Abstract
The heat transfer and enhancement of thermal efficiency of a V-shaped rib solar air heater were numerically investigated. Thermal efficiency has been calculated for a solar air heater with absorber surface having artificial roughness in the form of 30° inclined ribs. Two models have been created by taking pitch of inclined ribs as 15 and 20 mm, respectively, on the upper side of absorber surface. Comparison of results for two different rib pitch parameters 15 and 20 mm and heat transfer result. Numerical calculations were performed for various geometrical parameters of the solar duct and focused on the enhancement of maximum heat transfer rate. The maximum value of efficiency is obtained for the model having 15 mm pitch is 43.8% while for the model with 20 mm, pitch is 40.7%. The average value of efficiency is increased to 4.26% for both models when compared with results for smooth absorber surface. The glazing glass cover temperature and temperature of absorber surface are maximum for Model-I at solar intensity 1180–1250 W/m2 on the time slot 12:30–1:30 h. The exergy analysis shows that exergy value increases with the increase in solar intensity as the time of day for both models. To validate the results obtained through experiments and to analyze flow phenomena above absorber surface, the CFD analysis is done. The temperature difference obtained is 50 K.
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References
M.T. Baissi, A. Brima, K. Aoues, R. Khanniche, N. Moummi, Thermal behavior in a solar air heater channel roughened with delta-shaped vortex generators. Appl. Therm. Eng. 165, 113563 (2020). https://doi.org/10.1016/j.applthermaleng.2019.03.134
K.D. Yadav, R.K. Prasad, Performance analysis of parallel flow flat plate solar air heater having arc shaped wire roughened absorber plate. Renew. Energy Focus 32, 23–44 (2020). https://doi.org/10.1016/j.ref.2019.10.002
D. Wang, J. Liu, Y. Liu, Y. Wang, B. Li, J. Liu, Evaluation of the performance of an improved solar air heater with ‘S’ shaped ribs with gap. Sol. Energy 195, 89–101 (2020). https://doi.org/10.1016/j.solener.2019.11.034
A. Kumar, R.P. Saini, J.S. Saini, Development of correlations for Nusselt number and friction factor for solar air heater with roughened duct having multi v-shaped with gap rib as artificial roughness. Renew. Energy 58, 151–163 (2013). https://doi.org/10.1016/j.renene.2013.03.013
A. Kumar, A. Layek, Nusselt number and fluid flow analysis of solar air heater having transverse circular rib roughness on absorber plate using LCT and computational technique. Thermal Sci. Eng. Prog. 14, 100398 (2019). https://doi.org/10.1016/j.tsep.2019.100398
P.K. Jain, A. Lanjewar, Overview of V-RIB geometries in solar air heater and performance evaluation of a new V-RIB geometry. Renew. Energy 133, 77–90 (2019). https://doi.org/10.1016/j.renene.2018.10.001
R.K. Ravi, R.P. Saini, Experimental investigation on performance of a double pass artificial roughened solar air heater duct having roughness elements of the combination of discrete multi V shaped and staggered ribs. Energy 116, 507–516 (2016). https://doi.org/10.1016/j.energy.2016.09.138
Y.M. Patel, S.V. Jain, V.J. Lakhera, Thermo-hydraulic performance analysis of a solar air heater roughened with reverse NACA profile ribs. Appl. Therm. Eng. 170, 114940 (2020). https://doi.org/10.1016/j.applthermaleng.2020.114940
N.S. Deo, S. Chander, J.S. Saini, Performance analysis of solar air heater duct roughened with multigap V-down ribs combined with staggered ribs. Renew. Energy 91, 484–500 (2016). https://doi.org/10.1016/j.renene.2016.01.067
S. Singh Patel, A. Lanjewar, Experimental and numerical investigation of solar air heater with novel V-rib geometry. J. Energy Storage 21, 750–764 (2019). https://doi.org/10.1016/j.est.2019.01.016
G.K. Poongavanam, K. Panchabikesan, A.J.D. Leo, V. Ramalingam, Experimental investigation on heat transfer augmentation of solar air heater using shot blasted V-corrugated absorber plate. Renew. Energy 127, 213–229 (2018). https://doi.org/10.1016/j.renene.2018.04.056
A. Kumar, A. Layek, Energetic and exergetic performance evaluation of solar air heater with twisted rib roughness on absorber plate. J. Clean. Prod. 232, 617–628 (2019). https://doi.org/10.1016/j.jclepro.2019.05.363
M.K. Sahu, R.K. Prasad, Exergy based performance evaluation of solar air heater with arc-shaped wire roughened absorber plate. Renew. Energy 96, 233–243 (2016). https://doi.org/10.1016/j.renene.2016.04.083
S. Kumar, R.P. Saini, CFD based performance analysis of a solar air heater duct provided with artificial roughness. Renewable Energy 34, 1285–1291 (2009). https://doi.org/10.1016/j.renene.2008.09.015
I. Singh, S. Vardhan, S. Singh, A. Singh, Experimental and CFD analysis of solar air heater duct roughened with multiple broken transverse ribs: a comparative study. Sol. Energy 188, 519–532 (2019). https://doi.org/10.1016/j.solener.2019.06.022
A. Boulemtafes-Boukadoum, C. Abid, A. Benzaoui, 3D Numerical study of the effect of aspect ratio on mixed convection air flow in upward solar air heater. Int. J. Heat Fluid Flow 108570 (2020). https://doi.org/10.1016/j.ijheatfluidflow.2020.108570
V.B. Gawande, A.S. Dhoble, D.B. Zodpe, S. Chamoli, Experimental and CFD investigation of convection heat transfer in solar air heater with reverse L-shaped ribs. Sol. Energy 131, 275–295 (2016). https://doi.org/10.1016/j.solener.2016.02.040
R. Kumar, S. Kumar Verma, V. Kumar Sharma, Performance enhancement analysis of triangular solar air heater coated with nanomaterial embedded in black paint. Mater. Today: Proc (2020). https://doi.org/10.1016/j.matpr.2020.02.538
M.S. Manjunath, K.V. Karanth, N.Y. Sharma, Numerical analysis of the influence of spherical turbulence generators on heat transfer enhancement of flat plate solar air heater. Energy 121, 616–630 (2017). https://doi.org/10.1016/j.energy.2017.01.032
S. Singh, Thermal performance analysis of semicircular and triangular cross-sectioned duct solar air heaters under external recycle. J. Energy Storage 20, 316–336 (2018). https://doi.org/10.1016/j.est.2018.10.003
R. Kumar, S. Kumar Verma, V. Kumar Sharma, Performance enhancement analysis of triangular solar air heater coated with nanomaterial embedded in black paint. Mater. Today: Proc. (2020). https://doi.org/10.1016/j.matpr.2020.02.538
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Mishra, S.K., Kumar, R., Joshi, R., Kumar, H., Saxena, N. (2021). Experimental Investigation, Exergy Analysis, and CFD Simulation of Solar Air Heater Roughened with Artificial V-Shaped Ribs on Absorber Surface Artificial Roughness on Absorber Plate. In: Baredar, P.V., Tangellapalli, S., Solanki, C.S. (eds) Advances in Clean Energy Technologies . Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-16-0235-1_20
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