First & Second Law Analysis of Solar Air Heater
DOI:
https://doi.org/10.6000/1929-6002.2012.01.01.8Keywords:
Artificial Roughness, Solar Air Heater, Heat Transfer Coefficient, Friction FactorAbstract
In this paper, thermodynamic analysis is performed for different cases of artificial roughness surface on the absorber plates of solar air heater duct. This analysis has been performed by using the correlations for heat transfer coefficient and friction factor developed experimentally for different type of roughness within the investigated range of operating and system parameters. The comparison has been made for different types of roughness on the basis of first law analysis (effective efficiency) and second law analysis (entropy, irreversibility distribution ratio and entropy generation number)
References
Close DJ. Solar air heaters for low and moderate temperature application. Solar Energy 1963; 7: 117-24. http://dx.doi.org/10.1016/0038-092X(63)90037-9 DOI: https://doi.org/10.1016/0038-092X(63)90037-9
Laohalertdecha S, Naphon P, Wongwises S. A review of electrohydrodynamic enhancement of heat transfer. Renew Sustainable Energy Rev 2007; 11: 858-76. http://dx.doi.org/10.1016/j.rser.2005.07.002 DOI: https://doi.org/10.1016/j.rser.2005.07.002
Han JC, Glicksman LR, Rohsenow WM. An investigation of heat transfer and friction for rib-roughened surfaces. Int J Heat Mass Transfer 1978; 21: 1143-56. http://dx.doi.org/10.1016/0017-9310(78)90113-8 DOI: https://doi.org/10.1016/0017-9310(78)90113-8
Han JC, Park JS, Lei CK. Heat transfer enhancement in channel with turbulence promoters. J Eng Gas Turbine Power 1985; 107: 628-35. http://dx.doi.org/10.1115/1.3239782 DOI: https://doi.org/10.1115/1.3239782
Han JC, Zhang YM. High performance heat transfer ducts with parallel broken and V-shaped broken ribs. Int J Heat Mass Transfer 1992; 35: 513-23. http://dx.doi.org/10.1016/0017-9310(92)90286-2 DOI: https://doi.org/10.1016/0017-9310(92)90286-2
Lau SC, McMillin RD, Han JC. Turbulent heat transfer and friction in a square channel with discrete rib and turbulators. J Turbomachinery 1991; 113: 360-66. http://dx.doi.org/10.1115/1.2927884 DOI: https://doi.org/10.1115/1.2927884
Lau SC, McMillin RD, Han JC. Heat transfer characteristics of turbulent flow in a square channel with angled discrete ribs. J Turbomachinery 1991; 113: 367-74. http://dx.doi.org/10.1115/1.2927885 DOI: https://doi.org/10.1115/1.2927885
Hwang J, Liou T. Heat transfer and friction in a low-aspect-ratio rectangular channel with staggered slit-ribbed walls. Int J Rotating Machin 1998; 4: 283-91. http://dx.doi.org/10.1155/S1023621X98000244 DOI: https://doi.org/10.1155/S1023621X98000244
Prasad BN, Saini JS. Effect of artificial roughness on heat transfer and friction factor in a solar air heater. Solar Energy 1980; 41: 555-60. http://dx.doi.org/10.1016/0038-092X(88)90058-8 DOI: https://doi.org/10.1016/0038-092X(88)90058-8
Gupta D, Solanki SC, Saini JS. Heat and fluid flow in rectangular solar air heater ducts having transverse rib roughness on absorber plates. Solar Energy 1993; 51: 31-37. http://dx.doi.org/10.1016/0038-092X(93)90039-Q DOI: https://doi.org/10.1016/0038-092X(93)90039-Q
Saini RP, Saini JS. Heat transfer and friction factor correlations for artificially roughened duct with expanded metal mesh as roughness element. Int J Heat Mass Transfer 1997; 40: 973-86. http://dx.doi.org/10.1016/0017-9310(96)00019-1 DOI: https://doi.org/10.1016/0017-9310(96)00019-1
Karwa R, Solanki SC, Saini JS. Heat transfer co-efficient and friction factor correlations for the transitional flow regime in rib-roughened rectangular ducts. Int J Heat Mass Transfer 1999; 42: 1597-15. http://dx.doi.org/10.1016/S0017-9310(98)00252-X DOI: https://doi.org/10.1016/S0017-9310(98)00252-X
Bhagoria JL, Saini JS, Solanki SC. Heat transfer coefficient and friction factor correlations for rectangular solar air heater duct having transverse wedge shaped rib roughness on the absorber plate. Renewable Energy 2002; 25: 341-69. http://dx.doi.org/10.1016/S0960-1481(01)00057-X DOI: https://doi.org/10.1016/S0960-1481(01)00057-X
Aharwal KR, Gandhi BK, Saini JS. Experimental investigation of heat transfer enhancement due to a gap in an inclined continuous rib arrangement in a rectangular duct of solar air heater. Renewable Energy 2008; 33: 585-96. http://dx.doi.org/10.1016/j.renene.2007.03.023 DOI: https://doi.org/10.1016/j.renene.2007.03.023
Jaurker AR, Saini JS, Gandhi BK. Heat transfer and friction characteristics of rectangular solar air heater duct using rib-grooved artificial roughness. Solar Energy 2006; 80: 895-907. http://dx.doi.org/10.1016/j.solener.2005.08.006 DOI: https://doi.org/10.1016/j.solener.2005.08.006
Karmare SV, Tikekar AN. Heat transfer and friction factor correlation for artificially roughened duct with metal grit ribs. Int J Heat Mass Transfer 2007; 50: 4342-51. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2007.01.065 DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2007.01.065
Layek A, Saini JS, Solanki SC. Heat transfer and friction characteristics for artificially roughened ducts with compound turbulators. Int J Heat Mass Transfer 2007; 50: 4845-54. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2007.02.042 DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2007.02.042
Layek A, Saini JS, Solanki SC. Second law optimization of a solar air heater having chamfered rib-groove roughness on absorber plate. Renewable Energy 2007; 32: 1967-80. http://dx.doi.org/10.1016/j.renene.2006.11.005 DOI: https://doi.org/10.1016/j.renene.2006.11.005
Varun, Saini RP, Singal SK. Investigation of thermal performance of solar air heater having roughness elements as a combination of inclined and transverse ribs on the absorber plate. Renewable Energy 2008; 33: 1398-405. http://dx.doi.org/10.1016/j.renene.2007.07.013 DOI: https://doi.org/10.1016/j.renene.2007.07.013
Saini RP, Verma J. Heat transfer and friction factor correlations for a duct having dimple-shape artificial roughness for solar air heater. Energy 2008; 33: 1277-87. http://dx.doi.org/10.1016/j.energy.2008.02.017 DOI: https://doi.org/10.1016/j.energy.2008.02.017
Momin A-ME, Saini JS, Solanki SC. Heat transfer and friction in solar air heater duct with V-shaped rib roughness on absorber plate. Int J Heat Mass Transfer 2002; 45: 3383-96. http://dx.doi.org/10.1016/S0017-9310(02)00046-7 DOI: https://doi.org/10.1016/S0017-9310(02)00046-7
Bejan A. Entropy generation through heat and fluid flow. New York: Wiley-Interscience Publication 1982.
Cortes A, Piacentini R. Improvement of the efficiency of a bare solar collector by means of turbulence promoters. Appl Energy 1990; 36: 253-56. http://dx.doi.org/10.1016/0306-2619(90)90001-T DOI: https://doi.org/10.1016/0306-2619(90)90001-T
Klien SA. Calculation of flat plate loss coefficients. Solar Energy 1975; 17: 79-80. http://dx.doi.org/10.1016/0038-092X(75)90020-1 DOI: https://doi.org/10.1016/0038-092X(75)90020-1
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