Energy and exergy analysis of an unglazed transpired collector connected to a dryer with a porous plate and phase change material

Jahromi, Mohammad Saleh Barghi; Kalantar, Vali; Sefid, Mohammad; Akhijahani, Hadi Samimi; Iranmanesh, Masoud

doi:10.1016/j.est.2023.106693

Cited by 3 publications

(2 citation statements)

References 57 publications

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“…Initially, the following considerations are made: the electrical power of the fan (𝑃 ̇𝑒𝑙𝑒𝑐 ) is 0.04 kW [39]; the average unit cost of electricity (𝑐 𝑒𝑙𝑒𝑐 ) was obtained from XM (electricity market managers) with a value equivalent to 0.103 USD/kWh for the year 2022 in Colombia; the average heat transfer in the investigated collector (𝑄 ̇𝑐𝑜𝑙𝑙,𝑎𝑖𝑟 ) is 471.3672 W; the annual operation time of the equipment 𝑡 𝑜𝑦 is equivalent to 2880 h/year; and the economic life (𝑡 𝑒𝑙 of this equipment according to the market is 20 years [10], [13]. With the estimates made above, the levelized process heating cost (LCOH), which indicates the cost of producing one kWh of thermal energy, is calculated according to equation (22).…”

Section: Economic Analysismentioning

confidence: 99%

“…The most used way to store latent heat in flat plate solar collectors is the application of phase change material (PCM), which allows for increased thermal efficiency between the absorber plate and the working fluid. Because solar radiation and ambient temperature vary at every instant, the PCM acts as thermal storage in the system for a prolonged period when the energy source is no longer available [21], [22]. Table 1 presents experimental investigations on solar collectors using thermal storage to increase the temperature of the fluid in the equipment.…”

Section: Introductionmentioning

confidence: 99%

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Energy exergetic and economic analysis (3E) in a flat solar collector with thermal storage for air heating

Castillo-Leon,

Zanabria-Ortigoza,

Rincon-Quintero

et al. 2023

PEN

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Solar energy has been considered as a carrier of primary energy to sustain life, representing a renewable energy resource that strengthens industrialization through its use as the main source of energy. This study evaluates the energy, exergetic and economic yields through an analytical approach applied to experimental data obtained in a flat solar collector (SAC) with paraffin as phase change material (PCM) and "V" absorber plate geometry, intended for air heating. The results of the investigation indicated that the energy, exergetic, and exergy destroyed efficiency of the SAC were 71.24%, 16.96%, and 79.66%, respectively. This research allowed us to carry out a sensitivity analysis applied to the results of the thermodynamic variables of the equipment: thermal efficiency, air mass flow and solar radiation; where an improvement in the thermodynamic yields is evidenced by obtaining a thermal efficiency of 91.25%, exergetic efficiency of 61.03% and a decrease in exergy destroyed up to 35.04% of the values obtained experimentally. Through the economic analysis, it was determined that the levelized cost of heating the SAC is 0.0927 USD/kWh, indicating that the project is economically profitable, due to the use of solar energy instead of electrical energy as an input source. Lastly, this research is expected to be a contribution that can support the authors of subsequent projects interested in this technology.

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Section: Economic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy exergetic and economic analysis (3E) in a flat solar collector with thermal storage for air heating

Castillo-Leon,

Zanabria-Ortigoza,

Rincon-Quintero

et al. 2023

PEN

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Employing Phase-Change Materials to enhance the thermal performance of the solar dryer

Fu,

Bo,

Zhang

et al. 2024

Journal of Energy Storage

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Critical review on thermal performance enhancement techniques for flat plate solar collectors

Gaurav,

Verma

2024

Proceedings of the Institution of Mechanical Engineers, Part E:

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Supply of energy against continuous increase in energy demand is a great challenge for the present time. This has compelled the researchers to develop energy-efficient and performance-enhanced devices. Solar energy, being the capable source to supply the clean energy can be harvested with the help of flat plate solar collectors (FPSCs). In order to enhance the thermal performance of FPSC researchers have considered various aspects, for example, design modification, heat transfer fluid having enhanced thermophysical properties, use of nanofluids, reduction in heat loss, use of enhancement devices, use of phase change materials and porous materials. The present article describes in detail these methods and compares the results obtained by the respective researches. Experimental as well as numerical works have also been presented. A comprehensive review for the thermal performance enhancement techniques used in FPSC has been presented. The objective of this review is to provide a valuable framework for evaluating and comparing different techniques for enhancing FPSC performance. The review aims to help identify the most appropriate approach and gaps in current research and proposes potential areas for future enhancements, which is expected to assist researchers.

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Energy and exergy analysis of an unglazed transpired collector connected to a dryer with a porous plate and phase change material

Cited by 3 publications

References 57 publications

Energy exergetic and economic analysis (3E) in a flat solar collector with thermal storage for air heating

Energy exergetic and economic analysis (3E) in a flat solar collector with thermal storage for air heating

Employing Phase-Change Materials to enhance the thermal performance of the solar dryer

Critical review on thermal performance enhancement techniques for flat plate solar collectors

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