Utilizing circular jet impingement to enhance thermal performance of solar air heater

被引：80

作者：

Singh, Satyender ^{[1
]}

Chaurasiya, Shailendra Kumar ^{[1
]}

Negi, Bharat Singh ^{[1
]}

Chander, Subhash ^{[1
]}

Nems, Magdalena ^{[2
]}

Negi, Sushant ^{[3
]}

机构：

[1] Dr BR Ambedkar Natl Inst Technol Jalandhar, Dept Mech Engn, CFD & Heat Transfer Res Grp, Jalandhar 144011, Punjab, India

[2] Wroclaw Univ Sci & Technol, Fac Mech & Power Engn, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland

[3] Natl Inst Technol Silchar, Dept Mech Engn, Silchar 788010, Assam, India

来源：

RENEWABLE ENERGY | 2020年 / 154卷

关键词：

Jet impingement; Serpentine wavy channel; Solar air heater; Thermal efficiency; THERMOHYDRAULIC PERFORMANCE; WIRE MESH; PARALLEL-FLOW; SINGLE-PASS; FINS; FRICTION; BAFFLES; IMPROVEMENT; SIMULATION; EFFICIENCY;

D O I：

10.1016/j.renene.2020.03.095

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In the present work, the thermal performance of impinging jet double pass solar air heater is investigated experimentally. A corrugated wavy plate consists of circular holes, each of 7.66 mm in diameter on the crest region are used to provide the impinging jets of air that provide 1.4%-0.48% plate perforation. While, the double pass is provided by circulating the air first through the channel formed between back and lower corrugated plates and then through another wavy channel formed between two corrugated plates. To provide thermal backup and increase heat transfer to air, two design configurations are investigated i.e. Design-I without porous media (100% porosity) and Design-II with porous media (95% -98% porosity) in the wavy channel. Moreover, the deep insight on physics of fluid using CFD tool is presented in the extent of this work. It is recommended to operate the present solar air heater designs at the mass flow rate of 0.04 kg/s, bed porosity of 98% and impinging plate perforation of 0.48% to have the best thermal performance. Whereas, the maximum thermal efficiency and thermohydraulic efficiency of 94% and 84% is obtained for Design-I, which is about 7.5% and 19%, respectively high compared to Design- II. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页码：1327 / 1345

页数：19

共 44 条

[1] Performance analysis of solar air heater with jet impingement on corrugated absorber plate
Aboghrara, Alsanossi M.
Baharudin, B. T. H. T.
Alghoul, M. A.
Adam, Nor Mariah
Hairuddin, A. A.
Hasan, Husam A.
[J]. CASE STUDIES IN THERMAL ENGINEERING, 2017, 10 : 111 - 120
[2] Single and double pass solar air heaters with wire mesh as packing bed
Aldabbagh, L. B. Y.
Egelioglu, F.
Ilkan, M.
[J]. ENERGY, 2010, 35 (09) : 3783 - 3787
[3] [Anonymous], 1977, 9377 ASHRAE, P1
[4] Energy and exergy analyses of porous baffles inserted solar air heaters for building applications
Bayrak, Fatih
Oztop, Hakan F.
Hepbasli, Arif
[J]. ENERGY AND BUILDINGS, 2013, 57 : 338 - 345
[5] Performance of jet impingement in unglazed air collectors
Belusko, M.
Saman, W.
Bruno, F.
[J]. SOLAR ENERGY, 2008, 82 (05) : 389 - 398
[6] Development and validation of a hybrid PV/Thermal air based collector model with impinging jets
Brideau, Sebastien A.
Collins, Michael R.
[J]. SOLAR ENERGY, 2014, 102 : 234 - 246
[7] Investigation of the thermohydraulic performance of impinging jet solar air heater
Chauhan, Ranchan
Thakur, N. S.
[J]. ENERGY, 2014, 68 : 255 - 261
[8] EVALUATION OF A JET PLATE SOLAR AIR HEATER
CHOUDHURY, C
GARG, HP
[J]. SOLAR ENERGY, 1991, 46 (04) : 199 - 209
[9] Recyclic double pass packed bed solar air heaters
Dhiman, Prashant
Singh, Satyender
[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2015, 87 : 215 - 227
[10] Thermal and thermohydraulic performance of counter and parallel flow packed bed solar air heaters
Dhiman, Prashant
Thakur, N. S.
Chauhan, S. R.
[J]. RENEWABLE ENERGY, 2012, 46 : 259 - 268

← 1 2 3 4 5 →