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http://dx.doi.org/10.6110/KJACR.2011.23.8.571

Heating Performance Evaluation of the VRF Heat Pump System with Refrigerant Heating Cycle for the Extreme Cold Region  

Lee, Sang-Hun (CAC R&D Laboratory, LG Electronics)
Choi, Song (AE R&D Laboratory, LG Electronics)
Kim, Byeng-Soon (CAC R&D Laboratory, LG Electronics)
Lee, Jae-Keun (Department of Mechanical Engineering, Pusan National University)
Lee, Kang-Ho (Department of Mechanical Engineering, Pusan National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.23, no.8, 2011 , pp. 571-579 More about this Journal
Abstract
Heat pump systems for commercial building with variable refrigerant flow(VRF) are expanding a market due to high energy efficiency, lower maintenance cost and easy installation comparing with the conventional heat pump with the constant refrigerant flow. In general, heat pump systems degrade the energy efficiency in the extremely low temperature regions. In this study, VRF heat pump system with refrigerant heating is experimentally investigated to overcome the low heating performance in the extremely low temperature regions. VRF heat pump system with refrigerant heating is found out the sufficient heating performance in the -25 degree temperature condition comparing with the conventional heat pump system and is obtained more than 2,500 kPa high pressure in the evaporator at low temperature.
Keywords
VRF(Variable Refrigerant Flow); Refrigerant heating; Building Multi; R410A; BLDC Inverter; Burner; Heat source;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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