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

Jin, Mei; Fang, Jiaojiao; Zhan, Lihua; Liu, Hongjiao

doi:10.2991/aeece-15.2015.25

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…However, the j/f ratio for plain cases considers the decreasing tendency to be smaller than convexstrip with increasing Reynolds numbers. This is because pressure losses in the convex-strip case are greater than in the plain case [25,39]. For the plain case, the blocking effect on the flow is smaller than in the convex-strip case.…”

Section: Figure 16 London Goodness Factors On Plain Fin and Convexstr...mentioning

confidence: 94%

Heat Transfer Intensification by Means of Convex-Strip Around Tube in Fin and Tube Heat Exchanger with Field Synergy Principle

Syaiful¹,

Yoel²,

Sinaga³

et al. 2022

IJHT

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Fin and tube is a compact heat exchanger, have been widely used in various engineering fields such as heating, ventilation, air conditioning, and refrigeration systems. An example, indoor and outdoor air-conditioning, the air is used as one of the heat exchanger media. However, over 90% of the total thermal resistance from air to liquid lies on the airside. Therefore, the reduction of thermal resistance should be made to increase heat transfer. This study is intended to investigate the effect of enhancing convex-strip surface to heat transfer and friction characteristic on the heat exchanger. Three-dimensional modeling of the convex fin and the plain fin was conducted on a constant tube temperature of 106℃. Tube with the configuration of the six staggered strands on the odd tube and five rows on the even tube is determined. The velocity variation in the fin gap is assessed under the Reynolds number range between 3,438 to 15,926. The enhancement of four convex-strips around the tube on the fin surface can generate the value of the field synergy angle on fluid flow. The simulation results also show that the improvement of convection heat transfer coefficient value in convex-strip fin with staggered configuration is 15.39% higher than plain-fin.

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Section: Figure 16 London Goodness Factors On Plain Fin and Convexstr...mentioning

confidence: 94%

Heat Transfer Intensification by Means of Convex-Strip Around Tube in Fin and Tube Heat Exchanger with Field Synergy Principle

Syaiful¹,

Yoel²,

Sinaga³

et al. 2022

IJHT

View full text Add to dashboard Cite

show abstract

“…According to research conducted by [11,12], it is said that the fouling factor will increase if the fluid flow rate is minimal. In their international journal, [13,14] proved by research that heat transfer also increases and the fouling rate decreases with an increase in fluid flow velocity. Thus, the fluid flow velocity with the fouling factor is inversely proportional.…”

Section: Effect Of Fluid Flow Rate On Fouling Factormentioning

confidence: 99%

Influence of Fluid Inflow Rate on Performance Effectiveness of Shell and Tube Type Heat Exchanger

Wardhani¹,

Labumay²,

Ningsih

2022

JMESI

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In industrial processes, heat exchangers are needed to transfer a certain amount of heat energy from the system to the environment. The research object observed using a heat exchanger type 1- 2 shell and a tube was water in hot and cold fluids. It aimed to determine the relationship between hot and cold fluids and the heat transfer coefficient, fouling factor, and tool efficiency. The research method varied the hot water by 50, 70, 90, 100 mL/s and the cold water by 20, 40, 60, 80 mL/s. After getting the data for each fluid's inlet and outlet temperatures, the effectiveness analysis was calculated. The research results on the hot fluid variable demonstrated that the more the fluid was flowing into the shell, the higher the heat transfer coefficient, heat transfer velocity, and average effectiveness. Meanwhile, the fouling factor tended to decrease along with the increasing hot fluid. The cold fluid variable, the higher the cold fluid flows into the tube, the higher the heat transfer coefficient and the average heat transfer velocity. Furthermore, the fouling factor and effectiveness tended to decrease along with the increasing cold fluid flow.

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

Cited by 2 publications

References 3 publications

Heat Transfer Intensification by Means of Convex-Strip Around Tube in Fin and Tube Heat Exchanger with Field Synergy Principle

Heat Transfer Intensification by Means of Convex-Strip Around Tube in Fin and Tube Heat Exchanger with Field Synergy Principle

Influence of Fluid Inflow Rate on Performance Effectiveness of Shell and Tube Type Heat Exchanger

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