Performance evaluation of solar air heaters having v-down discrete rib roughness on the absorber plate

Energy

Volumn 35, Issue 1, 2010, Pages 398-409

  Karwa, Rajendra ^a   Chauhan, Kalpana ^a  

^a JAI NARAIN VYAS UNIVERSITY   (India)

Author keywords

Effective efficiency; Roughened duct solar air heater; V down discrete rib roughness

Indexed keywords

AIR PREHEATERS; DUCTS; EFFICIENCY; FLOW RATE; HEATING EQUIPMENT; MASS TRANSFER; SOLAR EQUIPMENT;

AIR MASS FLOW RATE; DESIGN PARAMETERS; EFFECTIVE EFFICIENCIES; PERFORMANCE EVALUATIONS; RECTANGULAR CROSS-SECTIONS; RIB ROUGHNESS; SOLAR AIR HEATER; THERMAL EFFICIENCY;

SOLAR HEATING;

AIR MASS; AIRFLOW; EFFICIENCY MEASUREMENT; HEATING; NUMERICAL MODEL; PERFORMANCE ASSESSMENT; PHOTOVOLTAIC SYSTEM;

EID: 70749109606     PISSN: 03605442     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.energy.2009.10.007     Document Type: Article

References (20)

1. Gupta D., Solanki S.C., and Saini J.S. Thermohydraulic performance of solar air heaters with roughened absorber plates. Sol Energy 61 1 (1997) 33-42
2. Karwa R., Solanki S.C., and Saini J.S. Thermo-hydraulic performance of solar air heaters having integral chamfered rib roughness on absorber plates. Energy 26 (2001) 161-176
3. Layek A., Saini J.S., and Solanki S.C. Second law optimization of a solar air heater having chamfered rib-groove roughness on absorber plate. Renew Energy 32 12 (2007) 1967-1980
4. Mittal M.K., Varun S.R.P., and Singal S.K. Effective efficiency of solar air heaters having different types of roughness elements on the absorber plate. Energy 32 5 (2007) 739-745
5. Gupta M.K., and Kaushik S.C. Performance evaluation of solar air heater for various artificial roughness geometries based on energy, effective and exergy efficiencies. Renew Energy 34 3 (2009) 465-476
6. Karwa R., Bairwa R.D., Jain B.P., and Karwa N. Effects of rib angle and discretization on heat transfer and friction in an asymmetrically heated rectangular duct. J Enhanced Heat Transfer 12 4 (2005) 343-355
7. Karwa R., Karwa N., Misra R., and Agarwal P.C. Effect of flow maldistribution on thermal performance of a solar air heater array with subcollectors in parallel. Energy 32 (2007) 1260-1270
8. Klein S.A. Calculation of flat-plate collector loss coefficients. Sol Energy 17 (1975) 79-80
9. Swinbank W.C. Long-wave radiation from clear skies. Q J Roy Meteor. Soc 89 (1963) 339
10. Nowak H. The sky temperature in net radiant heat loss calculations from low-sloped roofs. Infrared Phys 29 2-4 (1989) 231-232
11. Buchberg H., Catton I., and Edwards D.K. Natural convection in enclosed spaces-a review of application to solar energy collection. J Heat Transfer (1976) 182-188
12. Niles P.W., Carnegie E.J., Pohl J.G., and Cherne J.M. Design and performance of an air collector for industrial crop dehydration. Sol Energy 20 (1978) 19-23
13. Ebadian M.A., and Dong Z.F. Forced convection, internal flow in ducts. In: Rohsenow W.M., Hartnett J.P., and Cho Y.I. (Eds). Handbook of heat transfer (1998), McGraw-Hill, New York [Chapter 5]
14. Hollands K.G.T., and Shewen E.C. Optimization of flow passage geometry for air-heating, plate-type solar collectors. J Sol Energy Eng 103 (1981) 323-330
15. Bhatti M.S., and Shah R.K. Turbulent and transition flow convective heat transfer. In: Kakac S., Shah R.K., and Aung W. (Eds). Handbook of single-phase convective heat transfer (1987), Wiley, New York [Chapter 4]
16. Nikuradse J. Laws of flow in rough pipes (November 1950), NACA Technical Memorandum 1292
17. Dippery D.F., and Sabersky R.H. Heat and momentum transfer in smooth and rough tubes at various Prandtl numbers. Int J Heat Mass Transfer 6 (1963) 329-353
18. Cortes A., and Piacentini R. Improvement of the efficiency of a bare solar collector by means of turbulence promoters. Appl Energy 36 (1990) 253-261
19. Holman J.P. Heat transfer. 7th ed. (1990), McGraw-Hill Book Co., New York
20. Karwa R., Garg S.N., and Arya A.K. Thermo-hydraulic performance of a solar air heater with n-subcollectors in series and parallel configuration. Energy 27 (2002) 807-812