A CFD study of IGV vane number on hydraulic characteristics and pressure pulsation of an is centrifugal pump

Hou, Hucan; Zhang, Yongxue; Li, Zhenlin; Zhang, Yuan

doi:10.21595/jve.2016.17306

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…The pump performance was improved at a vane angle of 25 • , weakening the vortex flow at the pump inlet. Hou et al [14] studied the effect of the number of IGV vanes on the hydraulic characteristics and suggested a six-vane design for a higher head and better efficiency. It is evident from the literature that an IGV is capable of regulating the pre-swirl at the impeller inlet.…”

Section: Introductionmentioning

confidence: 99%

Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump

Shamsuddeen

Kim

et al. 2021

Processes

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A multistage centrifugal pump was developed for high head and high flow rate applications. A double-suction impeller and a twin-volute were installed at the first stage followed by an impeller, diffuser and return vanes for the next four stages. An initial design feasibility study was conducted using three-dimensional computational fluid dynamics tools to study the performance and the hydraulic losses associated with the design. Substantial losses in head and efficiency were observed at the interface between the first stage volute and the second stage impeller. An inducer-type guide vane (ITGV) was installed at this location to mitigate the losses by reducing the circumferential velocity of the fluid exiting the volute. The ITGV regulated the pre-swirl of the fluid entering the second stage impeller. The pump with and without ITGV is compared at the design flow rate. The pump with ITGV increased the stage head by 63.28% and stage efficiency by 47.17% at the second stage. As a result, the overall performance of the pump increased by 5.78% and 3.94% in head and efficiency, respectively, at the design point. The ITGV has a significant impact on decreasing losses at both design and off-design conditions. An in-depth flow dynamic analysis at the inducer-impeller interface is also presented.

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Section: Introductionmentioning

confidence: 99%

Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump

Shamsuddeen

Kim

et al. 2021

Processes

View full text Add to dashboard Cite

show abstract

“…Experiments have been conducted in the past by Lee et al (2004), Jungowski and Weiss (1996) and McKee (1992). Vetter and Schweinfurther (1987), Zhao, Xiao, Wang, Luo, and Cao (2018) and Hou, Zhang, Li, and Zhang (2017) investigated pressure pulsation in a reciprocating pump. Vetter and Schweinfurther (1987) presented a calculation approach to model precisely different pump installations.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of pressure pulsation effects of a snubber in a CNG station for increasing measurement accuracy

Farzaneh–Gord

Faramarzi

Ahmadi

et al. 2019

Engineering Applications of Computational Fluid Mechanics

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Natural companies employ turbine flow meters to measure natural gas which delivered to Compressed Natural Gas stations. The stations utilize compressors to increase pressure. The compressor produces a flow pulsation, which affects the accuracy of the measurement. The main aim of this article is to decrease the compressor effects on measurement accuracy by utilizing a snubber between the turbine flow meter and the reciprocating compressors. For this aim, numerical modeling has been built to simulate natural gas flow through a snubber. The effects of various snubber parameters on pressure pulsation have been investigated. The parameters included snubber volume to the minimum volume ratio, the ratio of height to diameter, outlet pipe length, and the existence and non-existence a buffer. The Ansys Fluent has been used for numerical modeling with transient analysis. Results show that in H/D value of 3, the maximum reduction in the percentage of pressure pulsation drop is about 47% and increasing the outlet pipe length to the 10 times of initial length causes a decrease of about 83% in pressure pulsations. Besides, for the ratio of snubber volume to the minimum volume from 1 to 16.7, the amplitude of pressure pulsations decreases from 4.1% to 0.25%.

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Fluid dynamic analysis of liquefied natural gas flow through a cryogenic ball valve in liquefied natural gas receiving stations

Lin

Li²,

Jin

2021

Energy

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A CFD study of IGV vane number on hydraulic characteristics and pressure pulsation of an is centrifugal pump

Cited by 7 publications

References 19 publications

Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump

Effect of an Inducer-Type Guide Vane on Hydraulic Losses at the Inter-Stage Flow Passage of a Multistage Centrifugal Pump

Numerical simulation of pressure pulsation effects of a snubber in a CNG station for increasing measurement accuracy

Fluid dynamic analysis of liquefied natural gas flow through a cryogenic ball valve in liquefied natural gas receiving stations

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