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karami, Fatemeh, Sabzpooshani, Majid. (1403). Comparative analytical study of thermal and thermo-hydraulic performance in solar air heaters with fins, baffles, porous matrix, and internal recycling. فناوری آموزش, 14(2), 301-320. doi: 10.22061/jcarme.2025.11673.2554
Fatemeh karami; Majid Sabzpooshani. "Comparative analytical study of thermal and thermo-hydraulic performance in solar air heaters with fins, baffles, porous matrix, and internal recycling". فناوری آموزش, 14, 2, 1403, 301-320. doi: 10.22061/jcarme.2025.11673.2554
karami, Fatemeh, Sabzpooshani, Majid. (1403). 'Comparative analytical study of thermal and thermo-hydraulic performance in solar air heaters with fins, baffles, porous matrix, and internal recycling', فناوری آموزش, 14(2), pp. 301-320. doi: 10.22061/jcarme.2025.11673.2554
karami, Fatemeh, Sabzpooshani, Majid. Comparative analytical study of thermal and thermo-hydraulic performance in solar air heaters with fins, baffles, porous matrix, and internal recycling. فناوری آموزش, 1403; 14(2): 301-320. doi: 10.22061/jcarme.2025.11673.2554

Comparative analytical study of thermal and thermo-hydraulic performance in solar air heaters with fins, baffles, porous matrix, and internal recycling

Journal of Computational & Applied Research in Mechanical Engineering (JCARME)
مقاله 9، دوره 14، شماره 2 - شماره پیاپی 28، فروردین 2025، صفحه 301-320    اصل مقاله (1.24 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22061/jcarme.2025.11673.2554
نویسندگان
Fatemeh karami؛ Majid Sabzpooshani*
Faculty of Mechanical Engineering, University of Kashan, Kashan 8731751167, Iran
تاریخ دریافت: 03 بهمن 1403،  تاریخ بازنگری: 10 مرداد 1404،  تاریخ پذیرش: 14 مرداد 1404 
چکیده
This paper presents a comparative analytical investigation of five distinct configurations of single-pass flat plate solar air heaters (SAHs), incorporating fins, baffles, porous matrix, and internal air recycling. A steady-state, one-dimensional mathematical model was developed and solved analytically to evaluate both thermal and thermo-hydraulic performance under various mass flow rates and reflux ratios. The results indicate that using a porous matrix alone results in approximately 14% lower thermal efficiency compared to configurations with fins and baffles. Placing the matrix beneath the absorber plate improved thermal efficiency by about 1.5%, but reduced thermo-hydraulic efficiency by roughly 2.5% compared to placing it above. While combining enhancement techniques does not always yield superior performance, the SAH equipped with fins and baffles alone achieved the highest thermal and thermo-hydraulic efficiencies across most conditions. Furthermore, increasing solar radiation intensity and air mass flow rate enhanced useful heat gain, although higher pressure losses caused the thermo-hydraulic efficiency to decline at elevated flow rates. Overall, this study provides valuable insights into the optimal integration of thermal enhancement methods in solar air heaters for improved energy performance.
کلیدواژه‌ها
Solar air heater؛ Porous Matrix؛ Fin and baffles؛ Upstream and downstream recycles؛ Thermo-hydraulic efficiency
مراجع
[1] A. Ghiami and S. Ghiami, “Comparative study based on energy and exergy analyses of a baffled solar air heater with latent storage collector,” Appl. Therm. Eng., Vol. 133, pp. 797–808, (2018).

[2] A. Ahmadkhani, G. Sadeghi, and H. Safarzadeh, “An in-depth evaluation of matrix, external upstream and downstream recycles on a double pass flat plate solar air heater efficacy,” Therm. Sci. Eng. Prog., Vol. 21, p. 100789, (2021).

[3] S. Singh and P. Dhiman, “Analytical and experimental investigations of packed bed solar air heaters under the collective effect of recycle ratio and fractional mass flow rate,” J. Energy Storage, Vol. 16, pp. 167–186, (2018).

[4] K. Mohammadi and M. Sabzpooshani, “Appraising the performance of a baffled solar air heater with external recycle,” Energy Convers. Manag., Vol. 88, pp. 239–250, (2014).

[5] K. Mohammadi and M. Sabzpooshani, “Comprehensive performance evaluation and parametric studies of single pass solar air heater with fins and baffles attached over the absorber plate,” Energy, Vol. 57, pp. 741–750, (2013).

[6] F. Chabane, N. Moummi, and S. Benramache, “Experimental study of heat transfer and thermal performance with longitudinal fins of solar air heater,” J. Adv. Res., Vol. 5, No. 2, pp. 183–192, (2014).

[7] R. Karwa, “Thermo-hydraulic performance of solar air heater with finned absorber plate forming multiple rectangular air flow passages in parallel under laminar flow conditions,” Appl. Therm. Eng., Vol. 221, p. 119673, (2023).

[8] A. Ahmad, J. S. Saini, and H. K. Varma, “Effect of geometrical and thermophysical characteristics of bed materials on the enhancement of thermal performance of packed bed solar air heaters,” Energy Convers. Manag., Vol. 36, No. 12, pp. 1185–1195, (1995).

[9] A. Ahmad, J. S. Saini, and H. K. Varma, “Thermohydraulic performance of packed-bed solar air heaters,” Energy Convers. Manag., Vol. 37, No. 2, pp. 205–214, (1996).

[10] A. El-Sebaii, S. Aboul-Enein, M. R. I. Ramadan, and E. El-Bialy, “Year round performance of double pass solar air heater with packed bed,” Energy Convers. Manag., Vol. 48, No. 3, pp. 990–1003, (2007).

[11] P. Velmurugan and R. Kalaivanan, “Energy and Exergy Analysis of Solar Air Heaters with Varied Geometries,” Arab. J. Sci. Eng., Vol. 40, No. 4, pp. 1173–1186, (2015).

[12] P. Dhiman and S. Singh, “Recyclic double pass packed bed solar air heaters,” Int. J. Therm. Sci., Vol. 87, pp. 215–227, (2015).

[13] H. M. Yeh and C. D. Ho, “Solar air heaters with external recycle,” Appl. Therm. Eng., Vol. 29, No. 8–9, pp. 1694–1701, (2009).

[14] A. P. Omojaro and L. B. Y. Aldabbagh, “Experimental performance of single and double pass solar air heater with fins and steel wire mesh as absorber,” Appl. Energy, Vol. 87, No. 12, pp. 3759–3765, (2010).

[15] A. M. Ebrahim Momin, J. S. Saini, and S. C. Solanki, “Heat transfer and friction in solar air heater duct with V-shaped rib roughness on absorber plate,” Int. J. Heat Mass Transf., Vol. 45, No. 16, pp. 3383–3396, (2002).

[16] Varun, R. P. Saini, and S. K. Singal, “A review on roughness geometry used in solar air heaters,” Energy, Vol. 81, No. 11, pp. 1340–1350, (2007).

[17] V. S. Hans, R. P. Saini, and J. S. Saini, “Heat transfer and friction factor correlations for a solar air heater duct roughened artificially with multiple v-ribs,” Sol. Energy, Vol. 84, No. 6, pp. 898–911, (2010).

[18] R. K. Ravi and R. P. Saini, “Nusselt number and friction factor correlations for forced convective type counter flow solar air heater having discrete multi V shaped and staggered rib roughness on both sides of the absorber plate,” Appl. Therm. Eng., Vol. 129, pp. 735–746, (2018).

[19] S. Singh, “Utilising fractional porous interface for high thermal performance of serpentine wavy channel solar air heater,” Appl. Therm. Eng., Vol. 205, p. 118044, (2022).

[20] F. P. Incropera, D. P. DeWitt, T. L. Bergman, and A. S. Lavine, Fundamentals of Heat and Mass Transfer, 7th ed. Wiley, 2011.

[21] Y. A. Çengel and A. J. Ghajar, Heat and Mass Transfer: Fundamentals and Applications, 5th ed. McGraw-Hill, 2015.

[22] K. Sopian, M. A. Alghoul, E. M. Alfegi, M. Y. Sulaiman, and E. A. Musa, “Evaluation of thermal efficiency of double-pass solar collector with porous–nonporous media,” Renew. Energy, Vol. 34, No. 3, pp. 640–645, (2009).

[23] N. S. Thakur, J. S. Saini, and S. C. Solanki, “Heat transfer and friction factor correlations for packed bed solar air heater for a low porosity system,” Sol. Energy, Vol. 74, No. 4, pp. 319–329, (2003).

[24] P. Dhiman, N. S. Thakur, and S. R. Chauhan, “Thermal and thermohydraulic performance of counter and parallel flow packed bed solar air heaters,” Renew. Energy, Vol. 46, pp. 259–268, (2012).

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