The entropy generation analysis of a PVT solar collector with internally needle finned serpentine absorber tube

被引：14
作者：
Liu, Lei [1 ]
Shalwan, A. [2 ]
Teng, Junzhou [1 ]
Liu, Chang [3 ]
Li, Zhixiong [4 ]
机构：
[1] Huaiyin Inst Technol, Fac Elect Informat Engn, Huaian 223003, Jiangsu, Peoples R China
[2] Publ Author Appl Educ & Training, Dept Mfg Engn Technol, Kuwait, Kuwait
[3] Jiangsu Runergy New Energy Technol Co Ltd, Yan Cheng, Peoples R China
[4] Opole Univ Technol, Fac Mech Engn, PL-45758 Opole, Poland
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2023年 / 155卷
关键词：
Needle fin; Entropy generation; PVT solar; Numerical analysis; Nanofluid; ENERGY COLLECTOR; NANOFLUID; PERFORMANCE; MODEL; RIBS; PCM;
D O I：
10.1016/j.enganabound.2023.07.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The entropy generation in two different PVT absorbers with and without needle fins (WNF and WONF) was calculated by performing a 3 D numerical analysis. The effect of Re (500-2000) and nanoparticle concentration, & phi; (0-1%) on thermal and viscous irreversibilities ( Sthand Sfr) were examined and two configurations of the study were compared. The outputs showed that, Re escalation within the studied range of & phi; decreases Sth (or increases Sfr) almost 8.74% (or 93.88%) and 10.53% (or 94.80%) for WONF and WNF configurations, respectively. In addition, the increase in & phi; from 0% to 1% reduces Sth and Sfr by 26% and 14%, respectively, for both configurations at different Re numbers. Moreover, the use of needle fins escalates Sfr by 49.14%-54.08% and decreases Sth by 63.03%-65.40% over the WONF at Re range of 500-2000. The more intensification of irreversibilities are observed near the channel turns and near the channel inlet.
引用
收藏
页码：1123 / 1130
页数：8
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