Validation Study of Photovoltaic Thermal Nanofluid Based Coolant Using Computational Fluid Dynamics Approach

Rosli, Mohd Afzanizam Mohd; Loon, Yew Wai; Nawam, Muhammad Zaid; Misha, Suhaimi; Roslizar, Aiman; Hussain, F.; Hamid, Nurfaizey Abdul; Arifin, Zainal; Herawan, Safarudin Gazali

doi:10.37934/cfdl.13.3.5871

Cited by 9 publications

(9 citation statements)

References 19 publications

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“…Prior to analysing the heat transfer and pressure drop effect of hybrid nanofluids, the simulation was first validated to ensure its accuracy against published data [9]. The graph showed that the simulation conducted was in the range of 0.9 % to 9 % deviation from the published work as shown in Figure 4.…”

Section: Resultsmentioning

confidence: 99%

“…Addition of metallic and non-metallic nano particles to the base fluids have increased the total surface area of the particles which eventually improved the heat transfer rate as compared to the base fluids. There are various of heat transfer studies on adoption of nanofluids [8][9][10]. Zakaria et al [11] has concluded that both thermal conductivity and electrical conductivity of Al2O3 nanofluids have improved up to 12.8 % and 14.3 % respectively as compared to the base fluid.…”

Section: Introductionmentioning

confidence: 99%

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The Characteristics of Hybrid Al2O3:SiO2 Nanofluids in Cooling Plate of PEMFC

Idris

Zakaria

Azmi

et al. 2021

ARFMTS

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A Proton Electrolyte Membrane fuel cells (PEMFC) is considered to be a viable alternatives to Internal Combustion Engines (ICEs) in automotive applications due to the key advantages in thermal management system. The main duty of thermal management system is to maintain the desirable temperature, with a uniform temperature distribution across the stack and.its.individual membranes. In this paper, the thermal enhancement of a PEMFC cooling plate was analysed and presented. The hybrid Al₂O₃:SiO₂ was used as coolant in distributor cooling plate. The study focuses on water based 0.5% volume concentration of single Al₂O₃ , single SiO₂ nanofluids, hybrid Al₂O₃:SiO nanofluids with mixture ratio of 10:90, 20:80, 50:50, 60:40 and 90:10. The effect of different ratios of nanofluids to heat transfer enhancement and fluid flow in Reynold number range of 400 to 2000 was observed. A 3D computational fluid dynamic (CFD) was developed based on distributor cooling plates using Ansys 16.0. Positive heat transfer enhancement was obtained where the 10:90 Al₂O₃:SiO₂ nanofluids has the highest heat transfer coefficient as compared to other nanofluids used. However, all nanofluids experienced higher pressure drop. Therefore, the advantage ratio was used to analyze the effect of both heat transfer enhancements and pressure drop demerits for nanofluids adoption. The results concluded that 10:90 Al₂O₃:SiO₂ hybrid nanofluid is the most feasible candidate up to fluid flow of Re1000. The positive results implied that hybrid Al₂O₃:SiO₂ nanofluids do improve the single nanofluids behaviour and has a better potential for future applications in PEMFC thermal management.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Characteristics of Hybrid Al2O3:SiO2 Nanofluids in Cooling Plate of PEMFC

Idris

Zakaria

Azmi

et al. 2021

ARFMTS

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“…The refined meshing of a combination of tetrahedral and multizone was used in the simulation. The meshing method is significant and will affect the accuracy, convergence, and speed of simulation [19].…”

Section: Mesh Generationmentioning

confidence: 99%

“…Uniformity of temperature and velocity distribution can be ensured by keeping away the tray from the inlet because the air velocity is too high at the inlet and poor air flow distribution can cause uneven drying [24]. When trays are placed away from the inlet, it can improve the airflow behaviour inside the chamber [19]. As shown in Figure 13, the velocity distribution is more even at the bottom of the drying chamber when the inlet is located far away from the tray.…”

Section: Parameter 1: Tray Arrangementmentioning

confidence: 99%

A Simulation Study of Hybrid Solar Drying Chamber for Agriculture Product

Wong Kar Hao,

Mohd Afzanizam Mohd Rosli,

Jayaprakash Ponnaiyan

et al. 2024

CFDL

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Hybrid solar drying chamber is an application that is widely used today for agriculture products because it can promise the hygiene of the product. However, drying chambers nowadays still lack uniformity in drying products within a drying chamber, leading to food wastage and compromised product quality. This study aims to design an innovative hybrid solar drying chamber system and investigate the uniformity of temperature and velocity within the chamber using Computational Fluid Dynamics (CFD). The methodology involves validating the simulation results by comparing them with existing journal data, with a validation error of less than 5%. A new design is proposed after the validation process, considering factors such as tray arrangement and air inlet size. The results show that a tray arrangement with 0.20 m spacing between each tray provides better uniformity in temperature and air velocity distribution compared to other arrangements. Additionally, an inlet size of 0.05 m2 demonstrates the most suitable temperature distribution for drying purposes, falling within the ideal range of 318 K to 343 K. The study showed that the performance of the drying chamber under different operating conditions has consistent temperature distribution and is suitable for uniform drying. Overall, the proposed hybrid solar drying chamber system offers improved temperature control and uniformity for effective drying process.

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“…Based on the thermal efficiency result, the absorber design with serpentine-shaped shows slightly higher by 53% compared to serpen-Direct design with 52% at a mass flow rate of 0.09 kg/s. There were also the studies on photovoltaic thermal collector equipped with serpentine-shaped collector purposely to reduce the operating temperature whiles increasing its efficiency and energy output of solar panel photovoltaic [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effect Of Design Parameters of Serpentine-Shaped Flat Plate Solar Collector Under Malaysia Climate Conditions

Hanoin

Muhamad

Mokhtar

et al. 2021

ARFMTS

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Solar thermal energy plays a vital role in the industrial sector, especially for water heating applications. Further research to improve the efficiency of flat plate solar collectors by focusing on collector design modification is imperative. This research aimed to carry out an experimental investigation on comparative designs and fabrication approaches that deal with the analysis of flat plate solar collector thermal performance, thermal efficiency, the effect of various mass flow rates, and pressure drop analyses. In this paper, a different design modification of pipe collector with serpentine-shaped was established with different tube diameters (3/4-inch and 3/8-inch), and different pipe spacing (18.5 cm and 27.0 cm). Under the same heat radiation intensity and constant mass flow rate, a pipe collector with a tube diameter of 3/4-inch achieved 3.5% and 9.4% higher thermal performance and collector efficiency respectively compared to the tube diameter of 3/8-inch. Furthermore, the pipe collector with pipe spacing of 18.5 cm exhibited 4.3% and 12.6% higher thermal performance and collector efficiency respectively compared to pipe spacing of 27 cm. The relationship between collector efficiency and temperature difference was also investigated. Moreover, the effect of different mass flow rates was studied upon and it was found that a flow rate of 0.03 kg/s exhibited optimum thermal performance for the pipe collector. Additionally, a pressure drop was observed with the increase in flow rate, while decreases when the fluid temperature increases.

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Validation Study of Photovoltaic Thermal Nanofluid Based Coolant Using Computational Fluid Dynamics Approach

Cited by 9 publications

References 19 publications

The Characteristics of Hybrid Al2O3:SiO2 Nanofluids in Cooling Plate of PEMFC

The Characteristics of Hybrid Al2O3:SiO2 Nanofluids in Cooling Plate of PEMFC

A Simulation Study of Hybrid Solar Drying Chamber for Agriculture Product

Effect Of Design Parameters of Serpentine-Shaped Flat Plate Solar Collector Under Malaysia Climate Conditions

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