가스 인젝션을 적용한 전기자동차용 히트펌프의 난방성능 특성에 대한 실험적 연구An Experimental Study on the Heating Performance Characteristics of a Vapor Injection Heat Pump for Electric Vehicles
- Other Titles
- An Experimental Study on the Heating Performance Characteristics of a Vapor Injection Heat Pump for Electric Vehicles
- Authors
- 김동우; 정종호; 김용찬
- Issue Date
- 2014
- Publisher
- 대한설비공학회
- Keywords
- Heat pump(히트펌프); Vapor injection(가스 인젝션); Electric vehicle(전기자동차); Heating(난방)
- Citation
- 설비공학 논문집, v.26, no.7, pp.308 - 314
- Indexed
- KCI
- Journal Title
- 설비공학 논문집
- Volume
- 26
- Number
- 7
- Start Page
- 308
- End Page
- 314
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/100216
- DOI
- 10.6110/KJACR.2014.26.7.308
- ISSN
- 1229-6422
- Abstract
- A heat pump has been considered as a thermal management unit for electric vehicles, including the heating and cooling of the cabin. However, the heat pump shows performance degradation at low outdoor temperatures or high compressor speeds. In this study, a R-134a heat pump for an electric vehicle was designed to improve system efficiency, by applying vapor injection with an internal heat exchanger. The heating performance characteristics of the vapor injection heat pump were analyzed at various compressor speeds and outdoor temperatures. The vapor injection heat pump showed 13.3% COP improvement over the non-injection heat pump, when the heating capacity was fixed at 5.2 kW. In addition, the heating capacity of the vapor injection system increased by 9.6%, as compared to the non-injection system.
- 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.