Influence of channel depth on the performance of solar air heaters

Energy

Volumn 35, Issue 10, 2010, Pages 4201-4207

  Sun, Wei ^a   Ji, Jie ^a   He, Wei ^a  

^a UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA   (China)

Author keywords

CFD simulation; Channel depth; Exergy; Heat transfer; Solar air heater

Indexed keywords

AIR PREHEATERS; COMPUTER SIMULATION; EXERGY; HEAT TRANSFER; HEATING EQUIPMENT; SOLAR EQUIPMENT; SOLAR HEATING; TURBULENCE MODELS;

ABSORBER PLATES; AIR FLOW; CFD SIMULATIONS; CHANNEL DEPTH; COMPUTATIONAL FLUID DYNAMICS SIMULATIONS; CONVECTIVE HEAT; DEPTH RATIO; ENERGY GAIN; LAMINAR MODEL; OPTIMAL CHANNELS; PRINCIPAL VARIABLES; SECOND LAWS OF THERMODYNAMICS; SELECTIVE COATINGS; SOLAR AIR HEATER; TEMPERATURE FIELD; TWO CHANNEL;

COMPUTATIONAL FLUID DYNAMICS;

COMPUTATIONAL FLUID DYNAMICS; DESIGN; EXERGY; HEAT TRANSFER; NUMERICAL MODEL; SOLAR POWER; THERMODYNAMICS; TURBULENCE;

EID: 77956176866     PISSN: 03605442     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.energy.2010.07.006     Document Type: Article

References (19)

1. Alfeld K. Second law optimization of flat-plate solar air heaters. Sol Energ 1998, 41:127-132.
2. Alfeld K., Leiner W., Fiebig M. Second law optimization of flat-plate solar air heaters, part 2: results of optimization and analysis of sensibility to variations of operating conditions. Solar Energy 1998, 41:309-317.
3. Hegazy A.A. Optimum channel geometry for solar air heaters of conventional design and constant flow operation. Energy Convers Mgmt 1999, 40:757-774.
4. Yeh H.M., Ho C.D., Hou J.Z. The improvement of collector efficiency in solar air heaters by simultaneously air flow over and under the absorbing plate. Energy 1999, 24:857-871.
5. Forson F.K., Nazha M.A.A., Rajakaruna H. Experimental and simulation studies on a single pass, double duct solar air heater. Energy Convers Mgmt 2003, 44:1209-1227.
6. Duffle J.A., Beckman W.A. Solar engineering of thermal processes 1980, John Wiley, New York.
7. Kays W.M., Crawford M.E. Convective heat and mass transfer 1993, McGraw-Hill, New York.
8. Kumar S., Saini R.P. CFD based performance analysis of a solar heater duct provided with artificial roughness. Renew Energ 2009, 34:1285-1291.
9. Gan G. A parametric study of Trombe walls for passive cooling of buildings. Energ Builds 1998, 27:36-43.
10. Gan G. Effect of air gap on the performance of building-integrated photovoltaics. Energy 2009, 34:913-921.
11. Davidson L. Calculation of the turbulent buoyancy-driven flow in a rectangular cavity using an efficient solver and two different low Reynolds number k-ε model. Numer Heat Transfer 1990, 18:129-147.
12. Davidson L. Second-order corrections of the k-ε model to account for non-isotropic effects due to buoyancy. Int J Heat Mass Transfer 1990, 33:2599-2608.
13. Liu F., Wen J.X. Development and validation of an advanced turbulence model for buoyancy driven flows in enclosures. Int J Heat Mass Transfer 1999, 42:3967-3981.
14. Wilcox D.C. Simulation of transition with a two-equation turbulence model. AIAA J 1994, 32:247-254.
15. Sharif M.A.R., Liu W. Numerical study of turbulent natural convection in side-heated square cavity various angles of inclination. Numer Heat Transfer Part A 2003, 43:693-716.
16. FLUENT 6.3 user's guide 2006, Fluent Inc.
17. Petukhov B.S. Heat transfer and friction in turbulent pipe flow with variable variable physical properties. Advances in heat transfer 1970, vol. 6:503-504. Academic Press, New York. T.F. Irvine, J.P. Hartnett (Eds.).
18. Betts P.L., Bokhari L.H. Experiments on natural convection of air in a tall cavity. Proceedings of the Fifth ERCOFTAC/IAHR workshop on refined flow modelling 1996, vol. V.. Electricité de France, Chatou, France.
19. Pottler K., Sippel C.M., Beck A., Fricke J. Optimized finned absorber geometries for solar air heating collectors. Solar Energy 1999, 67:35-52.