Influence of PV/T waste heat on water productivity and electricity generation of solar stills using heat pipes and thermoelectric generator: An experimental study and environmental analysis

Shoeibi, Shahin; Saemian, Mohammad; Khiadani, Mehdi; Kargarsharifabad, Hadi; Mirjalily, Seyed Ali Agha

doi:10.1016/j.enconman.2022.116504

Cited by 72 publications

(10 citation statements)

References 47 publications

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“…As the heat load increases, the temperature of the SSCVC becomes more and more difficult to reach the equilibrium, and a wide range of temperature fluctuation occurs, which indicates that the wick at the evaporator partially dries out 35 . As the heat load becomes higher, the evaporation rate of the coolant increases 36 , while the reflux rate of the condensed working liquid is limited by the capillary pressure provided by the wick. When the evaporation rate of the working liquid at the evaporator is greater than the reflux rate of the condensed working liquid, the local dryout will appear at the evaporator 37 .…”

Section: Resultsmentioning

confidence: 99%

Co-designing chip package structure on the ceramic vapor chamber for the high-conducting heat packaging

Bai,

Wang,

Zhang

et al. 2024

Preprint

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Conventional chip packaging generates a huge thermal resistance due to the low thermal conductivity of the packaging materials that separate chip dies and coolant. Some chip package structures with liquid cooling are developed, but at the same time, these will bring additional risks to running safety. Here we propose and fabricate a completely closed high-conducting heat chip package based on the passive phase change and the compatible material with the chip dies: chip on vapor chamber (CoVC), to realize the rapid diffusion of the heat of hot spots, so as to completely eliminate the energy consumption of the refrigeration which usually takes up the largest share in the power of the heat management. Multi-scale wicks and bionic vein structures are applied to CoVC. The multi-scale wick could increase the turning heat load of the CoVC from 20 W to 140 W, which was a 600% increase. The combination of bionic vein structure and CoVC has an increase of 164% in the heat transfer performance. The thermal resistance of the package was only a third of that traditional package. This means that the structure of CoVC has a good ability in thermal conducting and can reduce energy consumption for heat dissipation.

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Section: Resultsmentioning

confidence: 99%

Co-designing chip package structure on the ceramic vapor chamber for the high-conducting heat packaging

Bai,

Wang,

Zhang

et al. 2024

Preprint

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“…6,7 In the past decades, several approaches have been developed for low-grade heat utilization, such as the organic Rankine cycle, Kalina cycle and thermoelectric generators, etc. [8][9][10][11] However, these technologies still face several challenges including the huge size and weight of thermodynamic cycle systems or the low Seebeck coefficient of thermoelectric materials. 12,13 Signicantly, the thermo-electrochemical cell (TEC) is a technology that generates electricity through temperature-dependent redox reactions occurring at the surface of electrodes, with a Seebeck coefficient typically in the order of mV K −1 .…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation of a thermo-electrochemical cell with graphite rod electrodes

Zheng

Zhang

et al. 2023

RSC Adv.

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“…Al2O3/water nanofluid improves thermal and electrical efficiency by 126.71% and 7.38% respectively compared to pure water [5] . However, the current nanofluid does not completely absorb the short-wave spectrum outside the optimal spectral response band of the solar cell [6] , which hinders the further improvement of the system's efficiency. Therefore, finding the ideal nanofluid frequency divider that matches the spectral response of the solar cell has become a major task for future research on frequency-dividing PV/T systems.…”

Section: Introductionmentioning

confidence: 99%

The Performance of SiO₂ Nanofluid-based Split-frequency PV/T Energy

Nie

Qiu

Zhang

et al. 2023

J. Phys.: Conf. Ser.

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The efficiency of both solar photovoltaic and thermal power generation is relatively low, with the maximum panel temperature of conventional PV/T modules reaching 68.4 °C at noon, and the average electrical efficiency is only 12.98%. In this paper, the energy performance of a PV/T module based on SiO2 nanofluid was studied. Firstly, three different types of nanofluids, SiO2 nanofluid with a mass fraction of 0.3%, mass fraction of 0.5%, and mass fraction of 0.7%, were prepared and tested for their solar spectrum transmittance, and the results manifested that only the SiO2 nanofluid with 0.5% mass fraction exhibited strong absorption characteristics in the band after 400–1150 nm. Three liquid film thicknesses of 5 mm, 10 mm, and 15 mm, and three nanofluid mass fractions of 0.3%, 0.5%, and 0.7% were selected for the calculation of the spectral transmittance and the experiments on the thermal efficiency of the whole PV/T module. After conducting twenty-minute experimental tests on the power generation efficiency, thermal efficiency, and panel temperature of the flat panel, the results turned out the maximum efficiency reached 52.19%, which was found at a liquid film thickness of 10 mm and a nanofluid mass fraction of 0.7%, with a lower temperature of 40 °C, and an average of 10 °C lower than conventional PV panels.

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Influence of PV/T waste heat on water productivity and electricity generation of solar stills using heat pipes and thermoelectric generator: An experimental study and environmental analysis

Cited by 72 publications

References 47 publications

Co-designing chip package structure on the ceramic vapor chamber for the high-conducting heat packaging

Co-designing chip package structure on the ceramic vapor chamber for the high-conducting heat packaging

Simulation of a thermo-electrochemical cell with graphite rod electrodes

The Performance of SiO₂ Nanofluid-based Split-frequency PV/T Energy

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Influence of PV/T waste heat on water productivity and electricity generation of solar stills using heat pipes and thermoelectric generator: An experimental study and environmental analysis

Cited by 72 publications

References 47 publications

Co-designing chip package structure on the ceramic vapor chamber for the high-conducting heat packaging

Co-designing chip package structure on the ceramic vapor chamber for the high-conducting heat packaging

Simulation of a thermo-electrochemical cell with graphite rod electrodes

The Performance of SiO2 Nanofluid-based Split-frequency PV/T Energy

Contact Info

Product

Resources

About

The Performance of SiO₂ Nanofluid-based Split-frequency PV/T Energy