as a primary system in hot and humid climates like Singapore. Hot and dry climate with short cool periods like Ahvaz show possible application and considerable energy savings with IAJS as a primary system under optimized variable setpoints, but moderate climates have an increased risk of occupant discomfort likely due to increased draft especially during the cool season. Thus, IAJS as a secondary system that operates only during cooling season may be conducive for moderate climates like Lisbon. Additionally, the results show that supply fan energy savings can also be realised if well implemented.

Suggested Citation

  • Kabanshi, Alan & Ameen, Arman & Hayati, Abolfazl & Yang, Bin, 2018. "Cooling energy simulation and analysis of an intermittent ventilation strategy under different climates," Energy, Elsevier, vol. 156(C), pages 84-94.
    • Handle: RePEc:eee:energy:v:156:y:2018:i:c:p:84-94
    DOI: 10.1016/j.energy.2018.05.093
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    Citations

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    Cited by:

    1. Seungtaek Lee & Wai Oswald Chong & Jui-Sheng Chou, 2020. "Examining the Relationships between Stationary Occupancy and Building Energy Loads in US Educational Buildings–Case Study," Sustainability, MDPI, vol. 12(3), pages 1-13, January.
    2. Cui, X. & Islam, M.R. & Chua, K.J., 2019. "Experimental study and energy saving potential analysis of a hybrid air treatment cooling system in tropical climates," Energy, Elsevier, vol. 172(C), pages 1016-1026.
    3. Ntumba Marc-Alain Mutombo & Bubele Papy Numbi, 2022. "The Development of ARIMA Models for the Clear Sky Beam and Diffuse Optical Depths for HVAC Systems Design Using RTSM: A Case Study of the Umlazi Township Area, South Africa," Sustainability, MDPI, vol. 14(6), pages 1-16, March.
    4. María José Bastante-Ceca & Alberto Cerezo-Narváez & José-María Piñero-Vilela & Andrés Pastor-Fernández, 2019. "Determination of the Insulation Solution that Leads to Lower CO 2 Emissions during the Construction Phase of a Building," Energies, MDPI, vol. 12(12), pages 1-39, June.
    5. Wang, Cheng & Guo, Xiaofeng & Zhu, Ye, 2019. "Energy saving with Optic-Variable Wall for stable air temperature control," Energy, Elsevier, vol. 173(C), pages 38-47.

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