Document Type : Review Article


1 Department of Mechanical Engineering, All India Shri Shivaji Memorial Society’s College of Engineering, Pune-411001, Maharashtra, India.

2 Department of Mechanical Engineering, SSVPS Bapusaheb Shivajirao Deore College of Engineering, Dhule-424005, Maharashtra, India.



Preserving food from harvest to consumer level is a challenge in the agriculture sector. Drying is a crucial post-harvest technique that lowers moisture to levels suitable for storage. Solar drying is a traditional renewable energy drying process.  Different solar drying methods have been developed to speed up the drying process and maintain the product's nutritious content. Indirect solar drying is one of the efficient drying methods that has better control over the drying temperature. Indirect solar drying has developed into a desirable, effective, and environmentally responsible drying technique when combined with solar collectors and thermal storage. Flat plates, evacuated tubes, and concentrated solar collectors are used in indirect solar dryers along with direct air heating or thermal storage systems. This study aims to review the improvement in the drying rate with different air heating mechanisms. Flat plate collectors with liquid working fluid are employed to heat the air, whereas in evacuated tube collectors, the air is directly heated passing through the tubes. Working fluids, air temperature, air velocity, and solar radiation are important dryer parameters affecting the drying rate.  The paper also discusses the usage of heat storage devices for continuous drying operations. The drying time is greatly reduced through integration with latent and sensible storage technologies. Products that have been dried using indirect solar dryer and appropriate drying models are tabulated. Aspects of indirect solar drying and challenges in drying time reduction are also reported.


Main Subjects

  1. Belessiotisand E. Delyannis, “Solar drying” , Solar Energy, vol. 85, no. 8, (2011), 1665–1691. (
  2. Getahun, M. A. Delele, N. Gabbiye, S. W. Fanta, P. Demissie, and M. Vanierschot, “Importance of integrated CFD and product quality modeling of solar dryers for fruits and vegetables: A review”, Solar Energy, vol. 220, (2020), 88–110 (
  3. Singh and M. K. Gaur, “A review on thermal analysis of hybrid greenhouse solar dryer (HGSD),” J. Therm. Eng., vol. 8, no. 1, (2022) pp. 103–119.(
  4. Kusmiyati and A. Fudholi, “Solar-Assisted Microwave Convective Dryer for Coffee Cherries,” J. Renew. Energy Research, vol. 11, no. 1, (2021), 407–415, (
  5. Zareiforoush, A. Bakhshipour, and I. Bagheri, “Performance Evaluation and Optimization of a Solar-Assisted Multi-Belt Conveyor Dryer Based on Response Surface Methodology,” Journal Renewable. Energy Environment., vol. 9, no. 1, (2022), pp. 78–92, (
  6. Tabassumet al., “Design and development of solar dryers for food preservation,” Bangladesh J. Sci. Ind. Res., vol. 54, no. 2, (2016), pp. 155–160, (
  7. Prakash, A. Kumar, and Y. I. Sharaf-Eldeen, “Review on Indian Solar Drying Status,” Current Sustainable Energy Reports, vol. 3, no. 3–4, (2016), 113–120, (
  8. R. Nukulwar and V. B. Tungikar, “Thin Layer Mathematical Modelling of Turmeric in Indirect Natural Convection Solar dryer,” J. Sol. Energy Eng. Trans. ASME, vol. 142, (2020), (
  9. Girase, V. Mahajan, A. Kotwal, and A. Ugale, “A Solar Dryer Technology,” Int. Research Journal. of Engineering and Technology, Vol. 07, No. 01 (2020), 154-1757, (
  10. Vengsungnle, J. Jongpluempiti, A. Srichat, S. Wiriyasart, and P. Naphon, “Thermal performance of the photovoltaic-ventilated mixed mode greenhouse solar dryer with automatic closed loop control for Ganoderma drying,” Case Studies in Thermal Engineering, vol. 21, (2020), 100659 (
  11. Tiwari and G. N. Tiwari, “Grapes (Vitisvinifera) drying by semitransparent photovoltaic module (SPVM) integrated solar dryer: an experimental study,” Heat and Mass Transfer, vol. 54, no. 6, (2018), pp. 1637–1651, ,(
  12. Ahmad, O. Prakash, and A. Kumar, “Drying kinetics and economic analysis of bitter gourd flakes drying inside hybrid greenhouse dryer,” Environmental Science and Pollution Research, no. 0123456789, (2021), (
  13. Pirasteh, R. Saidur, S. M. A. Rahman, and N. A. Rahim, “A review on development of solar drying applications,” Renewable and Sustainable Energy Reviews, vol. 31, (2014), 133–148, (
  14. B. Lingayat, V. P. Chandramohan, V. R. K. Raju, and V. Meda, “A review on indirect type solar dryers for agricultural crops – Dryer setup, its performance, energy storage and important highlights,” Applied Energy, vol. 258,(2020), (
  15. A. Duffie and W. A. Beckman, Solar Engineering of Thermal Processes, Fourth edi. Hoboken, New Jersey: John Wiley & Sons, (2013), (
  16. K. Jangde, A. Singh, and T. V. Arjunan, “Efficient solar drying techniques: a review,” Environmental Science and Pollution Research, (2021), 1-14(
  17. E. M. Khallaf and A. El-Sebaii, “Review on drying of the medicinal plants (herbs) using solar energy applications,” Heat Mass Transfer, 2022, 1-18, (
  18. Moholkar, A. Jadhao, R. Chavan, R. Bhosale, and K. Pukale, “Experimental Analysis of Solar Dryers for Agricultural and Food Products,” International Research Journal of Engineering and Technology, vol. 5, no. 4, (2019),1517-1523,(
  19. M. Rahman, M. M. Rahman, and K. A. Salam, “Design, Construction and Performance Study of an Indirect Type Solar Dryer for Food Preservation,” (2017), (
  20. Udomkunet al., “Review of solar dryers for agricultural products in Asia and Africa: An innovation landscape approach,” Journal of Environmental Management, vol. 268, (2020), (
  21. Malwad and V. Tungikar, “Experimental performance analysis of an improved receiver for Scheffler solar concentrator,” SN Applied Science, vol. 2, no. 12, (2020), 1–14, (
  22. K. Koua, P. M. E. Koffi, and P. Gbaha, “Evolution of shrinkage, real density, porosity, heat and mass transfer coefficients during indirect solar drying of cocoa beans,” Journal of the Saudi Society of Agricultural Sciences, vol. 18, no. 1, (2019), 72–82,(
  23. Zoukit, H. El Ferouali, I. Salhi, S. Doubabi, and N. Abdenouri, “Takagi Sugeno fuzzy modeling applied to an indirect solar dryer operated in both natural and forced convection,” Renewable Energy, vol. 133, (2019) 849–860, (
  24. Demissie, M. Hayelom, A. Kassaye, A. Hailesilassie, M. Gebrehiwot, and M. Vanierschot, “Design, development and CFD modeling of indirect solar food dryer,” Energy Procedia, vol. 158, (2019), 1128–1134, (
  25. P. Bhor, Y. P. Khandetod, A. G. Mohod, and S. H. Sengar, “Performance study of solar tunnel dryer for drying of fish variety Dhoma,” International Journal of Agricultural Engineering, vol. 2, no. 2, (2010), pp. 222–227, (
  26. I. Sallam, M. H. Aly, A. F. Nassar, and E. A. Mohamed, “Solar drying of whole mint plant under natural and forced convection,” Journal of advanced research, vol. 6, no. 2, (2015), 171–178, (
  27. Kilankoet al., “Design and Performance Evaluation of a Solar Dryer,” Journal of Physics: Conference Series, vol. 1378, no. 3, (2019), (
  28. Montero, J. Blanco, T. Miranda, S. Rojas, and A. R. Celma, “Design, construction and performance testing of a solar dryer for agroindustrialby-products,” Energy Convervation Management, vol. 51, no. 7, (2010), 1510–1521, (
  29. Banout, J. Havlik, M. Kulik, P. Kloucek, B. Lojka, and I. Valterova, “Effect of solar drying on the composition of essential oil of sachaculantro (eryngiumfoetidum l.) grown in the peruvian amazon,” Journal of Food Process Engineering, vol. 33, no. 1, (2010), 83–103, (
  30. W. Deshmukh, M. N. Varma, C. K. Yoo, and K. L. Wasewar, “Investigation of Solar Drying of Ginger ( Zingiberofficinale ): Emprical Modelling, Drying Characteristics, and Quality Study ,” Chinese Journal of Engineering, (2014), 1–7, (https://doi.org10.1155/2014/305823).
  31. Sunil, Varun, and N. Sharma, “Experimental investigation of the performance of an indirect-mode natural convection solar dryer for drying fenugreek leaves,” Journal of ThermalEngineering., vol. 118, no. 1, (2014) 523–531, (
  32. J. Flores-Prieto, K. M. Aguilar-Castro, M. E. Baltazar-López, G. Alvarez, R. Castillo-Rincón, and J. C. Bahena-Bustos, “Indoor indirect solar dryer for ceramic craft industry,” Journal of Mechanical Science and Technology, vol. 28, no. 1, (2014), 349–356, (
  33. ELkhadraoui, S. Kooli, I. Hamdi, and A. Farhat, “Experimental investigation and economic evaluation of a new mixed-mode solar greenhouse dryer for drying of red pepper and grape,” Renewable Energy, vol. 77, (2015) 1–8, (
  34. A. Gulandaz, M. R. Ali, M. M. Hasan, M. Nur-A-Alam, N. Jahan, and M. M. Rahman, “Performance evaluation of modified hybrid solar dryer for paddy seed,” International. Journal of Postharvest Technology. And Innovation, vol. 5, no. 2, (2015) 105–124, (
  35. N. Hegde, V. S. Hosur, S. K. Rathod, P. A. Harsoor, and K. B. Narayana, “Design, fabrication and performance evaluation of solar dryer for banana,” Energy, Sustainability and Society, vol. 5, no. 1, (2015), (
  36. Shrivastava and A. Kumar, “Experimental investigation on the comparison of fenugreek drying in an indirect solar dryer and under open sun,” Heat Mass Transfer,vol. 52, no. 9, (2016), 1963–1972,(
  37. Ergün, İ. Ceylan, B. Acar, and H. Erkaymaz, “Energy–exergy–ANN analyses of solar-assisted fluidized bed dryer,” Drying Technology, vol. 35, no. 14, (2017), 1711–1720, (
  38. Zaredar, R. Effatnejad, and B. Behnam, “Construction of an indirect solar dryer with a photovoltaic system and optimised speed control,” IET Renewewable Power Generation, vol. 12, no. 15, (2018), 1807–1812, (
  39. Castillo Téllez, I. Pilatowsky Figueroa, B. Castillo Téllez, E. C. LópezVidaña, and A. López Ortiz, “Solar drying of Stevia (RebaudianaBertoni) leaves using direct and indirect technologies,” Solar Energy, vol. 159, (2018), 898–907, (
  40. Mahapatra and P. P. Tripathy, “Modeling and simulation of moisture transfer during solar drying of carrot slices,” Journal of Food Process Engineering, vol. 41, no. 8, (2018), 1–15, (
  41. Ullah, M. Kang, M. K. Khattak, and S. Wahab, “Retracted: Experimentally investigated the asparagus (Asparagus officinalis L.) drying with flat-plate collector under the natural convection indirect solar dryer,” Food Science & Nutrition, vol. 6, no. 6, (2018), 1357, (
  42. V. N. Lakshmi, P. Muthukumar, J. P. Ekka, P. K. Nayak, and A. Layek, “Performance comparison of mixed mode and indirect mode parallel flow forced convection solar driers for drying Curcuma zedoaria,” Journal of Food Process Engineering, vol. 42, no. 4, (2019). 1–12, (
  43. Abi Mathew and V. Thangavel, “Investigation on indirect natural convection solar drying of anti-diabetic medicinal products,” Journal of Food Processing and Preservation, vol. 43, no. 11, (2019,) 1–16, (
  44. Haque, M. Tiwari, M. Bose, and S. B. Kedare, “Drying Kinetics, Quality and Economic Analysis of a Domestic Solar Dryer for Agricultural Products,” INAE Letters, vol. 4, no. 3, (2019), 147–160, (
  45. Simo-Tagneet al., “Modeling of coupled heat and mass transfer during drying of ebony wood using indirect natural convection solar dryer,” Drying Technology, vol. 37, no. 14, (2019) 1863–1878, (
  46. Goud, M. V. V. Reddy, C. V.P., and S. S., “A novel indirect solar dryer with inlet fans powered by solar PV panels: Drying kinetics of Capsicum Annum and Abelmoschusesculentus with dryer performance,” Solar Energy, vol. 194, (2019), 871–885, (
  47. Kumar Aggarwal Yashwant Singh Parmar and R. Sharma Yashwant Singh Parmar, “Changes in physico-chemical and sensory attributes of some wild fruits dried in indirect solar dryer,” International Journal of Chemical Stududies, vol. 7, no. 2, (2019), (
  48. Nasri, “Solar thermal drying performance analysis of banana and peach in the region of Gafsa (Tunisia),” Case Studies Thermal Engineering, vol. 22, (2020), (
  49. J. Etim, A. Ben Eke, and K. J. Simonyan, “Design and development of an active indirect solar dryer for cooking banana,” Scientific African, vol. 8, Jul. 2020, doi: 10.1016/j.sciaf.2020.e00463.
  50. [50] Das and E. K. Akpinar, “Determination of thermal and drying performances of the solar air dryer with solar tracking system: Apple drying test,” Case Studies In Thermal Engineering, vol. 21, (2020), (
  51. X. Mutabilwa and K. N. Nwaigwe, “Experimental evaluation of drying of banana using a double-pass solar collector (DPSC) and theoretical analysis using a CFD model,” Cogent Engineering, vol. 7, no. 1, (2020), (
  52. Lingayat, V. P. Chandramohan, and V. R. K. Raju, “Energy and Exergy Analysis on Drying of Banana Using Indirect Type Natural Convection Solar Dryer,” Heat Transfer Engineering, vol. 41, no. 6–7, (2020) 551–561, 2020, (
  53. D. Sharma, S. Srivastava, and J. Singh, “Design, construction and performance testing of a simple low-cost solar dryer for agricultural and food products,” International Journal of Renewable Energy Technology, vol. 12, no. 4, (2021), 301, (
  54. Hssaini, R. Ouaabou, H. Hanine, R. Razouk, and A. Idlimam, “Kinetics, energy efficiency and mathematical modeling of thin layer solar drying of figs (Ficuscarica L.),” Scientific Report, vol. 11, no. 1, (2021),1–21, (https://doi,org/10.1038/s41598-021-00690-z).
  55. Geete, Y. Singh, and S. Rathore, “Energy and exergy analyses of fabricated solar drying system with smooth and rough surfaces at different conditions: A case study,” Heat Transfer, vol. 50, no. 6, (2021), 6259–6284, (
  56. Lingayat, V. P. Chandramohan, V. R. K. Raju, and S. Suresh, “Drying kinetics of tomato (Solanumlycopersicum) and Brinjal (Solanummelongena) using an indirect type solar dryer and performance parameters of dryer,” Heat Mass Transfer, vol. 57, no. 5, (2021), 853–872, (
  57. Zriba, M. S. Guellouz, and A. Jemni, “Design and optimization of a tomato drying solar cell,” Journal of Brazilian Society Mechanical Science Enginering, vol. 43, no. 6, (2021), 1–14, (
  58. Goud, M. V. V. Reddy, V. P. Chandramohan, A. Lingayat, V. R. K. Raju, and S. Suresh, “Experimental investigation of drying kinetics of green chilli and okra using indirect solar dryer with evaluation of dryer performance,” International Journal of Ambient Energy, (2021), (
  59. Abdenouri, A. Zoukit, I. Salhi, and S. Doubabi, “Model identification and fuzzy control of the temperature inside an active hybrid solar indirect dryer,” Solar Energy, vol. 231, (2022), 328–342, (
  60. Gupta, A. Biswas, B. Das, and B. V. Reddy, “Development and testing of novel photovoltaic-thermal collector-based solar dryer for green tea drying application,” Solar Energy, vol. 231, (2021), 1072-1091, (
  61. C. Gilago and V. P. Chandramohan, “Performance evaluation of natural and forced convection indirect type solar dryers during drying ivy gourd: An experimental study,” Renewable Energy, vol. 182, (2022), 934–945, (
  62. Misha, S. Mat, M. H. Ruslan, E. Salleh, and K. Sopian, “Performance of a solar-assisted solid desiccant dryer for oil palm fronds drying,” Solar Energy, vol. 132, (2016), 415–429, (
  63. Nabnean, S. Janjai, S. Thepa, K. Sudaprasert, R. Songprakorp, and B. K. Bala, “Experimental performance of a new design of solar dryer for drying osmotically dehydrated cherry tomatoes,” Renewable Energy, vol. 94, (2016), 147–156, (
  64. Daghigh and A. Shafieian, “Energy-exergy analysis of a multipurpose evacuated tube heat pipe solar water heating-drying system,” Experimental Thermal and Fluid Science, vol. 78, (2016) 266–277, (
  65. Daghigh and A. Shafieian, “An experimental study of a heat pipe evacuated tube solar dryer with heat recovery system,” Renewable Energy, vol. 96, (2016), 872–880, (
  66. Wang, M. Li, R. H. E. Hassanien, Y. Wang, and L. Yang, “Thermal performance of indirect forced convection solar dryer and kinetics analysis of mango,” Applied Thermal Engineering, vol. 134, (2018), 310–321, (
  67. Arunsandeep, A. Lingayat, V. P. Chandramohan, V. R. K. Raju, and K. S. Reddy, “A numerical model for drying of spherical object in an indirect type solar dryer and estimating the drying time at different moisture level and air temperature,” International Journal Of Green Energy, vol. 15, no. 3, (2018) 189–200, (
  68. T. Liu, M. Li, Q. F. Yu, and D. L. Ling, “A novel parabolic trough concentrating solar heating for cut tobacco drying system,” International Journal Of Photoenergy, vol. 2014, (2014), (
  69. Naemsai, J. Jareanjit, and K. Thongkaew, “Experimental investigation of solar-assisted heat pump dryer with heat recovery for the drying of chili peppers,” Journal Of Food Process Engineering, vol. 42, no. 6, (2019), 1–10, (
  70. E. Kabeelet al., “Experimental studies on natural convection open and closed solar drying using external reflector,” Environmental Science and Pollutaion Research, vol. 29, no. 1, (2022), 1391–1400, (
  71. Saikia, P. Kumar Nayak, K. Radha Krishnan, R. Kondareddy, and D. V. N. Lakshmi, “Development of indirect type solar dryer and experiments for estimation of drying parameters of dhekia (Diplaziumesculentum),” Materials Today Proceeding, vol. 56, (2022), 774–780, (
  72. Jha and P. P. Tripathy, “Recent Advancements in Design, Application, and Simulation Studies of Hybrid Solar Drying Technology”, Food Engineering Reviews, vol. 13, no. 2., (2021), 375-410, (
  73. K. Natarajan, E. Elangovan, R. M. Elavarasan, A. Balaraman, and S. Sundaram, “Review on solar dryers for drying fish, fruits, and vegetables,” Environmental Science Pollutant Research, vol. 29, (2022), 40478–40506, (
  74. Patel et al., “A review of phase change material based thermal energy accumulators in small-scale solar thermal dryers,” Bulgarian Chemical Communication, vol. 52, (2020), 53–64, (
  75. A. Komolafeet al., “Modelling of moisture diffusivity during solar drying of locust beans with thermal storage material under forced and natural convection mode,” Case Studies In Thermal Engineering, vol. 15, (2019), (
  76. Prakash, A. Kumar, and V. Laguri, “Performance of modified greenhouse dryer with thermal energy storage,” Energy Reports, vol. 2, (2016), 155–162, (
  77. C. Ndukwu, L. Bennamoun, F. I. Abam, A. B. Eke, and D. Ukoha, “Energy and exergy analysis of a solar dryer integrated with sodium sulfatedecahydrate and sodium chloride as thermal storage medium,” Renewable Energy, vol. 113, (2017), 1182–1192, (
  78. Yadav, A. B. Lingayat, V. P. Chandramohan, and V. R. K. Raju, “Numerical analysis on thermal energy storage device to improve the drying time of indirect type solar dryer,” Heat Mass Transfer, vol. 54, no. 12, (2018), 3631–3646, (
  79. B. Chaouch, A. Khellaf, A. Mediani, M. E. A. Slimani, A. Loumani, and A. Hamid, “Experimental investigation of an active direct and indirect solar dryer with sensible heat storage for camel meat drying in Saharan environment,” Solar Energy, vol. 174, (2018), 328–341, (
  80. Tarigan, “Mathematical modeling and simulation of a solar agricultural dryer with back-up biomass burner and thermal storage,” Case Studies In Thermal Engineering., vol. 12, (2018), 149–165, (
  81. Essalhi, M. Benchrifa, R. Tadili, and M. N. Bargach, “Experimental and theoretical analyasis of drying grapes under an indirect solar dryer and in open sun,” Innovative Food Science and Emerging Technologies, vol. 49, (2018), 58–64, (
  82. Shamekhi-Amiri, T. B. Gorji, M. Gorji-Bandpy, and M. Jahanshahi, “Drying behaviour of lemon balm leaves in an indirect double-pass packed bed forced convection solar dryer system,” Case Studies In Thermal Engineering, vol. 12, (2018), 677–686, (
  83. Mall and D. Singh, “Comparative Study of Performance of Indirect Mode with PCM and Mixed Mode Solar Dryer for Coriander Leaves,” (2018), (
  84. T. Bhendwade and A. S. Dube, “Performance Evaluation of Indirect Solar Dryer,” (2018), (https://www.ripublication.com58).
  85. Kondareddy, N. Sivakumaran, S. Kesavan, Radha Krishnan Dipanka, S. Siddrtha, and P. K. Nayak, “Performance evaluation of modified forced convection solar dryer with energy storage unit for drying of elephant apple (Dillenia indica),” Journal Food Process Engineering, vol. 45, no. 1, (2019), 1–18, (
  86. C. Ndukwu, M. Simo-Tagne, F. I. Abam, O. S. Onwuka, S. Prince, and L. Bennamoun, “Exergetic sustainability and economic analysis of hybrid solar-biomass dryer integrated with copper tubing as heat exchanger,” Heliyon, vol. 6, no. 2, (2020), (
  87. Singh and P. Mall, “Experimental investigation of thermal performance of indirect mode solar dryer with phase change material for banana slices,” Energy Sources, Part A Recover. Utilzation and Environmental Effect, (2020), 1-18, (
  88. Lamrani and A. Draoui, “Thermal performance and economic analysis of an indirect solar dryer of wood integrated with packed-bed thermal energy storage system: A case study of solar thermal applications,” Drying Technology, vol. 39, no. 10, (2021), 1371–1388, (
  89. S. K. Subramaniam, A. K. Sugumaran, and M. M. Athikesavan, “Performance analysis of a solar dryer integrated with thermal energy storage using PCM-Al2O3 nanofluids,” Environmental Science And Pollution Research, vol. 29, (2022), 50617–5063, (
  90. Radhakrishnan Govindan, M. Sattanathan, M. Muthiah, S. P. Ranjitharamasamy, and M. M. Athikesavan, “Performance analysis of a novel thermal energy storage integrated solar dryer for drying of coconuts,” Environmental Science and Pollution. Research, Vol. 29, (2022), 35230–35240, (
  91. S. BarghiJahromi, V. Kalantar, H. SamimiAkhijahani, and H. Kargarsharifabad, “Recent progress on solar cabinet dryers for agricultural products equipped with energy storage using phase change materials,” Journal Energy Storage, vol. 51, (2022), 104434, (
  92. K. K. Sekyere, F. K. Forson, and F. W. Adam, “Experimental investigation of the drying characteristics of a mixed mode natural convection solar crop dryer with back up heater,” Renewable Energy, vol. 92, (2016), 532–542, (
  93. A. Nguimdo and V. A. K. Noumegnie, “Design and implementation of an automatic indirect hybrid solar dryer for households and small industries,” International Journal Renewable Energy And Research, vol. 10, no. 3, (2020), 1415–1425, (
  94. Suherman, E. E. Susanto, A. W. Zardani, and N. H. R. Dewi, “Performance study of hybrid solar dryer for cassava starch,” AIP Conference Proceedings, , vol. 2197, (2020), (
  95. Tarigan and P. Tekasakul, “A Mixed-Mode Natural Convection Solar Dryer with Biomass Burner and Heat Storage Back-up Heater,” Anzses, (2005), 1–9, (
  96. Aydin, S. E. Ezenwali, M. Y. Alibar, and X. Chen, “Novel modular mixed-mode dryer for enhanced solar energy utilization in agricultural crop drying applications,” Energy Sources, Part A Recovery Utilization Environmental Effect, vol. 43, no. 16, (2021), 1958–1974, (
  97. W. Purnomo and S. Indarti, “Modification of Indirect Solar Dryer for Simplicia Production,” IOP Conference Series: Earth and Environmental Science, vol. 120, no. 1, (2018), (
  98. Tlatelpa-Becerro, R. Rico-Martínez, G. Urquiza, and M. Calderón-Ramírez, “Obtaining of crataegusmexicana leaflets using an indirect solar dryer,” Revista Mexicana De Ingenieria Quimica, vol. 19, no. 2, (2020), 669–676, (
  99. E. Matavelet al., “Experimental evaluation of a passive indirect solar dryer for agricultural products in Central Mozambique,” Journal Of Food Processing And Preservation, vol. 45, no. 11, (2021), 1–11, (
  100. KhaingHnin, M. Zhang, A. S. Mujumdar, and Y. Zhu, “Emerging food drying technologies with energy-saving characteristics: A review,” Drying Technology, vol. 37, no. 12, (2019), 1465–1480, (
  101. P. Chandra, A. Singh, V. Kannojiya, and J. P. Kesari, “Solar Energy a Path to India’s Prosperity,” Journal of Institution of Engineers Series C, vol. 100, no. 3, (2019). 539–546, (
  102. Digambar Singh, B. Yog Raj Sood, and C. Deepak, “Recent Techno-Economic Potential and Development of Solar Energy Sector in India,” IETE Technical Review (Institution Electron. Telecommun. Eng. India), (2019), 246-257, (
  103. Liu et al., “Review on concentrating solar power plants and new developments in high temperature thermal energy storage technologies,” Renewable and Sustainable Energy Reviews, vol. 53, (2016), 1411–1432, (
  104. Pranesh, R. Velraj, S. Christopher, and V. Kumaresan, “A 50 year review of basic and applied research in compound parabolic concentrating solar thermal collector for domestic and industrial applications,” Solar Energy, vol. 187, (2019), 293–340, (
  105. Hasan and T. A. G. Langrish, “Development of a sustainable methodology for life-cycle performance evaluation of solar dryers,” Sol. Energy, vol. 135, (2016), 1–13, (
  106. Deng, M. Li, T. Xing, J. Zhang, Y. Wang, and Y. Zhang, “A literature research on the drying quality of agricultural products with using solar drying technologies,” Solar Energy, vol. 229, (2021), 69–83, (
  107. Ravindra, T. Singh, and S. Mor, “Emissions of air pollutants from primary crop residue burning in India and their mitigation strategies for cleaner emissions,” Journal of Cleaner Production, vol. 208, (2019), 261–273, (