Cavitation and Recirculation Field Problems
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مساله کاویتاسیون و چرخش سیال در پروانه پمپ سانتریفوژ از مسایل مهمی است که بر عملکرد پمپ ها و قابلیت اطمینان آنها به شدت اثر گذار می باشد و طراحان پمپ ها و همچنین کسانی که در زمینه انتخاب پمپ ها فعال هستند می بایست به اثر این موارد آگاه بوده و آنها را لحاظ نمایند. در این مقاله به این مباحث پرداخته می شود.
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Centrifugal Pumps
Second edition
Johann Friedrich Gülich
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Centrifugal Pumps
حجم: 18.2 مگابایت
Centrifugal pump design and application
By: Val. S. Lobanoff
Robert R. Ross
این هندبوک از یکی از معتبرترین کتاب ها در زمینه طراحی پمپ های سانتریفوژ می باشد که در بین طراحان پمپ به هندبوک لوبانف شهرت دارد. این کتاب شامل مباحث طراحی هیدرولیکی و مکانیکی پمپ های سانتریفوژ و همچنین مبحث کاربرد آنها می باشد. در بخش پابانی کتاب هم به بحث افزایش طول عمر پمپ و بهبود عملکرد پمپ ها پرداخته شده است.
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01-Centrifugal pump design and application-Part 1
حجم: 5.44 مگابایت
02-Centrifugal pump design and application-Part 2
حجم: 13.4 مگابایت
03-Centrifugal pump design and application- Part 3&4
حجم: 15 مگابایت
Panel Discussion on Inducer Design Criteria
معیار های طراحی ایندیوسر
This article reports a panel discussion titled Inducer Design Criteria presented at the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-9). The presentations of the panelists and the subsequent discussions are summarized. It is shown that cavitation instabilities are major problems in modern turbopumps and that design criteria to eliminate them are needed. Available design methods for inducers and marine propellers are reviewed, and new criteria to enhance stability are proposed. The current status of CFD is reviewed and an example of successful application is shown. Discussions of several specific topics are reported and future research needs are noted.
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Panel Discussion on Inducer Design Criteria
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Optimization of Vane Diffuser in a Mixed-Flow Pump
for High Efficiency Design
Abstract
This paper presents an optimization procedure for high-efficiency design of a mixed-flow pump. Optimization techniques based on a weighted-average surrogate model are used to optimize a vane diffuser of a mixed-flow pump.
Validation of the numerical results is performed through experimental data for head, power and efficiency. Three-level full factorial design is used to generate nine design points within the design space. Three-dimensional Reynoldsaveraged Navier-Stokes equations with the shear stress transport turbulence model are discretized by using finite volume approximation and solved on hexahedral grids to evaluate the efficiency as the objective function. In order to reduce pressure loss in the vane diffuser, two variables defining the straight vane length ratio and the diffusion area ratio are selected as design variables in the present optimization. As the results of the design optimization, the efficiency at the design flow coefficient is improved by 7.05% and the off-design efficiencies are also improved in comparison with the reference design.
Keywords: Mixed-flow pump, Impeller, Vane diffuser, Efficiency, Optimization, Weighted-average surrogate model.
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Optimization of Vane Diffuser in a Mixed-Flow Pump for High Efficiency Design
Size: 606 KB
Design and CFD Analysis of Centrifugal Pump
Abstract— the purpose of this paper is to identify /observe and determine the pattern of velocity profile and pressure distribution by using CFD simulation program after the 3D design and modeling of the pump is made using Vista CPD. Basically, this paper revolves around the idea of investigating the effect and distribution of velocity profile and pressure within a pump having the following specification, Head = 20 m, Flow rate = 280 m3/hr, and RPM = 1450. 3D Navier–Stokes equations were solved using ANSYS CFX.
The standard k -e turbulence model was chosen for turbulence model. From the simulation results it was observed that the pressure increases gradually from impeller inlet to outlet. The static pressure on pressure side is evidently larger than that on suction side at the same impeller radius. In addition to this, it was observed that, the velocity increases from impeller inlet until it enters the volute casing. It then drops to a minimum value at outlet region.
Keywords— Centrifugal pump design, CFD Analysis, Simulation, ANSYS CFX, Vista CPD, pressure distribution, CFD-Tool.
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Design and CFD Analysis of Centrifugal Pump
Size:786 KB
یکی از فعالیت های اصلی شرکت تدبیر انرژی امید انجام طراحی هیدرولیکی و مکانیکی پمپ های API 610 و پمپ مصارف خاص از ابتدا تا انتها شامل انجام طراحی هیدرولیکی، طراحی مکانیکی، تهیه نقشه های ساخت و مونتاژ و مدارک و مستندات مربوطه می باشد. تمام طراحی و تحلیل هیدرولیکی و مکانیکی توسط نرم افزارهای روز دنیا در این زمینه مانند CFturbo, Ansys, Solidworks, Catia انجام می پذیرد.
در زیر نمونه ای از کارهای انجام شده توسط کارشناسان این شرکت آورده شده است.
تحلیل پروانه و ایندیوسر
نقشه سه بعدی پمپ OH2 طراحی شده بر اساس استاندارد API610 11th Ed.
مدل های سه بعدی پوسته پمپ BB1 دو طبقه با پروانه یک مکشه
