Exergy Analysis of Solar Cabinet Dryer and Evaluate the Performance Enhancement of Solar Cabinet Dryer by Addition of Solar Reflectors

Abdullah Aziz, Saeed Rehman, Shafiq Rehman

Abstract


Solar dryer dehumidifies the moisture for food preservation using solar radiation. In this paper performance evaluation of cabinet dryer by using energy and exergy analysis tool has been presented.  Experimental work on proposed design of cabinet dryer has been carried out at Abraka, Nigeria. Analysis has been performed by solving the model equation of solar radiation of Abraka, Nigeria and mathematical model of solar cabinet dryer. Mathematical model has been solved by using Engineering Equation Solver. Solution of mathematical model will give the available useful energy and exergy of solar cabinet dryer. Performance of system is evaluated by making calculation of energy utilized in drying process using experimental data. The analysis highlights the energy losses, irreversibility, exergy losses and exergy destruction at different stages. This study will help improve the efficiency of the system so that maximum energy can be utilized. Performance comparison of cabinet dryer with and without a reflector is also discussed. It has been concluded that cabinet drier without a reflector is able to convert 39% of solar energy as available useful energy of dryer and convert about 13% of useful energy to exergy of the dryer system. While dryer with a reflector converts 42% of solar energy into available useful energy of dryer and converts about 17% of available energy to exergy of dryer. If we compare the performance of both dryers it can be observed that dryer without reflector has twice the exergy as compared to dryer with reflector.

Keywords


Energy; Exergy; Solar dryer; cabinet dryer

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References


Center for Resource Solutions, “Why Clean Energy?,†2014. [Online]. Available: http://buycleanenergy.org/why.

R. L. Earle, Unit Operation if Food Processing, Pergamon Press, 1983.

M. A. Maehlum, “Solar Energy Pros and Cons,†Energy Informative, 12 May 2014. [Online]. Available: http://energyinformative.org/solar-energy-pros-and-cons/.

I. Dincer, M. M. Hussain and Al-Zaharnah, “Energy and exergy use in public and private seector of Saudi Arabia,†Eneryg Policy, vol. 34, no. 141, pp. 1615-1624, 2004.

M. A. Rosen and I. Dincer, “Exergy as the Confluence of Energy, Environment and Sustainable Development,†Exergy, An International Journal, vol. 1, no. 1, pp. 3-13, 2001.

B. K. Bala, M. A. Morshed and M. F. Rahman, “Solar Drying of Mushroom Using Solar Tunnel Dryer,†in International Solar Food Processing Conference, 2009.

B. K. Bala and S. Janjai, “Solar drying of fruits, vegetables, spices, medicinal plants and fish: Development and potentials,†in International Solar Food Processing Conference, 2009.

B. O. Bolaji, “Exergetic Analysis of Solar Energy Drying Systems,†Natural Resources, vol. II, no. 2, pp. 92-97, 2011.

S. Singh and S. Kumar, “Development of convective heat transfer corrlations for common designs of solar dryer,†Energy Coversion and Management, vol. 64, pp. 403-414, 2012.

G. Babagana, K. Silas and B. G. Mustafa, “Design and construction of foced and natural convection solar vegetable dryer with heat storage,†ARPN Journal of Engineering and Applied Sciences,

vol. 7, no. 10, pp. 1213-1217, 2012.

S. Sami, N. Etesami and A. Rahimi, “Energy and Exergy Analysis of an indirect solar cabinet dryer based on mathematical modeling results,†Energy, vol. 36, no. 5, pp. 2847-2855, 2011.

A. A. Gatea, “Design, construction and performance evaluation fo solar maize dryer,†Journal of Agricultural Biotechnology and sustainable development, vol. 2, no. 3, pp. 39-46, 2009.

U. Toshniwal and S. Karale, “A Review Paper on Solar Dryer,†International Journal of Engineering and Research and Applications, vol. 3, no. 2, 2013.

B. Basumatary, M. Roy, D. Basumatary, S. Narzary, U. Deuri, P. K. Nayak and N. Kunar, “Design, construction and calibration of low cost solar cabinet dryer,†International Journal of Environment Engineering and Management, vol. 4, no. 4, 2013.

H. U. Emelue, N. Omehe, P. O. Ghome and K. Amanze, “Design and construction of cabinet solar dryer,†British Journal of Applied Science & Technology, pp. 270-284, 2015.

Y. A. Cengerl and M. A. Boles, Thermodynamics: An Engineering Approach, McGraw-Hill Higher Education, 2006.




DOI (PDF): https://doi.org/10.20508/ijrer.v6i4.4576.g6928

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