Indexed by:
Abstract:
A novel flat plate solar collector with micro-channel heat pipe array (MHPA-FPC) is presented in this paper. Firstly, a preliminary test was conducted to investigate the thermal performance of the MHPA. It has been found that the surface temperature along the length of MHPA can get stable within 2 min. The temperature difference between the evaporator and condenser sections was less than 1 degrees C, which indicates that the MHPA has excellent isothermal ability and quick thermal respond speed. Based on these advantages, the MHPA was applied to the development of a novel solar collector. The performance test was conducted following the Chinese standard GB/T4271-2007, and a linear correlation between the instantaneous efficiency eta and the reduced temperature parameter (T-wi-T-a).I-1 was established. The maximum instantaneous efficiency was found to be 80%, and the slope was -4.72. These values are 11.4% and 21.3% superior to the technical required values of the Chinese national standard. Test results were further compared with 6 groups of 15 samples coming either from either open literature or commercial products. The comparisons indicated that the maximum instantaneous efficiency of the MHPA-FPC surpassed 25% over the average level of those selected samples and better thermal insulation ability was presented by the MHPA-FPC. These results from this study demonstrate that the novel MHPA-FPC is one of the top level solar collectors among the current products. (C) 2013 Elsevier Ltd. All rights reserved.
Keyword:
Reprint Author's Address:
Email:
Source :
APPLIED THERMAL ENGINEERING
ISSN: 1359-4311
Year: 2013
Issue: 2
Volume: 54
Page: 440-449
6 . 4 0 0
JCR@2022
ESI Discipline: ENGINEERING;
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 113
SCOPUS Cited Count: 131
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0