Effects of nanofluids on heat transfer characteristics of a two-phase closed thermosyphon

Kamyar, A.; Ong, Kok Seng; Saidur, R.

doi:10.1016/j.ijheatmasstransfer.2013.06.046

Cited by 77 publications

(18 citation statements)

References 36 publications

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“…The performance of heat is enhanced at different positions of heat pipe. A. Kamyar, et al [71] in their research with thermosyphon heat pipe with two phase stated that pipes are the devices which can transfer heat from heat sink with a minute temperature difference most of these heat pipes fabricated with screen mesh, sintered powder or machined grooves as wick…”

Section: Overall Data Assessmentmentioning

confidence: 99%

Research on Water Based Nano Fluids Effecting Thermal Performance of Heat Pipe

Reddy¹,

Reddy²,

Rajulu³

2019

IJRTE

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Heat transfer applications are most investigative area with the evolution of micro chips in electronics field; thermal equilibrium maintenance becomes a challenging task in heat pipes because of their reliability, simple structure as well as cost. Heat pipe is one of the well known heat transfer device, can transport large quantity of heat from one place to another without any additional power. Working fluid has its role on performance on the basis of its conductivity, because heat pipes have high thermal conductive nature. This review focuses on the submission of Nano-fluids in place of conventional fluids used in heat pipe. This paper reveals the researches on thermosyphons, heat pipes and oscillating heat pipes, for reduction in thermal resistance, enhancing the thermal efficiency and heat transfer coefficient of a heat pipe. Various input parameters and their ranges those affect the performance of heat pipe like heat input, angle of inclination, filling ratio, Nanoparticle material, size, shape and concentration of Nano-fluid, considered in different studies has been reviewed.

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Section: Overall Data Assessmentmentioning

confidence: 99%

Research on Water Based Nano Fluids Effecting Thermal Performance of Heat Pipe

Reddy¹,

Reddy²,

Rajulu³

2019

IJRTE

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“…heat exchangers and heat pipes [15][16][17]. Kamyar et al [18] examined the effects of nanofluids on the performance of TS. Results indicate that both nanofluids improve the proficiency through a reduction in thermal resistance by 65 % (at 0.05 % volume for Al2O3) and 57 % (at 0.075 % volume for TiSiO4).…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Evaporator Section Tilted Angle and Filling Ratio on the Thermal Charateristics of a Two-phase Closed Thermosyphon

Goldoust¹,

Emami²,

Ranjbar³

2019

IJHT

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An experimental study was conducted in order to investigate the effect of filling ratio (F.R) and tilted angle (Φ) of the evaporator section on the thermal efficiency in a two-phase closed thermosyphon (TS) with the vertical condenser and adiabatic sections. Therefore, a copper tube with inner diameter of 14.5 mm was used with distilled water in the filling ratio 15 % to 60 % and input heat 100 to 250 watt. The evaporator section of TS (from the junction of an adiabatic section) is bent and compare with vertical positions. Through this study, it was found that optimum of F.R was 45 % and the best-tilted angle for the evaporator was 60º relative to the horizontal axis. Also, the boiling heat transfer coefficient rises about 15.2 % when the evaporator section will be bent 60º in optimized filling ratio. Furthermore, boiling heat transfer coefficient obtained from the experimental results of this research were compared with Rohsenow's correlation, who showed good agreement.

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“…On the other hand, a thermosyphon is a heat exchanger for efficient energy transfer. Such technology consists of an evacuated closed tube filled with a certain amount of working fluid; it is designed based on free convection, and it does not require mechanical equipment to move the fluid [31][32][33]. Thermosyphons are widely used in thermal engineering applications, mainly waste heat recovery, and their high efficiency is achieved thanks to the phase change of the working fluid.…”

Section: Introductionmentioning

confidence: 99%

“…Thermosyphons are widely used in thermal engineering applications, mainly waste heat recovery, and their high efficiency is achieved thanks to the phase change of the working fluid. The heat transfer mechanism consists of boiling and evaporating a fluid in the evaporator section and transporting the vapor to the condenser section, where heat is recovered for an external source [31].…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of a Diesel Cogeneration System for Producing Power and Drying Aromatic Herbs

et al. 2019

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The focus of this work was to evaluate the thermal performance of a cogeneration system used to produce power and dry aromatic herbs. The waste heat from the exhaust gases of the diesel engine was recovered to heat air using a thermosyphon heat exchanger. The heated air was employed in a convective tray dryer in order to dry Origanum vulgare, Mentha spicata, and Ocimum basilicum. The experiments were carried out at full load in a stationary compression ignition engine coupled to a generator. The maximum global energy efficiency of the cogeneration system was 40.14%, and the effectiveness of the heat exchanger achieved 39%.

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Effects of nanofluids on heat transfer characteristics of a two-phase closed thermosyphon

Cited by 77 publications

References 36 publications

Research on Water Based Nano Fluids Effecting Thermal Performance of Heat Pipe

Research on Water Based Nano Fluids Effecting Thermal Performance of Heat Pipe

Experimental Investigation of the Evaporator Section Tilted Angle and Filling Ratio on the Thermal Charateristics of a Two-phase Closed Thermosyphon

Experimental Evaluation of a Diesel Cogeneration System for Producing Power and Drying Aromatic Herbs

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