Optimization of a Centrifugal Boiler Circulating Pump's Casing Based on CFD and FEM Analyses | Zendy

Zuo Zhigang | Zendy; Liu Shuhong | Zendy; Fan Yizhang | Zendy; Wu Yulin | Zendy

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Optimization of a Centrifugal Boiler Circulating Pump's Casing Based on CFD and FEM Analyses

Author(s) -

Zuo Zhigang,

Liu Shuhong,

Fan Yizhang,

Wu Yulin

Publication year - 2014

Publication title -

advances in mechanical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.318

H-Index - 40

ISSN - 1687-8132

DOI - 10.1155/2014/532892

Subject(s) - casing , finite element method , computational fluid dynamics , boiler (water heating) , mechanical engineering , drum , engineering , structural engineering , centrifugal pump , petroleum engineering , impeller , waste management , aerospace engineering

It is important to evaluate the economic efficiency of boiler circulating pumps in manufacturing process from the manufacturers' point of view. The possibility of optimizing the pump casing with respect to structural pressure integrity and hydraulic performance was discussed. CFD analyses of pump models with different pump casing sizes were firstly carried out for the hydraulic performance evaluation. The effects of the working temperature and the sealing ring on the hydraulic efficiency were discussed. A model with casing diameter of 0.875 D 40 was selected for further analyses. FEM analyses were then carried out on different combinations of casing sizes, casing wall thickness, and materials, to evaluate its safety related to pressure integrity, with respect to both static and fatigue strength analyses. Two models with forging and cast materials were selected as final results.

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