Solar dryer technologies for agricultural products in Mozambique: An overview




Climate change; Environment; Preservations; Solar dryer; Solar energy.


Mozambique is an agricultural country. However, it faces numerous challenges to feed the population and reduce poverty. Recently, the situation is being worsened by high environmental, social vulnerability and extreme events influenced by climate disruption in the form of cyclones, droughts, and floods. Sustainable use of resources has become an issue in each food supply chain segment. People often suffer from food shortages: some caused by natural disasters, others by excessive post-harvest losses due poor storage facilities. Therefore, reducing post-harvest losses through preservation technologies is an important step toward reaching ending hunger (SDG 2) and ensuring sustainable consumption and production patterns (SDG 12). Thus, practical ways of cheaply and sanitarily preserving foods are needed. The post-harvest losses of agricultural products can be reduced drastically by using renewable energy sources like solar energy. This article presents a review and possibilities of using solar drying, focusing on the technical needs of small farmers in Mozambique. In this study, it was concluded that solar drying is one of the most efficient and cost-effective, renewable, and sustainable technologies to conserve agricultural products. However, solar dryers, being used in Mozambique, are only useful in the presence of solar radiation and useless at night or during cloudy days. To enable off-sun drying, heat storage must be integrated. This way, it can trigger the hopes for alleviation of poverty, opportunity for decent work, economic growth and reduce inequality.


Adnan Waked. (1986). Solar energy storage in rocks, Solar & Wind Technology, 3(1), 27-31.

AGRIVI. (2022). (acesso em 20 de Outubro de 2022).

Al-Neama, M. A., & Farkas, I. (2016). Influencing of Solar Drying Performance by Chimney Effect. Hungarian Agricultural Engineering, 11-16.

ANELL. REPORT. (2013). Brasil: Centro de Documntação - CEDOC; Agência Nacional de Energia Elétrica (Brasil), 80.

Arthur, F, Cumbe, F.; Nhumaio, G. & Saide, E A. (2015). Solar Thermal Technology Raodmap. Mozambican Solar Thermal Technology Raodmap: The Future for Solar thermal Energy.

Bal, lalit M., Satya, S & Naik, S. N. (2010). Solar dryer with thermal energy storage systems for drying agricultural food products: A review. Elseview: Renewable and Sustainable Energy Reviews, 2298–2314.

Baylin, F. (1979). Low temperature thermal energy storage: a state of the art survey. Report no. SERI/RR/-54-164. Golden, Colorado, USA: Solar Energy Research Institute.

Burade, P. N., Rohit M. Dongre, S., Thomas, S. T., & Mandavgade. N K (2017). “Application of Solar In Food Dryer-A Literature.” International Journal of Innovations in Engineering and Science 2(11), (2017): 11 - 15.

Cekirge, H. M., & Elhassan, A. (2015). “A Comparison of Solar Power Systems (CSP): Solar Tower (ST) Systems versus Parabolic Trough (PT) Sys.” 2015.

Chichango F.; & Cristóvão L. (2021). Mozambique Solar Thermal Energy Technologies: Current Status and Future Trends, Journal of Energy Technologies and Policy, 11(5).

Cristóvão, L.; Fernando Chichango; P. M., and Joaquim Macanguisse. (2021). The Potential of Renewable Energy in Mozambique: An Overview. Journal of Energy Technologies and Policy, p30-37.

Custodio E. Matavel, Harry Hoffmann, Constance Rybak, Johannes M. Hafner, João Salavessa, Shibire Bekele Eshetu, & Stefan Sieber (2021). Experimental evaluation of a passive indirect solar dryer for agricultural products in Central Mozambique Journal of Food Processing and Preservation, Vol.45, Issue 11.

Cuvilas, C. A., R. Jirjis, & C. L. (2010). Energy situation in Mozambique: A review. Elisevier

DiPersio, P. A., P. A. Kendall, Y. & Yoon, J. N. (2007). Sofos. “Influence of modified blanching treatments on inactivation of Salmonella during drying and storage of carrot slices. Food Microbiol 24 pp 500-507.

EDM. (2018). Integrated Master Plan. Japan International Cooperation Agency (JICA).

FAO. (2022). Home garden technology leaflet: processing, preservation and storage. (acesso em 30 de 10 de 2022).

Indiarto, Rossi, Awwaliyah Hodizah Asyifaa, Fatsyarien Citra Angiputri Adiningsih, Ghina Almira Aulia, & Sarah Rahmalia Achmad. (2021). Conventional And Advanced Food-Drying Technology: A Current Review.” International journal of scientific & Technology. 10(1), 99-107.

Krishnan, S., & Sivaraman, B. (2017). Experimental Investigations on Thermal Storage in a Solar Dryer. International Energy Journal, 23-36.

Lane G A. (1983). Solar heat storage—latent heat materials, vol. I. Boca Raton, FL: CRC, Press, Inc.

LBPTC. (2010). Kit de Sensibilizacao sobre o Rio Limpopo. (acesso em 30 de outubro de 2022).

Nijegorodov, N. I., Devan, K. R. S.; Simao, H R. & Mabbs. (2003). Comprehensive study of solar conditions in Mozambique: the effect of trade winds on solar components. Elsevier Science Ltd: Renewable Energy 28,1965 - 1983.

Phadke, P. C., Pramod V. W., & Vilayatrai M. K. (2015). A Review on Indirect Solar Dryers. ARPN Journal of Engineering and Applied Sciences, pp3360 - 3371.

Rosa, A. D. (2013). Fundamentals of Renewable Energy Processes. Elsevier Inc. All, Vols. 978-0-12-397219-4.

Sharma, A, Tyagi V. V., Chen C. R, & Buddhi D. (2009). Review on thermal energy storage with phase change materials and applications. Renew Sustain Energy Rev, 318–45.

Solar Heat Wouldwide. (2019). Global Market Development and Trends in 2018, Detailed Market Figures 2017, 83.

United Nations. 2018. (acesso em 12 de Julho de 2021).

Weiss, Werner, & Monica Spork - Dur. (2018) “SOLAR HEAT WOULDWIDE.” Global Market Development and Trends in 2018, Detailed Market Figures 2017, (2019). 83.




How to Cite

CHICHANGO, F. .; CRISTÓVÃO , L. .; MUGUIRIMA, P. .; GRANDE, S. . Solar dryer technologies for agricultural products in Mozambique: An overview. Research, Society and Development, [S. l.], v. 12, n. 4, p. e6812439850, 2023. DOI: 10.33448/rsd-v12i4.39850. Disponível em: Acesso em: 29 may. 2023.



Agrarian and Biological Sciences