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Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System

Author

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  • Kyungjoo Cho

    (Korea Institute of Civil Engineering & Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, Korea
    Department of Architectural Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea)

  • Dongwoo Cho

    (Korea Institute of Civil Engineering & Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, Korea)

  • Taeyeon Kim

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

Abstract

This study makes a novel attempt to analyse the effect of the bypass control and room control modes on ventilation energy saving in an 84 m 2 housing unit, which is the most frequently constructed unit-type among newly constructed apartment buildings in Korea. A heat recovery ventilation system was installed. The fan power consumption was measured via field experiments and analyses were made for potential energy savings. Experiments to confirm the power-saving effect owing to the application of the room control mode were performed under the heat recovery and bypass modes, using three air flow rates (0.5, 1.0 and 1.5 ACH). Additionally, the annual energy saving based on the application of the mixed mode (both bypass and room control modes) was calculated. The results obtained showed that when the mixed mode was employed, ventilation energy saving up to 10.76%–16.56%, which is greater than that obtained using only the heat recovery mode, was realized. Additionally, compared with all-room-ventilation, 26.69%–61.84% of ventilation energy could be saved if the mixed mode was applied only to the living room.

Suggested Citation

  • Kyungjoo Cho & Dongwoo Cho & Taeyeon Kim, 2020. "Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System," Energies, MDPI, vol. 13(7), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1815-:d:343330
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    References listed on IDEAS

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    1. Zeng, Cheng & Liu, Shuli & Shukla, Ashish, 2017. "A review on the air-to-air heat and mass exchanger technologies for building applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 75(C), pages 753-774.
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    Cited by:

    1. Ewa Zender–Świercz, 2021. "A Review of Heat Recovery in Ventilation," Energies, MDPI, vol. 14(6), pages 1-23, March.

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