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

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<sup>2</sup> housing unit, which is the most frequently constructed unit-type among newly constructed apartment buildings in Korea. A heat recovery v...

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Main Authors: Kyungjoo Cho, Dongwoo Cho, Taeyeon Kim
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/7/1815
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author Kyungjoo Cho
Dongwoo Cho
Taeyeon Kim
author_facet Kyungjoo Cho
Dongwoo Cho
Taeyeon Kim
author_sort Kyungjoo Cho
collection DOAJ
description 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<sup>2</sup> 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.
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spelling doaj.art-67256e6e95874cf5829fbdc87e84938b2023-11-19T21:07:03ZengMDPI AGEnergies1996-10732020-04-01137181510.3390/en13071815Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation SystemKyungjoo Cho0Dongwoo Cho1Taeyeon Kim2Korea Institute of Civil Engineering & Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, KoreaKorea Institute of Civil Engineering & Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 10223, KoreaDepartment of Architectural Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, KoreaThis 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<sup>2</sup> 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.https://www.mdpi.com/1996-1073/13/7/1815HRVSbypassroom controlresidential buildingsenergy savings
spellingShingle Kyungjoo Cho
Dongwoo Cho
Taeyeon Kim
Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System
Energies
HRVS
bypass
room control
residential buildings
energy savings
title Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System
title_full Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System
title_fullStr Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System
title_full_unstemmed Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System
title_short Effect of Bypass Control and Room Control Modes on Fan Energy Savings in a Heat Recovery Ventilation System
title_sort effect of bypass control and room control modes on fan energy savings in a heat recovery ventilation system
topic HRVS
bypass
room control
residential buildings
energy savings
url https://www.mdpi.com/1996-1073/13/7/1815
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AT dongwoocho effectofbypasscontrolandroomcontrolmodesonfanenergysavingsinaheatrecoveryventilationsystem
AT taeyeonkim effectofbypasscontrolandroomcontrolmodesonfanenergysavingsinaheatrecoveryventilationsystem