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Impact of Hybrid Ventilation Strategies in Energy Savings of Buildings: In Regard to Mixed-Humid Climate Regions

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  • Kyung-Yong Park

    (Department of Architecture and Architectural Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea)

  • Deok-Oh Woo

    (College of Engineering, Lawrence Technological University, 21000 W 10 Mile Rd., Southfield, MI 48075, USA)

  • Seung-Bok Leigh

    (Department of Architecture and Architectural Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea)

  • Lars Junghans

    (A.Alfred Taubman College of Architecture and Urban Planning, University of Michigan, 2000 Bonisteel Blvd, Ann Arbor, MI 48109, USA)

Abstract

It has been identified that improving building energy efficiency is an effective method to reduce greenhouse gas (GHG) emissions. Although standards have been established to satisfy a building’s minimum energy demand while ensuring the comfort of its residents, they are difficult to implement in mixed-humid regions. This study proposes a hybrid ventilation strategy that can comprehensively reduce cooling, heating, and ventilation energy in mixed-humid climate regions to significantly decrease the primary energy demand and reduce the impact of buildings on the environment. This study evaluated the changes in energy saving potential and thermal comfort according to the extension of the natural ventilation period and passive strategies, such as decentralized ventilation. Changes in indoor air temperature, operative temperature, and PMV for each strategy were analyzed. As a result, extending the natural ventilation and the decentralized ventilation strategies can save 32% and 34% of the building’s energy, respectively. Considering that electricity is the main energy source for cooling in Korea, the extension of the natural ventilation period was judged to be the best approach from the perspective of primary energy demand. The results can be used to predict changes in building energy demand and thermal comfort and select an appropriate ventilation strategy based on occupant information obtained using Internet of Things.

Suggested Citation

  • Kyung-Yong Park & Deok-Oh Woo & Seung-Bok Leigh & Lars Junghans, 2022. "Impact of Hybrid Ventilation Strategies in Energy Savings of Buildings: In Regard to Mixed-Humid Climate Regions," Energies, MDPI, vol. 15(6), pages 1-20, March.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:6:p:1960-:d:766271
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    References listed on IDEAS

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    1. Kafle, Sagar & Parajuli, Ranjan & Bhattarai, Sujala & Euh, Seung Hee & Kim, Dae Hyun, 2017. "A review on energy systems and GHG emissions reduction plan and policy of the Republic of Korea: Past, present, and future," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 1123-1130.
    2. Schnieders, Jurgen & Hermelink, Andreas, 2006. "CEPHEUS results: measurements and occupants' satisfaction provide evidence for Passive Houses being an option for sustainable building," Energy Policy, Elsevier, vol. 34(2), pages 151-171, January.
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    Cited by:

    1. Magdalena Baborska – Narożny & Maria Kostka, 2022. "Seasonal Air Quality in Bedrooms with Natural, Mechanical or Hybrid Ventilation Systems and Varied Window Opening Behavior-Field Measurement Results," Energies, MDPI, vol. 15(24), pages 1-17, December.

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