Modeling of the drying process of apple slices: Application with a solar dryer and the thermal energy storage system
Halil Atalay,
Mustafa Turhan Çoban and
Olcay Kıncay
Energy, 2017, vol. 134, issue C, 382-391
Abstract:
In this study a solar air heater was developed to determine the drying rate of apple (Golden Delicious). In order to provide the drying process continuously a packed bed thermal energy storage system was designed and manufactured. Also, a recuperator unit was used for waste heat recovery. In the recuperator unit, it is provided the mixing of the fresh air with the drying air whose moisture content increases, at a specified rate. So at the rate of 50–60% waste heat is recovered and reutilized in the drying system. The advantage of the system is that it consumes less energy at the rate of 76.8% than other drying technologies. Experiments on the drying system were repeated twice a day. In the experiments the drying kinetics of apple slices (5 ± 2 mm thick) was determined at constant temperatures ranging from 50−60°C. Also, Diffusion Approximation model was used for drying of apple slices in constant temperature. A mathematical model was developed to calculate the prediction of the moisture ratio during time and it is observed that the model is complied with the studies in the literature.
Keywords: Drying; Solar energy; Dried apple; Packed bed thermal energy storage; Renewable energy resources (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:134:y:2017:i:c:p:382-391
DOI: 10.1016/j.energy.2017.06.030
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