| 주 저자 | Sang-Hwan Park |
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| 공동 저자 | Yong-Kwon Kang, Hyo-Lim Park, Jae-Weon Jeong |
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| 소속 | Department of Architectural Engineering, College of Engineering, Hanyang University |
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| Abstract | The purpose of this study is to propose a decoupled air-conditioning system using vacuum-based membrane dehumidifier for a classroom in hot and humid climates. The proposed system consists of an indirect evaporative cooler, a vacuum-based membrane dehumidifier, and an air handling unit. The indirect evaporative cooler pre-cools the outdoor air, and the pre-cooled outdoor air is mixed with recirculating air to reduce energy consumption. The mixed air is completely dehumidified by the vacuum-based membrane dehumidifier. After dehumidification, the air handling unit adjusts the air temperature to the target supply air temperature. In a conventional air handling unit, the air is overcooled by a cooling coil for condensation dehumidification and reheated by a heating coil to reach the target supply air temperature. On the other hand, in the proposed system, the vacuum-based membrane dehumidifier handles most of latent heat load of the inlet air without temperature change, through the isothermal dehumidification process. To investigate the energy-saving potential of the vacuum-based membrane dehumidifier, an energy consumption simulation was conducted between the proposed decoupled system and a reference system in the classroom during the cooling season. The reference system consists of an indirect evaporative cooler and an air handling unit. The indoor thermal loads of the classroom were calculated using TRNSYS 18, and the energy consumption simulations were performed using the Engineering Equation Solver (EES). The simulation results revealed that the proposed decoupled system can reduce energy consumption compared to the reference system in the classroom. The total energy consumption was reduced 15.3 % compared to the reference system due to the absence of the overcooling and reheating energy consumption. |
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| Keyword | Vacuum-based membrane dehumidifier, Indirect evaporative cooler, Isothermal dehumidification, Energy saving, decoupled system |
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| 페이지 | pp. 0~0 |
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| 논문 파일 |
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| 게재일시 |
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| DOI | - |
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| 학회/저널명 | APCBE 2023 |
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| 년도 | 2023 |
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| 추가 문구 | - |
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| 등록 일시 | 2025-06-18 19:05:48 |
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