Factors Affecting Mangos Drying

Main Article Content

Asst. Prof. Dr. Jagrapan - Piwsaoad

Abstract

This paper presents experimental performance of a large-scale greenhouse solar dryer for drying mangos. The dryer consists of a polycarbonate sheets on a concrete floor. The dryer is 9.0 m in width, 22.0 m in length and 4.0 m in height. Nine 15-W DC fans powered by two 50-W PV module were used to ventilate the dryer. To investigate its performance, the dryer was used to dry ten batches of mangos. For each batch, 500 kilograms of mangos were dried in the dryer. Results obtained from the experiments showed that drying temperatures varied from 32C to 65C. In addition, the drying time for drying mangos was 3 days, compared to 5 days required for natural sun drying. Mangos dried in the dryer were completely protected from rain and high-quality mangos were obtained. The estimated payback period of the large-scale greenhouse solar dryer is about 2 year.


 

Downloads

Download data is not yet available.

Article Details

How to Cite
Piwsaoad, A. P. D. J.-. (2021). Factors Affecting Mangos Drying. SNRU Journal of Science and Technology, 13(2), 80-85. Retrieved from https://ph01.tci-thaijo.org/index.php/snru_journal/article/view/243025
Section
Research Article
Author Biography

Asst. Prof. Dr. Jagrapan - Piwsaoad, Program of Physics, Department of Science, Faculty of Science and Technology, Loei Rajabhat University, Loei 42000, Thailand

-Thailand Citation Index Centre

References

[1] Agricultural Statistics of Thailand, Ministry of Agriculture & Co-Operatives, Bangkok, Thailand. 2016.
[2] S. Janjai, J. Laksanaboonsong, M. Nunes, A. Thongsathitya, Development of a method for generating operational solar radiation maps from satellite data for a tropical environmental, Solar Energy. (78) (2005) 739-751.
[3] S. Janjai, B. K. Bala, Solar drying technology, Food Engineering Reviews, (4) (2012) 16-54.
[4] A. Sharma, C. R. Chem, N. V. Lan, Solar-energy drying systems: A review, Renewable and Sustainable Energy Reviews. (13) (2009) 1185-1210.
[5] J.A. Duffie, W.A. Beckman, Solar Engineering of thermal Processes. John Wiley and sons, New York., 1991.
[6] M. V. Murthy, A review of new technologies, models and experimental investigation of solar dryer, Renewable Energy Reviews. (13) (2009) 835-844.
[7] S. Janjai, J. Piwsaoad, W. Nilnont, P. Pankaew, Experimental performance and Neuron Network modeling of a Large-scale Greenhouse solar dryer for drying Natural rubber sheets, Journal of Control Science and Engineering, vol 1, pp. 48-53. (2015).
[8] M.K Krokida, E. Tsami, Z.B. Maroulis, Kinetics on color changes during drying of some fruits and vegetables. Drying Technology, 16(3–5), 667–685, 1998.

[9] M. Maskan, Kinetics of colour change of kiwifruits during hot air and microwave drying. Journal of Food Engineering, 48(2), 169–175, 2001.
[10] E. Audsley, J. Wheeler, The annual cost of machinery calculated actual cash flows, Journal of Agricultural Engineering Research. (23) (1978) 189-201.
[11] J. Piwsaoad, C. Phusampaoa, Greenhouse Solar Dryer for Drying Bael Fruits (Aegle Marmelos) in Loei Province Thailand, Proceeding of the 7th International Science, Social Sciences, Engineering and Energy Conference 19-21 November, Phitsanulok, Thailand. (2015) 721-731.