The CFD analysis of flat plate collector-nanofluid as working medium

Krishna, Yathin; Razak, R. K. Abdul; Afzal, Asif

doi:10.1063/1.5079021

Cited by 12 publications

(4 citation statements)

References 9 publications

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“…The numerical outcomes also showed that when the volumetric concentration (0.5% vol) was a good improvement in the efficiency of (FPCS), and any further raise in volumetric concentrations This will have a detrimental influence on thermal efficiency. Krishna et al [44] used Software-Ansys (Fluent) to simulate (FPSC) in which different nanofluids (Al₂O₃ and CuO) are used to determine which one improves the efficiency of the collector the most. The probe was performed at different concentrations (flow rates and volume) as well.…”

Section: Mono Nanofluidmentioning

confidence: 99%

Performance Improving for the Flat Plate Solar Collectors by Using Nanofluids: Review Study

Mohammed A. Abduljleel,

Nabil J. Yasin,

Safaa A. Ghadhban

et al. 2024

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In this paper, the literature will be reviewed, and various research works conducted to improve the thermal performance of flat panel solar collectors will be summarized. It will be summarized in more than one way. Firstly, by design using different methodologies and methods to improve the efficiency and the thermal performance of the solar collector by introducing twisted strips that cause increased mixing. Fluids and Friction for FPSCs. To increase heat transfer as well as use porous materials to enhance heat and improve the effectiveness of absorption panels to absorb as much solar radiation as possible as well as thermal insulation methods to reduce losses to surrounding areas. And improve the permeability of the glass cover. Secondly, the use of nanofluids enhances the performance of flat solar collectors instead of the core fluid, and its effect is to improve the thermophysical properties such as thermal conductivity by summarizing previous research using mono nanofluids and hybrid nanofluids. Through studies and research related to the use of mono nanofluids, it was noted that the best nanofluids are those that use CuO and Al₂O₃ particles due to their ease of availability and high thermal conductivity. As for hybrid nanofluids, the best fluids are (CuO + Al₂O₃/water) for the same reason above. As a result of design improvements and the use of nanofluids, temperatures up to (75C°) were obtained.

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Section: Mono Nanofluidmentioning

confidence: 99%

Performance Improving for the Flat Plate Solar Collectors by Using Nanofluids: Review Study

Mohammed A. Abduljleel,

Nabil J. Yasin,

Safaa A. Ghadhban

et al. 2024

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“…They reported a ten percent improvement in thermal efficiency. Krishna et al (2018) conducted numerical trials to find better nanofluid for heat transfer in solar flat plate collector. They used ANSYS fluent software and stated that CuO shows higher efficiency than Al2O3.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Comparison of Parabolic Trough Collector (PTC) Using Various Nanofluids

Shirole

Wagh

Kulkarni

2021

Int. J. Renew. Energy Dev.

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The objective of this paper is to investigate the theoretical performance of Parabolic Trough Collector (PTC) using various nanofluids. The theoretical performances are calculated for Al2O3, graphite, magnetite, SWCNH, CuO, SiO2, MWCNT, TiO2, Fe2O3, and ZnO in water nanofluids. The heat transfer equations, thermodynamic properties of nanofluid and pumping power are utilised for the development of novel thermal model. The theoretical thermal efficiency of the PTC is calculated, and the economic viability of the technology is predicted for a range of nanofluid concentration. The results showed that the thermal conductivity increases with the concentration of nanoparticles in the base fluid. Magnetite nanofluid showed the highest thermal efficiency, followed by CuO, MWCNT, ZnO, SWCNH, TiO2, Fe2O3, Al2O3, graphite, and SiO2, respectively. The study reveals that MWCNT at 0.4% concentration is the best-suited nanofluid considering thermal gain and pumping power. Most of the nanofluids achieved optimum efficiency at 0.4% concentration. The influence of mass flow rate on thermal efficiency is evaluated. When the mass flow rate increased from 70 Kg/hr to 90Kg/hr, a 10%-20% efficiency increase is observed. Dispersing nanofluids reduces the levelized cost of energy of large-scale power plants. These findings add to the knowledge of the scientific community aimed explicitly at solar thermal energy technology. The report can also be used as a base to pursue solar thermal projects on an economic basis.

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“…As such, solar PV systems like the grid-connected, off-grid, large-scale solar (LSS), and building integrated (BIPV) are considered the most sustainable and accessible types of systems to provide renewable energy [5][6][7]. Researches have been carried out throughout the world to enhance the efficiency of PV and energy storage technology by enhancing the mechanical, structural, and heat-dissipating properties of PV cells and making this technology more reliable and accessible to the public [8][9][10][11][12][13][14][15]. Malaysia predominantly dependent on conventional power generation; relying mostly on coal, natural gas, and large hydropower.…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of a rooftop PV System in Taylor’s University Lakeside Campus

Krishna

Faizal

Gan

2021

J. Phys.: Conf. Ser.

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Solar photovoltaic (PV) system is proven to be a future-proof type of power generation for growing economies. There are almost zero pollutants released, low maintenance cost with high reliability as the lifespan of a solar PV stretches up to 30 years, a well-sought alternative form of sustainable energy. Moreover, the electricity consumption in Taylor’s University (TU), Malaysia is very high, as a consequence, a huge fraction of the fund is used to settle an RM450,000 electricity bill on average annually. In this paper, the study focused on how to reduce electricity consumption in TU by proposing a design of a comprehensive solar PV system. PVSYST and Sketchup software are used to design and analyze the PV system. In the present study, a Grid-Connected Photovoltaic (GCPV) mounted on the available roof space of TU is investigated. Also, a detailed economic analysis that includes the payback period and annual savings achieved through the proposed PV installation is analyzed. Annual savings of RM 267,621.00 can be made upon utilizing the proposed idea. Besides that, TU would be able to recover the initial investment cost in approximately 8 years of payback period, proving that the implementation of a 433kWp of solar PV unit is a smart option to address the sustainable energy goals.

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The CFD analysis of flat plate collector-nanofluid as working medium

Cited by 12 publications

References 9 publications

Performance Improving for the Flat Plate Solar Collectors by Using Nanofluids: Review Study

Performance Improving for the Flat Plate Solar Collectors by Using Nanofluids: Review Study

Thermal Performance Comparison of Parabolic Trough Collector (PTC) Using Various Nanofluids

Design and simulation of a rooftop PV System in Taylor’s University Lakeside Campus

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