Parametric study of photovoltaic/thermal wickless heat pipe solar collector

Brahim, Taoufik; Jemni, Abdelmajid

doi:10.1016/j.enconman.2021.114236

Cited by 55 publications

(4 citation statements)

References 32 publications

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“…where η el is the empirical equation for the electrical efficiency of a PV cell. It is given as follows [39,41]:…”

Section: Energy Balance Equationmentioning

confidence: 99%

Electrical and Thermal Performances of a Single-Pass Double-Flow Photovoltaic-Thermal Collector Coupled with Nonuniform Cross-Section Rib

Choi

2023

International Journal of Energy Research

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The air-based photovoltaic-thermal collector (PVTC) is a system that can generate electricity and heated air simultaneously from solar energy. This study investigates the electrical and thermal performances of an air-based single-pass double-flow photovoltaic-thermal collector (SPDFPVTC) coupled with a nonuniform cross-section rib (NUCSR) under various operating conditions. The rib is installed at the rear of the photovoltaic panel to enhance the heat transfer performance between the photovoltaic panel and the flowing air. Based on the energy balance equations, a mathematical model of the proposed SPDFPVTC is established and validated by experimental results. The solar intensity, air mass flow rate, and wind speed are selected as operating conditions. The effects of these operating conditions on the electrical and thermal performance of the SPDFPVTC have been discussed. In addition, this study evaluates the daily performance of SPDFPVTC with and without NUCSR. The average electrical, thermal, and overall efficiency were 17.59%, 43.96%, and 61.55%, respectively, for SPDFPVTC with NUCSR and 16.97%, 38.87%, and 55.83%, respectively, for SPDFPVTC without NUCSR. Consequently, installing NUCSR could enhance the daily electrical, thermal, and overall energy output of SPDFPVTC by 4.33%, 13.23%, and 10.63%, respectively.

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“…where η el is the empirical equation for the electrical efficiency of a PV cell. It is given as follows [39,41]:…”

Section: Energy Balance Equationmentioning

confidence: 99%

Electrical and Thermal Performances of a Single-Pass Double-Flow Photovoltaic-Thermal Collector Coupled with Nonuniform Cross-Section Rib

Choi

2023

International Journal of Energy Research

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“…(9) In addition to lowering the condensing temperature of CSP plants and solar heat pumps, the application of radiative cooling can be extended to other solar energy-driven thermodynamic cycles, such as solar absorption cooling systems, solar organic Rankine cycle systems, and solar thermoelectric cooling systems, etc. (10) Considering that solar energy utilization and radiative cooling technologies share similarities in several aspects such as fundamental, renewability, and application scenarios, the well-developed and multitudinous solar energy technologies can be a perfect mirror and direct new advancements for the newly-developing radiative cooling art as well as those integrated solar energy and radiative cooling technologies (i.e., PV-RC, PT-RC, and PV-PT-RC). For example, solar tracking, concentrated structures, evacuated tubes, solar ventilation/chimney, solar-powered freshwater collection, etc., are good enlightenment for radiative cooling-related energy systems.…”

Section: Challenges and Prospectsmentioning

confidence: 99%

“…Therefore, various attractive techniques aimed to lower the cell temperature were developed for the improvement of power conversion efficiency and reliability of the PV module [7]. Some predominant PV cooling technologies are water cooling [8], air cooling [9], refrigerant cooling [10], radiative cooling [11], etc.…”

Section: Introductionmentioning

confidence: 99%

Applications of radiative sky cooling in solar energy systems: Progress, challenges, and prospects

Zhao

SUHENDRI

et al. 2022

Renewable and Sustainable Energy Reviews

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“…The phase change cooling technologies have been actively studied utilizing two-phase coolant with boiling temperature of 34 °C 13 , RT35 14 , Al 2 O 3 composites 15 , and paraffin-based materials 16 . The heat pipe cooling device has been proposed and a maximum thermal efficiency can be improved by 14.2% 17 . Li et al 18 developed atmospheric water sorption-based cooling for PV cell, which can also harvest water during power generation.…”

Section: Introductionmentioning

confidence: 99%

Self-recovering passive cooling utilizing endothermic reaction of NH4NO3/H2O driven by water sorption for photovoltaic cell

Kim¹,

Park²,

Lee

et al. 2023

Nat Commun

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Power efficiency of photovoltaic cell is significantly affected by the cell temperature. Here, a self-recovering passive cooling unit is developed. The water-saturated zeolite 13X is coated on the back side of photovoltaic cell, and ammonium nitrate is dispersed as a layer to form a thin film. When heat is supplied, water is desorbed from zeolite 13X (latent cooling), and dissolves ammonium nitrate to induce endothermic reaction cooling. It is a reversible process that recovers itself at night. The unit works on the basis that the water sorption performance of porous materials is inversely proportional to temperature, and the solubility of endothermic reaction pairs increases proportionally with temperature. The average temperature of photovoltaic cell can be reduced by 15.1 °C, and the cooling energy density reaches 2,876 kJ/kg with average cooling power of 403 W/m2. We show that highly efficient passive cooling comprising inexpensive materials for photovoltaic cell could be achieved.

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Parametric study of photovoltaic/thermal wickless heat pipe solar collector

Cited by 55 publications

References 32 publications

Electrical and Thermal Performances of a Single-Pass Double-Flow Photovoltaic-Thermal Collector Coupled with Nonuniform Cross-Section Rib

Electrical and Thermal Performances of a Single-Pass Double-Flow Photovoltaic-Thermal Collector Coupled with Nonuniform Cross-Section Rib

Applications of radiative sky cooling in solar energy systems: Progress, challenges, and prospects

Self-recovering passive cooling utilizing endothermic reaction of NH4NO3/H2O driven by water sorption for photovoltaic cell

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