Detailed performance model of a hybrid photovoltaic/thermal system utilizing selective spectral nanofluid absorption

Brekke, Nick; Dale, J.R.; DeJarnette, Drew; Hari, Parameswar; Orosz, Matthew; Roberts, Kenneth P.; Tunkara, Ebrima; Otanicar, Todd

doi:10.1016/j.renene.2018.01.025

Cited by 77 publications

(11 citation statements)

References 40 publications

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“…The solar spectrum reaching the ground is dependent on various factors, including the location, air quality, weather conditions, time, season, etc. Air mass 1.5 (AM1.5d) condition is typically used as the reference spectrum distribution in previous studies [35][36][37]40,51]. However, this method is only a coarse estimation as the actual distribution of the solar spectrum reaching the ground surface varies during a day and over the year, which significantly differs from the ideal AM1.5d distribution.…”

Section: Parabolic Trough Concentratormentioning

confidence: 99%

“…Studies on spectral-splitting PVT collectors have mainly focused on thermal and optical characterisations of spectrum splitters [28][29][30][31], novel concept/prototype developments [32][33][34], and thermodynamic modelling at the component and system levels [35][36][37]. The thermal outputs of such PVT systems were explored for either generating additional electricity using power cycles [35,[38][39], providing relatively high-temperature heat [40][41][42], or activating chemical reactions for fuel synthesis [43,44].…”

Section: Introductionmentioning

confidence: 99%

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Spectral-splitting hybrid PV-thermal (PVT) systems for combined heat and power provision to dairy farms

et al. 2020

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Section: Parabolic Trough Concentratormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spectral-splitting hybrid PV-thermal (PVT) systems for combined heat and power provision to dairy farms

et al. 2020

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“…Due to their small size and large specific surface area of particles, nanofluids have much different physical and chemical properties than base solution fluids [21]. By changing materials of nanoparticles and their size, concentration and shape [22], nanofluids can absorb the part of sunlight with specific frequency band [23,24].…”

Section: Selection Of Nanofluidsmentioning

confidence: 99%

Investigating the performance of a novel solar lighting/heating system using spectrum-sensitive nanofluids

Shen

Wei

et al. 2020

Applied Energy

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Solar lighting is considered as a promising technique, which has huge potential in conserving energy and relaxing the residents. However, current solar lighting systems used a filter to allow only visible light to enter buildings, releasing all the other energy contained in the long wave of the solar into the surrounding air. Such practice leaded to low efficiency of solar energy utilization and high costs. In this paper, a solar lighting/heating system was developed which used a hollow lens filled with ATO nanofluid to separate the long wave and short wave of solar energy. A series of tests were conducted to explore the performance of system. Results indicated that under the test condition of Case 1 (0.025%/0.0001% ATO/Graphite nanofluid, 100 L/h flow rate), the light transmission efficiency was 19.5% which was comparable to that of current solar lighting systems, and the heat absorption efficiency was 25.35%. The heat energy collected by the such a system from June to August (three months) in the city of Harbin was about 466.4 MJ in per square meter of collection area. The volume concentration of nanofluids had great influence on both the light transmission efficiency and the heat absorption efficiency. The flow rate had little influence on the light transmission efficiency, but had great influence on the heat absorption efficiency of the system.

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“…The average overall exergy efficiency for the PV, PVT/water, PVT/TiO 2 , PVT/ZnO, and PVT/ Al 2 O 3 was 10. 29, 11.56, 11.93, 12.17, and 11.88%, respectively. Brekke et al [36] proposed a performance model of a concentrating hybrid PVT system utilizing selective spectral nanofluid absorption. The proposed system used nanofluid to absorb the portion of the solar spectrum not efficiently exploited by the PV module.…”

Section: Development Of Nanofluid-based Pvtmentioning

confidence: 99%

Exergy in Photovoltaic/Thermal Nanofluid-Based Collector Systems

Farzanehnia¹,

Sardarabadi²

2019

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment

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This chapter focuses on the exergy analysis of photovoltaic/thermal (PVT) systems using nanofluid. The PVT hybrid systems are designed to harness solar energy more efficiently. The thermodynamic theory of exergy in PVT systems is explained in details. The existing researches used various models to perform the exergy analysis for performance evaluation of the PVT systems. These models and formulations are compared with each other to achieve a widely used theory for a better comparison of the results. The exergy analysis is an effective tool to evaluate the performance of PVT systems. The exergy efficiency enhancement in PVT systems and the effect of nanofluid from the literature are presented. The literature survey suggests that the increase in the flow rate increases the exergy efficiencies in collector-based PVT. Using nanofluid as optical filters of solar radiation results in higher exergy efficiencies compared to collector-based PVT systems. According to the recent publications, the long-term thermophysical stability of nanofluid and cost-based exergy analysis still require further investigations.

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Detailed performance model of a hybrid photovoltaic/thermal system utilizing selective spectral nanofluid absorption

Cited by 77 publications

References 40 publications

Spectral-splitting hybrid PV-thermal (PVT) systems for combined heat and power provision to dairy farms

Spectral-splitting hybrid PV-thermal (PVT) systems for combined heat and power provision to dairy farms

Investigating the performance of a novel solar lighting/heating system using spectrum-sensitive nanofluids

Exergy in Photovoltaic/Thermal Nanofluid-Based Collector Systems

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