The influence of integrated Micro-ZnO and Nano-CuO particles/paraffin wax as a thermal booster on the performance of heat pipe evacuated solar tube collector

Alshukri, Mohammed J.; Eidan, Adel A.; Najim, Saleh Ismail

doi:10.1016/j.est.2021.102506

Cited by 45 publications

(8 citation statements)

References 30 publications

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“…Kumar and Mylsamy 25 also studied on a vacuum tube solar water heating system by utilizing nano-enhanced PCMs. Alshukri et al 26 experimentally analyzed heat pipe vacuum tube solar collector with ZnO micro-and CuO nanoparticle-embedded latent heat thermal storage modification. There are also some studies that investigated solar-still applications modified with thermal storage systems improved with various nanoparticles such as aluminum oxide, 27 copper oxide, 28 silicon dioxide, 29 and graphene oxide.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of a parabolic greenhouse dryer improved with copper oxide nano‐enhanced latent heat thermal energy storage unit

Selimefendigil

Şirin

2021

Intl J of Energy Research

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of a parabolic greenhouse dryer improved with copper oxide nano‐enhanced latent heat thermal energy storage unit

Selimefendigil

Şirin

2021

Intl J of Energy Research

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“…It was concluded that there was no significant increase in the efficiency of the system with NEPCM when comparing with pure PCM. Alshukri et al [195] experimentally studied the enhancement of paraffin wax with 5 wt% CuO nanoparticle and ZnO microparticles in an evacuated tube collector and obtained higher efficient improvement with the first one.…”

Section: Solar Domestic Water Heating Systems (Sdwhs)mentioning

confidence: 99%

Thermophysical properties of Nano-enhanced phase change materials for domestic heating applications

D'Oliveira

Pereira

Groulx

et al. 2022

Journal of Energy Storage

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“…A lot of similar research has been carried out in the last few years, which has shown the efficiency improvement with TES storage in such solar thermal collectors 37‐40 . Recently, nanocomposite PCMs have also been used to improve the thermal conductivity and thermal energy storage (TES) of FPC systems 41‐45 …”

Section: Introductionmentioning

confidence: 99%

“…[37][38][39][40] Recently, nanocomposite PCMs have also been used to improve the thermal conductivity and thermal energy storage (TES) of FPC systems. [41][42][43][44][45]…”

Section: Introductionmentioning

confidence: 99%

Real‐time thermal performance investigation of a thermal energy storage integrated direct absorption solar collector under tropical climate

Gupta,

Kumar,

Kukreja

et al. 2024

Energy Storage

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In the last two decades, metallic particles of nano sizes (~10−9 m) have been tested profoundly in volumetric absorption solar collectors (VASC) due to their excellent optical properties and broadband absorption in the entire solar spectrum. However, very limited studies are available for understanding the performance of integrated energy storage VASC systems using nanofluids. For the experimental work presented here, a hybrid nanofluid of gold nanoparticles in Azadirachta indica leaves extract has been synthesized by chemical route. The prepared hybrid nanofluid has shown good absorption in 400 to 700 nm wavelength range and hence achieved high photo‐thermal conversion efficiency for tested VASC system. Furthermore, commercially available paraffin wax is used as a phase change material (PCM) in thermal energy storage (TES) and further integrated with VASC to analyze the thermal performance of the system even after sunshine hours. The real‐time experiments were conducted using different working fluids, and at three mass flow rates, that is, 0.008 kg/s, 0.016 kg/s, and 0.033 kg/s, respectively, during mild winter days in the tropical climate of India. The study revealed a photo‐thermal efficiency enhancement of about 17.1% when hybrid heat transfer fluid was used in the VASC system with TES as compared to base fluid water but without TES. During the heating period, the maximum thermal gain of the hybrid nanofluid was observed to be about 15°C higher than the ambient temperature at mass flow rate of 0.033 kg/s. Thermal efficiency enhancement of about 23.8%, 24%, and 24.1% was observed with hybrid nanofluid compared to base fluid water at a mass flow rate of 0.008 kg/s, 0.016 kg/s, and 0.033 kg/s, respectively, when PCM was kept inside the tank. Furthermore, a maximum zero loss efficiency of 83.8% was estimated at an optimal mass flow rate of 0.033 kg/s for the TES‐integrated VASC system.

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The influence of integrated Micro-ZnO and Nano-CuO particles/paraffin wax as a thermal booster on the performance of heat pipe evacuated solar tube collector

Cited by 45 publications

References 30 publications

Experimental investigation of a parabolic greenhouse dryer improved with copper oxide nano‐enhanced latent heat thermal energy storage unit

Experimental investigation of a parabolic greenhouse dryer improved with copper oxide nano‐enhanced latent heat thermal energy storage unit

Thermophysical properties of Nano-enhanced phase change materials for domestic heating applications

Real‐time thermal performance investigation of a thermal energy storage integrated direct absorption solar collector under tropical climate

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