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Improvements in Thermal Performance of Mango Hot-water Treatment Equipments: Data Analysis, Mathematical Modelling and Numerical-computational Simulation

Journal of Sustainable Development of Energy, Water and Environment Systems
Volume 5, Issue 2, pp 219-239
DOI: http://dx.doi.org/10.13044/j.sdewes.d5.0145
Elder M. Mendoza Orbegoso , Paul Villar-Yacila, Daniel Marcelo, Justo Oquelis
Mechanical-Electric Engineering Department, University of Piura, Av. Ramón Mugica 131, Urb. San Eduardo, Piura, Perú

Mango is one of the most popular and best paid tropical fruits in worldwide markets, its exportation is regulated within a phytosanitary quality control for killing the “fruit fly”. Thus, mangoes must be subject to hot-water treatment process that involves their immersion in hot water over a period of time. In this work, field measurements, analytical and simulation studies are developed on available hot-water treatment equipment called “Original” that only complies with United States phytosanitary protocols. These approaches are made to characterize the fluid-dynamic and thermal behaviours that occur during the mangoes’ hot-water treatment process. Then, analytical model and Computational fluid dynamics simulations are developed for designing new hot-water treatment equipment called “Hybrid” that simultaneously meets with both United States and Japan phytosanitary certifications. Comparisons of analytical results with data field measurements demonstrate that “Hybrid” equipment offers a better fluid-dynamic and thermal performance than “Original” ones.

Keywords: Mangoes, Hot-water treatment, 0-D mathematical modelling, Computational fluid dynamics, Pipe-type heat exchanger, Heat transfer efficiency.

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