Numerical investigation on gas flow heat transfer and pressure drop in the shell side of spiral-wound heat exchangers

Tang, Qixiong; Chen, GaoFei; Yang, Zhiqiang; Shen, Jun; Gong, Maoqiong

doi:10.1007/s11431-017-9176-9

Cited by 12 publications

(1 citation statement)

References 25 publications

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“…Through experiments, Sharqawy et al 9 studied the influence of the flow structure on the performance of a heat exchanger, and Hu et al 10 established a heat transfer coefficient formula for mixed hydrocarbon refrigerant shellside boiling. Tang et al 11 found that the pressure drop and heat transfer coefficient of a gas-phase fluid on the shell side decreased with an increase in the winding angle. By establishing a three-dimensional numerical model, Zeng et al 12 found that geometric parameters, such as the outer diameter of the heat exchange tube, number of layers of the heat exchange tube, and axial spacing of the first layer of the heat exchange tube, have an important influence on the heat transfer performance and flow performance.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effect of Pitch Sloshing on the Heat Transfer and Pressure Drop of an LNG Spiral-Wound Heat Exchanger

Dong¹,

Hao²,

Wu³

et al. 2023

ACS Omega

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With the development and utilization of offshore liquefied natural gas, it is increasingly important to study the influence of the heat transfer performance of a spiral-wound heat exchanger under sloshing conditions. This study focused on the effects of different sloshing amplitudes and sloshing periods on the heat transfer and pressure drop performance of a heat exchanger. Through experimental research, the results showed that the fluctuation of the UA (U is the heat transfer coefficient; A is the heat exchange area) value first increased and then decreased with an increase in the sloshing amplitude. The UA value increased by 12.92% and decreased by 42.03% compared to the static value at 3 and 9°, respectively. The fluctuation in the UA value first decreased and then increased with an increase in the sloshing period. The UA value decreased by 36.66% and increased by 10.82% slowly compared to the static value when the sloshing period was 6 and 20 s, respectively. Based on this, a mathematical model of heat transfer under the condition of pitch sloshing was established.

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