Thermohydraulic Analysis on Helical Screw Insert at Different Strips with Nanofluid

Chaurasia, Shashank Ranjan; Sarviya, R. M.

doi:10.2514/1.t5990

Cited by 3 publications

(5 citation statements)

References 29 publications

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“…26,27 In our case study, the temperature range in the natural gas compressor outlet was 40-100°C, and after cooling, the temperature had to be less than 50°C. Previous studies [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] on PHPs at similar temperature ranges showed that R134a, R 22, and acetone could be applied in the present study.…”

Section: Methodsmentioning

confidence: 83%

“…As mentioned before, the working fluid and filling ratio have significant effects on the performance of PHPs. Also, it is important to determine the temperature range to achieve an ideal performance 20 in heat pipes. 21 For this purpose, a minimum and a maximum temperature range must be specified in each application of heat pipes.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, different experiments have been carried out to use PHP in industries. [13][14][15][16][17][18][19][20][21][22][23][24] The innovation of the current paper is the design of a laboratory system through creating similar boundary conditions in a natural gas compressor station. In the natural gas transmission industry, the natural gas temperature is reduced by the use of ACHE; therefore, in this study, for the first time, similar conditions were established in the laboratory system, and laboratory testing was conducted at different velocities of inlet fluid, cooling fan system, and tubes.…”

Section: Introductionmentioning

confidence: 99%

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Investigating different types of fluids in pulsating heat pipes for improving heat transfer in an air-cooled heat exchanger

Alizadeh

Movahedi

Mirzahosseini

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part A:

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Air-cooled heat exchangers are utilized in various industries to cool process fluids. To have a better heat transfer, fins are used in the structure of exchangers. In this study, a set of experiments were performed to investigate the improvement in the amount of heat transfer in an air-cooled heat exchanger. For this purpose, a real case study was conducted on air-coolers in a natural gas compressor station; afterward, the finned tubes were replaced by pulsating heat pipes (PHPs), and a different type of fluid was applied to the pulsating heat pipes. The laboratory system was set up to measure the overall heat transfer coefficient under two conditions involving either finned tubes or a PHP with R134, R22, and filled acetone fluids. Finally, the results were verified by the theory method. The results showed that all the three fluid agents (R134, R22, and Acetone) with natural convection of 9.94 m/s, an inlet fluid velocity of 5.54 m/s, and an average feed velocity were able to enhance the heat transfer coefficient by 10, 13, and 11%, respectively. In addition, compared with finned tubes, R134, R22, and Acetone improved the natural convection heat transfer coefficient by 22.2, 18.6, and 21.7%, respectively.

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Section: Methodsmentioning

confidence: 83%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigating different types of fluids in pulsating heat pipes for improving heat transfer in an air-cooled heat exchanger

Alizadeh

Movahedi

Mirzahosseini

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part A:

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“…In corrugated/ribbed channels, roughness on the surfaces is provided intentionally in order to promote turbulence in the flow field, 10 which thereby enhances the flow intermixing. 11,12 Cooler fluid particles at the center of the channel get replaced by hotter particles near the wall and enhance the HT from the wall to the working fluid (WF). This intermixing also enhances the frictional losses in the flow field.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer enhancement with channel surface roughness: A comprehensive review

Sohal

Kumar

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In various applications such as air conditioning, refrigeration, central heating, and chemical processing, heat losses due to thermal resistance are of considerable amount. To improve the thermo-hydraulic performance of the system involved in such applications, it is required to reduce the thermal resistance. This review article focuses on the works related to heat transfer enhancement using two types of surface roughness that are ribs and corrugations. Ribs and corrugations reduce thermal resistance by increasing surface area and creating perturbation in the flow field. This review article covers various experimental, analytical, and numerical studies related to the thermo-hydraulic performance of different working fluids flowing through the channels incorporated with surface roughness. The effects of using different working fluids that are conventional fluids, nanofluids, and hybrid nanofluids on the heat transfer performance of channels with surface roughness are also studied. Authors believe that this article will provide a basis for the advanced research on the thermo-hydraulic performance assessment of the nanofluids and hybrid nanofluids in the ribbed and corrugated channels, which will help in the enhancement of the performance of the system comprising the application of such channels.

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“…Further, to attain more intensification of residence time in tube, double strip (DS) insert is used instead of single strip (SS) insert which reported good thermal performance by using of conventional thermal performance analysis in our previous investigations from transition to turbulent flow regime. [56][57][58][59][60] Some researchers used exergy destruction analysis to predict thermal performance of thermal systems because exergy destruction shows loss of available energy which increases with increment in friction factor and decreases with increment in heat transfer enhancement. Therefore, for performance optimization of best insert, thermal performance analysis with exergy destruction has been considered.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical thermal performance analysis with exergy destruction on nanofluid flow in tube with double strip helical screw inserts

Chaurasia

Sarviya

2021

Proceedings of the Institution of Mechanical Engineers, Part A:

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Experimental and numerical analysis is arranged with exergy destruction to evaluate thermal performance of system on nanofluid flow in tube with single and double strip helical screw inserts at different values of twist ratio in laminar flow regime. CFD analysis has occurred on the fluent workbench of ANSYS software. The Nusselt number attained enhancement with the flow of nanofluid in double strip helical screw inserts as compared with single strip helical screw inserts at decreasing values of twist ratio and increasing values of Reynolds number. Maximum enhancement of 421% is found with Nusselt number in the flow of nanofluid in tube with double strip helical screw insert at 1.5 of twist ratio and lower value of Reynolds number as compared with the flow of water in plain tube. Common correlations of Nusselt number and friction factor are generated. Exergy destruction number is attained less than one value for both types of inserts at different values of twist ratio and Reynolds number, whereas attained lower value with the flow of nanofluid in tube with double strip helical screw insert at twist ratio of 1.5 and low value of Reynolds number. Heat transfer enhancement number is attained more than one value for both types of inserts with different values of twist ratio and Reynolds number, whereas double strip helical screw inserts attained maximum value at twist ratio of 1.5 in the range of Reynolds number. Therefore, double strip helical screw inserts are the best inserts as compared with single strip helical screw inserts to compact the size of heat exchangers, whereby size of many thermal applications could be compact such as solar water heater, electronic cooling devices, automobile radiator, power plants etc.

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Thermohydraulic Analysis on Helical Screw Insert at Different Strips with Nanofluid

Cited by 3 publications

References 29 publications

Investigating different types of fluids in pulsating heat pipes for improving heat transfer in an air-cooled heat exchanger

Investigating different types of fluids in pulsating heat pipes for improving heat transfer in an air-cooled heat exchanger

Heat transfer enhancement with channel surface roughness: A comprehensive review

Experimental and numerical thermal performance analysis with exergy destruction on nanofluid flow in tube with double strip helical screw inserts

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