PERFORMANCE CHARACTERISTICS OF A SIMULTANEOUS HEATING AND COOLING HEAT PUMP IN THE HEAT RECOVERY MODEPERFORMANCE CHARACTERISTICS OF A SIMULTANEOUS HEATING AND COOLING HEAT PUMP IN THE HEAT RECOVERY MODE
- Other Titles
- PERFORMANCE CHARACTERISTICS OF A SIMULTANEOUS HEATING AND COOLING HEAT PUMP IN THE HEAT RECOVERY MODE
- Authors
- JONGMIN CHOI; HYUN JOON CHOUNG; YOUNGJU JOO; HOON KANG; 김용찬
- Issue Date
- 2010
- Publisher
- 대한설비공학회
- Keywords
- Simultaneous heating and cooling; heat pump; heat recovery; COP
- Citation
- International Journal of Air-Conditioning and Refrigeration, v.18, no.3, pp.237 - 245
- Indexed
- KCI
- Journal Title
- International Journal of Air-Conditioning and Refrigeration
- Volume
- 18
- Number
- 3
- Start Page
- 237
- End Page
- 245
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/118192
- ISSN
- 2010-1325
- Abstract
- The cooling load in winter is significant in buildings and hotels because of the usage of office equipments and the high efficiency of wall insulation. Hence, the development of a multi-heat pump that can cover heating and cooling simultaneously for each indoor unit is required. In this study, the performance of a simultaneous heating and cooling heat pump was investigated in the heat recovery mode (HR mode). The system adopted a variable speed compressor using R-410A with four indoor units and one outdoor unit. In the HR mode, the capacity and COP were improved as compared with those in the cooling or heating mode because the waste heat in the outdoor unit was utilized as useful heat in the indoor units. However, energy imbalance between heating and cooling capacities of each indoor unit was observed in the 2H–1C HR mode. Therefore, the performance of the system in the 2H–1C HR mode was enhanced by controlling refrigerant flow rate through the outdoor unit.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.