Economic Analysis of Hybrid Photovoltaic-Thermal (PV-T) Integrated Indirect-Type Solar Dryer

Quests for sustainability, food security and need to decouple food prices from fluctuating prices of finite fossil fuels are the drivers to sustainable processing and storage of agricultural products.Farming predominantly takes place in rural areas where conventional energy technologies may either be expensive or sometimes technically infeasible to be obtained. This necessitates deployments of renewable energy technologies to remote areas for sustainable power generation, cooling and drying of agricultural product. Renewable systems e.g. solar dryers, solar hybrid dryers, combined power and drying system take leading roles in sustainable drying of farm produce. A number of research studies have been carried out in the past one decade, which mainly concentrate on modelling, simulation and experiment of different sustainable drying techniques. Therefore, this paper mainly aims to present a state of the art review on the contributions of combined power and drying, application of phase change materials and hybrid drying systems with regard to agricultural products. Based on this comprehensive summarization, it is indicated that deployment of biomass powered combined heat and power systems might be a good solution to post-harvest wastes since both electricity and heat for drying of agricultural products can be simultaneously obtained.

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“…Nayak et al [157] considered a PV panel-PV/T integrated forced convection solar dryer which was displayed in Fig. 14.…”

Section: Economic Evaluation Of the Drying Unitsmentioning

confidence: 99%

“…[156] Solar PV&PV/T dryer Cauliflower Payback period of 5.6 years is recorded. [157] Forced convection greenhouse dryer…”

Section: Seaweedmentioning

confidence: 99%

Recent advances in sustainable drying of agricultural produce: A review

et al. 2019

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“…The total energy output per year from the dryer is the sum of the net output energy of electricity from the PV and the net output thermal energy from the solar collectors (Nayak and Narwal, 2017). The net annual average electrical output…”

Section: Annual Thermal Energy Outputsmentioning

confidence: 99%

Two-stage solar tunnel chili drying: Drying characteristics, performance, product quality, and carbon footprint analysis

et al. 2021

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“…Solar energy is using some different way in the food drying systems such as; in direct sun drying applications, direct conversion to heat energy (water-heated, airheated, etc. ), direct use as electrical energy, or storage as electrical energy (Banout, 2017;Kong et al, 2020;Nayak & Narwal, 2017;Sinhmar & Singh, 2021). In the present study, the solar energy was stored as electrical energy to supply the energy requirement of the system.…”

Section: Introductionmentioning

confidence: 96%

Drying of tomato pomace in daylight simulated photovoltaic‐assisted drying system: Effects of daylight intensity and application mode

Bayana

İçıer

2022

J Food Process Engineering

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It was aimed to dry a by-product of tomato paste production (tomato pomace) by minimizing the losses valuable components and reducing energy consumption. In this concept, a daylight simulated photovoltaic-assisted dryer (DPVD) applying the daylight in different modes and intensities during drying was custom-designed. The effects of daylight applications on the change of some quality characteristics of tomato pomace and system performance characteristics were investigated, and the optimum drying condition was determined. The process conditions included the combination of three different daylight application modes (UV-blocked daylight via solar tube-DLST, DLST + LED, and LED) and three different daylight intensities (2,500, 7,500, and 10,000 lux). The drying was applied for 240 min at constant air temperature (60 C) with an air velocity of 2 m/s. The moisture content and the water activity values of dried tomato pomace were 8.86 ± 2.00% and 0.57 ± 0.10%, respectively.The lycopene and β-carotene losses after drying were determined as 68.36 ± 4.32% and 65.66 ± 4.33%, respectively. The energy and exergy efficiencies of the system were in the range of 19.56%-35.73% and 5.10%-17.05%, respectively. The optimum condition meeting the criteria of superior quality and high-performance characteristics was obtained by applying DLST at 7,500 lux (desirability 0.728). In the performance improvement studies, it has been concluded that all the energy required for the process could have been fulfilled as 100% from solar energy with the support of photovoltaic panels. In other words, it was demonstrated that the developed DPVD system could be used to dry the tomato pomace not only in terms of providing high food quality and safety, but also in terms of having high energy efficiency. Practical applicationsExposure to the daylight is important to dry some foods. Especially in north countries, products are dried in artificial dryers, but it requires high energy consumption.In this study, the daylight transfer system was integrated into the artificial dryer for the purpose of using daylight effect in addition to the photovoltaic (PV) assistance for using solar energy. During periods when the solar thermal effect is not intense or in countries where the sun effect is limited, it will be possible to dry food products

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Economic Analysis of Hybrid Photovoltaic-Thermal (PV-T) Integrated Indirect-Type Solar Dryer

Cited by 7 publications

References 25 publications

Recent advances in sustainable drying of agricultural produce: A review

Recent advances in sustainable drying of agricultural produce: A review

Two-stage solar tunnel chili drying: Drying characteristics, performance, product quality, and carbon footprint analysis

Drying of tomato pomace in daylight simulated photovoltaic‐assisted drying system: Effects of daylight intensity and application mode

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