Enhancing the thermal properties of organic phase change material (palmitic acid) by doping MXene nanoflakes

Krishna, Yathin; Saidur, R.; Aslfattahi, Navid; Faizal, Mohd; Ng, Khai Ching

doi:10.1063/5.0001366

Cited by 13 publications

(12 citation statements)

References 30 publications

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“…The solar site investigated in the present study is Taylor's University lakeside campus (TULC), Malaysia located in the West of Malaysia with a coordinate of 3.0750°N, 101.5911°E [9]. Figure 1 shows a schematic diagram of the rooftop area of Block A, B, C, D, and E on TU.…”

Section: Site Informationmentioning

confidence: 99%

“…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%

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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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Section: Site Informationmentioning

confidence: 99%

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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“…The experimental results showed better thermophysical properties like melting point (<100 ⁰C), viscosity (< 0.003 Pa•s at 190 ⁰C), and high-temperature stability (>500 ⁰C) is obtained in this range of a mass fraction of KNO3, LiNO3, and Ca(NO3)2. Due to their low melting point, which is less than the melting point of Hitec XL (120 ⁰C), and high-temperature stability, which is higher than the conventional organic HTF [78], KNO3:LiNO3:Ca(NO3)2 will lead to higher Rankine Cycle efficiency. Therefore, these special eutectic salts make them more suitable for HTF and TES replacing synthetic oils in PTC plants.…”

Section: Molten Salts As Heat Transfer Fluidmentioning

confidence: 99%

“…Therefore, ethylene glycol-based nanofluids can be used for those PTC power plants which do not have the requirement for thermal energy storage. Furthermore, works can be done in the enhancement of thermal conductivity by using a special kind of nanomaterials like Graphene and MXenes [78].…”

Section: Progress In Obtaining Stable Nanofluidmentioning

confidence: 99%

State-of-the-art heat transfer fluids for parabolic trough collector

Krishna

Faizal

Saidur

et al. 2020

International Journal of Heat and Mass Transfer

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149

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Solar thermal energy conversion is gaining more attention among researchers due to the recent development in nanofluids and molten salt technology. Among various solar collectors, parabolic trough collector has received significant attention from researchers due to their operating temperature range (60-240 °C) feasible for power generation. Parabolic trough collector is currently having a higher number of installations compared to other concentrated solar power technology around the globe. Most of the conventional heat transfer fluid used in PTC has poor heat transfer and light to heat conversion properties. Therefore, it is advantageous to enhance the thermophysical properties of heat transfer fluid to improve the overall efficiency of the system. Well-engineered nano-enhanced heat transfer fluid is advantageous because a very low mass fraction of nanoparticles bring considerable enhancement in thermophysical properties. This paper focuses on the most recent advancement in heat transfer fluids, their preparation, and stability issues when doped with nanoparticles. Various heat transfer fluids currently used in parabolic trough collectors and the nano-enhanced heat transfer fluids having the properties better than conventional heat transfer fluids are compared and their preparation methods and properties are discussed.Enhancement of thermophysical properties of molten salts by doping nanoparticles and their enhancement in thermal stability at high temperature, the possibility of using mono and hybrid nanofluid, ionic liquids, gaseous heat transfer fluid, and vegetable oil as the heat transfer fluid in parabolic trough collectors are the key highlights of this review.

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“…Enhancement in thermal properties such as thermal conductivity due to the presence of nanoparticles has attracted great interest of researchers, but instability of nano-size solid particles in the basefluid, especially at high concentrations, Sustainability 2021, 13, 5659 2 of 15 still remains a challenge in its application [12][13][14][15]. Many studies have been conducted on the fundamental properties, application, and characterization of different types of nanoparticles dispersed in different base fluids [16][17][18][19]. However, application of nanoparticle in a low temperature base fluid such as refrigerant remains unknown because of the difficulties during measuring the fundamental properties of the mixture and liquid-to-vapor phase change of the fluid.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Energy Efficiency Analysis of a Domestic Refrigerator Using Al2O3 Nano-Refrigerant

Javadi

Saidur

2021

Sustainability

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Refrigeration systems have experienced massive technological changes in the past 50 years. Nanotechnology can lead to a promising technological leap in the refrigeration industry. Nano-refrigerant still remains unknown because of the complexity of the phase change process of the mixture including refrigerant, lubricant, and nanoparticle. In this study, the stability of Al2O3 nanofluid and the performance of a nano-refrigerant-based domestic refrigerator have been experimentally investigated, with the focus on the thermodynamic and energy approaches. It was found that by increasing the nanoparticle concentration, the stability of nano-lubricant was decreased and evaporator temperature gradient was increased. The average of the temperature gradient increment in the evaporator was 20.2% in case of using 0.1%-Al2O3. The results showed that the energy consumption of the refrigerator reduced around 2.69% when 0.1%-Al2O3 nanoparticle was added to the system.

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Enhancing the thermal properties of organic phase change material (palmitic acid) by doping MXene nanoflakes

Cited by 13 publications

References 30 publications

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

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

State-of-the-art heat transfer fluids for parabolic trough collector

Thermodynamic and Energy Efficiency Analysis of a Domestic Refrigerator Using Al2O3 Nano-Refrigerant

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