Evaluation of the nanofluid and nano-PCM based photovoltaic thermal (PVT) system: An experimental study

Al‐Waeli, Ali H.A.; Sopian, Kamaruzzaman; Chaichan, Miqdam T.; Kazem, Hussein A.; Ibrahim, Adnan; Mat, Sohif; Ruslan, Mohd Hafidz

doi:10.1016/j.enconman.2017.09.032

Cited by 344 publications

(66 citation statements)

References 72 publications

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“…The ZnO and CuO nanoparticles are dispersed in water and treated with ultrasonic method and surfactant. ZnO and CuO took for the study since it has higher stability compared with titanium dioxide and aluminum oxide . In order to measure the stability of the nanofluid, their density is measured.…”

Section: Methodsmentioning

confidence: 99%

“…ZnO and CuO took for the study since it has higher stability compared with titanium dioxide and aluminum oxide. 20,[22][23][24][25][26][27] In order to measure the stability of the nanofluid, their density is measured. The results are carried, but there is no change in the stability.…”

Section: Methodsmentioning

confidence: 99%

“…They found that the efficiency of the PVT depends on the parameters such as Reynolds number, fin size, volume, and size of nanofluid. However, they failed to report the electrical and thermal output efficiency, which is a major challenge in the design of PVT system . The present study focuses on the effects of nanofluid in the enhancement of the energy efficiency of photovoltaic cell.…”

Section: Introductionmentioning

confidence: 96%

“…However, they failed to report the electrical and thermal output efficiency, which is a major challenge in the design of PVT system. 17,20 The present study focuses on the effects of nanofluid in the enhancement of the energy efficiency of photovoltaic cell. From the recent review, 21 it is observed that the addition of nanofluids in PCM enhances the electrical output along with a significant increase in efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study to use nanofluid ZnO and CuO with phase change material in photovoltaic thermal system

Manigandan

Kumar

2019

Int J Energy Res

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Summary In this study, the simultaneous use of nanofluid and phase changing material as a coolant for photovoltaic fluid collector system and its effects are investigated experimentally. Two types of nanofluid are taken for the consideration, that is, ZnO and CuO, which are water‐based fluid. The experiments are performed in five different types of photovoltaic thermal system conventional: PT, PVT (ZnO), PVT (CuO), PCM medium (PVT/PCM/ZnO), and PCM medium (PVT/PCM/CuO). The results are obtained for surface temperature, energy, and thermal efficiency, and it is compared with each other. Further, the effect of the nanofluid as the effective alternative for pure deionized water is measured. From the results, it is evident that the PVT/PCM/CuO system minted 15% high electric output compared with convention module. Furthermore, the addition of the CuO nanofluid increases the thermal output significantly up to 8% for PVT and 12% for PCM without energy consumption. It also found that the nanofluid increases the overall energy efficiency of the system compared with convention PV.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Comparative study to use nanofluid ZnO and CuO with phase change material in photovoltaic thermal system

Manigandan

Kumar

2019

Int J Energy Res

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“…Because of these properties, most systems that use this type of PCM have a long melting and freezing cycle. However, because of their low thermal conductivity and their leakage during melting, they are encapsulated in polymeric capsules 3,11,12 . PCM microcapsules can increase thermal conductivity, increase heat transfer rate, prevent PCMs from interacting with the environment, and also control the PCM volume change during phase change.…”

Section: Introductionmentioning

confidence: 99%

Intelligent modeling of rheological and thermophysical properties of nanoencapsulated PCM slurry

Jirandeh

Mohammadiun

et al. 2020

Heat Trans

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Nanoencapsulated phase change material slurries (NPCMS) combine properties of carried fluid and phase change material (PCM). Usage of NPCMS instead of water as a working fluid has a lot of advantages in many industrial fields. The costly and time-consuming determination of thermophysical properties of NPCMS through the experimental analysis led the current investigations to use soft computing methods like correlating, artificial neural network (ANN), and ant colony optimization (ACO R ). In this study, the application of ANN, empirical correlations, and ACO R for modeling the thermophysical properties of NPCM slurry, which has been synthesized through a facile and eco-friendly procedure, has been investigated. PCM nanocapsules have been synthesized using a miniemulsion polymerization method. Nancapsules consist of AP-25 as core and a Styrene shell, which is modified with graphene oxide nanosheets as an extra protective screen.The morphology and thermal properties of nanocapsules were characterized and analyzed, respectively. Results revealed that minimum average particle-size values result in a melting latent heat of 146.8 J/g. In case of NPCM slurry, the results showed that the thermal conductivity of MPCS decreased with particle concentration for the temperatures below the melting point. The NPCMS can be considered a Newtonian fluid within the test region (shear rate > 200/seconds and mass fraction < 0.25). The ANN-ACO R model consists of two neurons in the input layer, six neurons in the hidden layer, and two neurons in the output layer. The input layer consists of two nodes (PCM concentration and temperature) that correspond to parameters found essential and sufficient for thermophysical properties prediction. Upon comparison, the results show that the presented model, which is a combination of the ACO R algorithm and an artificial neural network, is compatible with experimental work. K E Y W O R D SANN modeling, ant colony, phase change material, slurry, thermophysical properties

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Performance Assessment of Spectrum Selective Nanofluid‐Based Cooling for a Self‐Sustaining Greenhouse

Sajid

Biçer

2020

Energy Tech

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In hot climatic conditions, the temperature inside a greenhouse is much higher than the ambient temperature and requires significant cooling to maintain the temperature in the optimal range. This study proposes a novel concept for a selfsustaining greenhouse, which integrates evacuated tube collectors, a multistage flash desalination system, vapor absorption cooling system, and photovoltaic thermal (PV/T) system to produce freshwater, cooling, and electricity. The PV/T system uses spectrum selective nanofluid that is circulated over the roof of the greenhouse and absorbs solar radiation having wavelengths greater than 1400 nm to reduce cooling load inside the greenhouse and optimize the spectrum use. The performance of the proposed system is evaluated using energy and exergy analysis. The energy efficiencies of the evacuated tube collector, desalination unit, and PV/T system are obtained as 45.85%, 46.16%, and 51.25%, respectively. The absorption cooling system achieves an energetic coefficient of performance of 0.83. The overall energy and exergy efficiencies of the proposed system are found to be 30% and 5.88%, respectively. The application of spectrum selective nanofluid on the roof of the greenhouse yields about 26% reduction in the cooling load of the greenhouse.

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Evaluation of the nanofluid and nano-PCM based photovoltaic thermal (PVT) system: An experimental study

Cited by 344 publications

References 72 publications

Comparative study to use nanofluid ZnO and CuO with phase change material in photovoltaic thermal system

Comparative study to use nanofluid ZnO and CuO with phase change material in photovoltaic thermal system

Intelligent modeling of rheological and thermophysical properties of nanoencapsulated PCM slurry

Performance Assessment of Spectrum Selective Nanofluid‐Based Cooling for a Self‐Sustaining Greenhouse

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