Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
THERMODYNAMIC MODELING OF A HYBRID SOLAR-ELECTRIC DRYER
Submission Author:
Gabriel M. B. Cruz , SP
Co-Authors:
Gabriel M. B. Cruz, Cristiana Brasil Maia
Presenter: Gabriel M. B. Cruz
doi://10.26678/ABCM.ENCIT2022.CIT22-0183
Abstract
Drying is a method used worldwide to reduce food losses by increasing its durability. Hybrid dryers can combine the advantages of both natural and artificial dryers by using solar energy as a primary source combined with a supplementary source when needed, such as fossil, biomass, or electric heaters. Therefore, such technique provides a means to minimize the greenhouse effect emission on a commercial scale and mitigate global warming without losing economic feasibility. Hybrid dryers can also guarantee a stable and manageable drying process capable of producing dried food with the quality required in terms of texture, moisture, appearance, taste, and nutritional values. This paper aims at studying a hybrid solar-electric dryer (HSED) without load in Belo Horizonte, MG, Brazil. Based on the first law of thermodynamics, a model was developed to analyze the flow conditions and the feasibility of the HSED. Past research across the world studying solar thermal devices have shown keen interest in energy analyzes as well as successful implementation of solar drying techniques for various agricultural products. The mathematical model developed in this paper proved to be coherent with past studies and can be used to design new dryers and make preliminary analyses.
Keywords
thermal modeling, Solar drying, hybrid solar-electric drying, energetic analysis, flow conditions
