Influence of filling ratio on the thermal performance and efficiency of a thermosyphon operating with Al<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e460" altimg="si1.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e468" altimg="si2.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>-water based nanofluids

Gallego, Anderson; Herrera, Bernardo; Buitrago‐Sierra, Robison; Zapata, Camilo; Cacua, Karen

doi:10.1016/j.nanoso.2020.100448

Cited by 23 publications

(1 citation statement)

References 39 publications

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“…The performance of the system may be influenced by several factors, including the selection of the working fluid, the angle of inclination, and the filling ratio (FR) of the working fluid. The disparity can impact the dry out effect and quantity of heat absorption and transfer by the working fluid [20][21][22].…”

Section: Heat Pipesmentioning

confidence: 99%

Performance of Heat Pipe with Different Working Fluid on Harvesting Wasted Heat Energy at Air Cooled Split Unit

Munirah Mahtar,

Chang Choo Khean,

Mohd Hazzah Ahmad Siron

2023

CFDL

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These days, life would not be comfortable without air conditioning which leads to high power consumption due to air conditioning and subsequently increases the carbon footprint. In this research, verification was done on the capability of increasing superheat to improve the performance of the air-cooled split unit and the effect of power consumed by the air conditioning system. The superheat was increased by the heat harvested from the condensing unit of the air-cooled split unit by using a heat pipe. The heat pipe was charged with water, R134a, and R600a with a 100% filling ratio and 90 and 70 inclination angles. K-Type thermocouples, pressure gauges, and power meter were used in data collection. According to data analysis, water with a 90 inclination angle of heat pipe showed the best performance compared to other fluids because of its ability to increase superheat by approximately 32% compared to R600a which increased only approximately 6.5% compared to normal conventional air conditioning. However, it demonstrated that a rise in the superheat at the suction line and a rise in the Coefficient of Performance cannot guarantee a fall in energy usage. This was due to an increase of superheat by the water heat pipe at 90 angle inclination indicating approximately a 28.8% increase in power consumption.

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Section: Heat Pipesmentioning

confidence: 99%

Performance of Heat Pipe with Different Working Fluid on Harvesting Wasted Heat Energy at Air Cooled Split Unit

Munirah Mahtar,

Chang Choo Khean,

Mohd Hazzah Ahmad Siron

2023

CFDL

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Examining the impact of filling ratio on thermosyphon performance in passive energy recovery processes with dual effects of evaporative cooling: An experimental study

Mohsin ALsayah,

Faraj,

Eidan

et al. 2024

Heat Trans

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The thermosyphon heat exchanger contributes significantly to the improvement of energy conservation technology and has been used in multiple applications, raising the possibility of further studies to contribute to increasing the efficiency of heat pipes. This experimental study examines the different filling ratios of pure Acetone liquid inside a WHPHE integrated with the double‐effect of evaporative cooling to improve the energy‐saving technology. This work studies changing the filling ratio of pure acetone working fluid to investigate the effect of the filling ratio on heat exchanger performance in waste energy recovery technology. The heat exchanger was used with four rows and five tubes per row arranged in a staggered manner. The filling ratio of acetone inside the heat pipe was changed from 50% to 100%. The effect of the mass flow rate of air flowing in direct evaporative cooling on energy conservation technology was studied while the mass flow rate of air through indirect cooling remains constant in addition to the effect of ambient temperature. The results showed that the best filling percentage was between 80% at different temperatures, and the highest energy recovery percentage was when it was at the filling percentage of 80% in the presence of evaporative cooling.

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Nanofluids: Definition & Classification

Kumar

Subudhi

2021

Lecture Notes in Mechanical Engineering

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Influence of filling ratio on the thermal performance and efficiency of a thermosyphon operating with Al2O3-water based nanofluids

Cited by 23 publications

References 39 publications

Performance of Heat Pipe with Different Working Fluid on Harvesting Wasted Heat Energy at Air Cooled Split Unit

Performance of Heat Pipe with Different Working Fluid on Harvesting Wasted Heat Energy at Air Cooled Split Unit

Examining the impact of filling ratio on thermosyphon performance in passive energy recovery processes with dual effects of evaporative cooling: An experimental study

Nanofluids: Definition & Classification

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