An experimental and numerical investigation of air side heat transfer and flow characteristics on finned plate configuration

Gu, Lihao; Ling, Xiang; Peng, Hao

doi:10.1007/s00231-012-1017-7

Cited by 10 publications

(5 citation statements)

References 9 publications

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“…Gu et al, [28] The heat transfer and flow properties of a novel type of (FPHE) with extraordinarily low-pressure drop at the gas side were studied. They used experimental and computational methods to calculate the new structure's convective heat transfer and pressure drop.…”

Section: Offset Strip Finsmentioning

confidence: 99%

Enhancement Of Plate-Fin Heat Exchanger Performance with Aid of Various Types of Fin Configurations: A Review

Abbas

Mohammed

2022

ARFMTS

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This study is a review of recent studies on heat transfer enhancement in plate fin-heat exchangers (PFHE) with plain and offset (OSF) fins. Thermal designing parameters such as the coefficient of heat transfer, Nusselt number, hydraulic diameter, Colburn factor (j), friction factor (f) and Reynold's number of PFHE was presented in this review for both straight and offset types. According to the results, by replacing plain fins into OSF, the pressure increases because of the increasing of f-factor, while there is a significant increase in Nusselt number and then the heat transfer. The j & f factors, are the most essential two parameters of researching the heat exchanger that were represented as functions of Reynolds number and other geometrical parameters. At the same Reynolds number, the J-factor declines and the friction factor f increases as the fin pitch increases for the same fin height and fin thickness.

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Section: Offset Strip Finsmentioning

confidence: 99%

Enhancement Of Plate-Fin Heat Exchanger Performance with Aid of Various Types of Fin Configurations: A Review

Abbas

Mohammed

2022

ARFMTS

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“…1. The dimension of the equivalent model as follow [4][5][6]: the sectional area of the nozzle diameter is S=12.5 mm 2 , the air inlet diameter is D 0 =5.5 mm, the mixer tube diameter is D 1 =8 mm, and L 1 =10 mm, L 2 =16 mm, L 3 =24 mm, other simulation variables were d, V and L. Fig. 1 The structure of the burner The main operating process as follow, the air and the gas entered the burner at the same time, and mixture in the contraction suction evenly, the residual pressure were formed in the bottom of the burner diffusion outlet, and conquer the resistance loss of the gas in the front of the burner, and made the gas-air mixture obtain the outlet velocity in the fire hole outlet, the outlet velocity could ensure the outlet flame in a stable state and the temperature of combustion.…”

Section: The Model and Operating Principle Of The Burnermentioning

confidence: 99%

Numerical Simulation and Experimental Study on Tar Decomposition of Low-Pressure Ejection Type Burner

Qing

Zhu

Zhang

et al. 2015

AMR

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The tar decomposition of low-pressure ejection type burner was researched. The burner used software to simulate and analyse impact of the nozzle diameter d, the gas flow rate V and the distance of the nozzle to the wall L on tar cracking. The orthogonal test were used for design parameters d, V and L, the optimization values of these three parameters were carried out, and experimental method was used for test the numerical simulation results. Numerical simulation and experimental results showed that the greatest impact on tar cracking is the nozzle diameter d, the minor effect is the distance of the nozzle to the wall L and the weakest effect is the gas flow rate V, and when the nozzle diameter d=4 mm, the distance L=18 mm and the gas flow rate V=0.10 m3/h, the tar cracking is the most efficiency.

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“…Shell and tube heat exchangers (STHXs) have been the most widely used equipment in the industrial fields [1,2] . In STHXs, supporting parts not only provide the supporting function for the tubes but also play a spoiler role for fluid flow, which is an important part in STHXs.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the previous researches, a new sextant fan baffle is put forward in this paper. In addition, fluent numerical simulations can offer the only cost-effective means and a good repeatability for realistic process simulations [2][3] . 3-dimensional physical model of the sextant fan baffled heat exchanger was built, CFD software was used to obtain detailed shell side fluid flow and heat transfer performances.…”

Section: Introductionmentioning

confidence: 99%

Performances of Heat Transfer and Fluid Flow in the Shell and Tube Heat Exchanger with Novel Sextant Fan Baffles

Jin¹,

Fang²,

Zhan³

et al. 2015

Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering

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For the high shell side pressure drop of the traditional segmental baffled heat exchanger, a novel sextant fan baffled heat exchanger was put forward in this paper. The 3-dimensional physical model of the novel sextant fan baffled heat exchanger was built, CFD software was used to obtain detailed shell side fluid flow behavior and heat transfer performances, comparison was also made between the new and the traditional segmental baffled heat exchanger. Results show that the pressure drop of the new sextant fan baffled heat exchanger is about 72.3-74.6% greater than that of the traditional segmental baffled heat exchanger under the import velocity of shell side from 2 to 10 m 3 /h. When the import velocity is low, the difference of heat transfer coefficient between the two heat exchangers is minor, and the comprehensive performance of the new sextant fan baffled heat exchanger is 33.14-65.25% greater than that of the heat exchanger with traditional segmental baffles under various import velocities.

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An experimental and numerical investigation of air side heat transfer and flow characteristics on finned plate configuration

Cited by 10 publications

References 9 publications

Enhancement Of Plate-Fin Heat Exchanger Performance with Aid of Various Types of Fin Configurations: A Review

Enhancement Of Plate-Fin Heat Exchanger Performance with Aid of Various Types of Fin Configurations: A Review

Numerical Simulation and Experimental Study on Tar Decomposition of Low-Pressure Ejection Type Burner

Performances of Heat Transfer and Fluid Flow in the Shell and Tube Heat Exchanger with Novel Sextant Fan Baffles

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