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http://dx.doi.org/10.7731/KIFSE.2015.29.2.033

A Study on Fluid Flow Analysis of High Pressure Positive Displacement Pump without Clearance  

Min, Se-Hong (Dept. of Fire & Disaster Protection Engineering, Gachon Univ.)
Kim, Ho-Chul (Dept. of Fire & Disaster Protection Engineering, Graduate School Industry Environment, Gachon Univ.)
Publication Information
Fire Science and Engineering / v.29, no.2, 2015 , pp. 33-38 More about this Journal
Abstract
For the purpose of high-pressure and suction of fixed amount, the development of ultra-high pressure rotating helical gear positive displacement pump with no clearance had been proceeded. The CFD analysis was performed to verify the internal pressure and the discharge flow velocity of the pump. Accordingly, a flow analysis were performed by FVM technique and we were unable to obtain a successful result since the fluid domain is separated because the grid is not configured in a row in FVM flow analysis of the fully enclosed type without clearance. Because of these problems, the flow analysis was performed by MPS method which grid configuration is not needed and the internal pressure and the discharge flow velocity of the pump were confirmed through the MPS flow analysis. At 1,000 rpm rotation speed of the rotor, the minimum internal pressure of the pump was 19.5 bar, maximum pressure was 44.6 bar and average pressure was 33.9 bar. And the minimum discharge flow velocity was 64.5 m/s, maximum discharge flow velocity was 84.8 m/s and average discharge flow velocity was 76.1 m/s. Through this study, we could confirm that MPS method was more suitable than FVM method in terms of flow analysis with no clearance. In addition, the relationship of the flow velocity according to the change of ultra-high pressure rotating helical gear positive displacement pump could be identified through this study.
Keywords
FVM; MPS; High pressure positive displacement pump; Flow analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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