Orthogonal Test Design and Numerical Simulation of 100QJ10 Type Deep-Well Pump

2011 ◽  
Vol 110-116 ◽  
pp. 2590-2595 ◽  
Author(s):  
Ling Zhou ◽  
Wei Dong Shi ◽  
Wei Gang Lu
Keyword(s):  
High Efficiency ◽  
Design Method ◽  
Orthogonal Experiment ◽  
Latin Square ◽  
Test Method ◽  
Design Parameters ◽  
Geometrical Parameters ◽  
Deep Well ◽  
Orthogonal Test Design ◽  
New Type

In this paper in order to develop high efficiency and high head deep-well pump, a L9 (34) orthogonal experiment was performed with four factors and three values including outlet angle, outlet width, the outside diameter of impeller back shroud, etc. 9 impellers were designed. The whole flow field of new-type two-stage deep-well pump at the operating point for design was simulated by FLUENT 6.2 using the standard model, SIMPLEC algorithm, second-order upwind scheme to solve, and analyze the independent of the number of the grid. 9 groups of the efficiency and head in design scheme were obtained. The effects of geometrical parameters on efficiency, head were researched using Latin square test method. The primary and secondary factors of the design parameters were acquired by way of variance analysis. According to the test result, an optimum program to further design was put forward. After manufactured and tested, the efficiency and head of the final optimal design models were significantly improved. The productions show good energy saving and material saving characters and could replace traditional pumps for deep well in the future, the comprehensive technical indicators achieve international advanced levels. The results would be instructive to the design method of new-type deep well pump.

Optimization Design of New-Type Deep Well Pump Based on Latin Square Test and Numerical Simulation

2010 ◽  
Author(s):  
Wei-dong Shi ◽  
Hong-liang Wang ◽  
Ling Zhou ◽  
Ping-ping Zou ◽  
Guo-tao Wang
Keyword(s):  
Optimization Design ◽  
High Efficiency ◽  
Orthogonal Experiment ◽  
Latin Square ◽  
National Standards ◽  
Test Method ◽  
Design Parameters ◽  
Geometrical Parameters ◽  
Deep Well ◽  
New Type

In order to develop high efficiency and high head deep well pump of 150QJ20 type, a L18 (37) orthogonal experiment was performed with seven factors and three values including blades numbers, outlet angle, outlet width, etc.18 impellers were designed. The whole flow field of new-type two-stage deep well pump at the operating point for design was simulated by FLUENT using the standard model, SIMPLEC algorithm, second-order upwind scheme to solve, and analyze the independent of the number of the grid. 18 groups of the efficiency and head in design scheme were obtained. The effects of geometrical parameters on efficiency, head were researched using Latin square test method. The primary and secondary factors of the design parameters were acquired by way of variance analysis. According to the test result, an optimum program to further design was put forward. After manufactured and tested, the final optimal design model pump flow at rated efficiency of 66.59% point, single-stage head of 10.9m, match the motor as 5.5 kW, compared to the Chinese national standards (GB/T 2816-2002), which the rated flow point of the efficiency of 64% and matching motor 7.5 kW, the efficiency and head were significantly improved. The productions show good energy saving and material saving characters and can replace traditional pumps for deep well in the future, the comprehensive technical indicators achieve international advanced levels. The results would be instructive to the design of new-type deep well pump with the impeller head maximum approach.

scholarly journals A Two-Round Optimization Design Method for Aerostatic Spindles Considering the Fluid–Structure Interaction Effect

2021 ◽  
Vol 11 (7) ◽  
pp. 3017
Author(s):  
Qiang Gao ◽  
Siyu Gao ◽  
Lihua Lu ◽  
Min Zhu ◽  
Feihu Zhang
Keyword(s):  
Optimal Design ◽  
Optimization Design ◽  
Design Method ◽  
Fluid Structure Interaction ◽  
Design Procedure ◽  
Design Parameters ◽  
Geometrical Parameters ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Aerostatic Spindle

The fluid–structure interaction (FSI) effect has a significant impact on the static and dynamic performance of aerostatic spindles, which should be fully considered when developing a new product. To enhance the overall performance of aerostatic spindles, a two-round optimization design method for aerostatic spindles considering the FSI effect is proposed in this article. An aerostatic spindle is optimized to elaborate the design procedure of the proposed method. In the first-round design, the geometrical parameters of the aerostatic bearing were optimized to improve its stiffness. Then, the key structural dimension of the aerostatic spindle is optimized in the second-round design to improve the natural frequency of the spindle. Finally, optimal design parameters are acquired and experimentally verified. This research guides the optimal design of aerostatic spindles considering the FSI effect.

Simulation and Design of Wireless Energy Transmission for Implantable Micro-Electromechanical Devices

2013 ◽  
Vol 765-767 ◽  
pp. 2345-2350
Author(s):  
Jian Chen ◽  
Lei Ma ◽  
Wei Zhang ◽  
Yao Li
Keyword(s):  
High Efficiency ◽  
Impedance Matching ◽  
Design Parameters ◽  
Wireless Power ◽  
Low Loss ◽  
Source Current ◽  
New Type ◽  
Electromechanical Devices ◽  
Topologic Structure ◽  
Class E

The purpose of this study is to describe a novel topologic technology for wireless power transmitting through external coils to multiple implantable micro-electromechanical devices inside the patient body, which is able to solve the dilemma of recharging. Wireless power transmitters are designed based on class π-type topologic structure, which improves existing Class-E power amplifier structure and impedance matching technology. Mathematical Models based on resonating chopper MOSFET and class π-type impedance matching network are introduced to optimize the design parameters. Together with proper capacitors and high-flux, low-loss inductors, an optimal wireless power transmitter with significant characteristics of high efficiency and low loss takes advantage of this brand new type of topologic structure. The author designed and developed the RF oscillator and the actual class E power resonant amplifier. During studies, with the 12V power supply, the voltage of 96.8V is generated on the 50ohm high-power RF load side, along with source current of 2.183A. The efficiency of the system reaches 89.4%, which satisfied the need for implantable micro-electromechanical device.

scholarly journals Design Method for Flux-Concentrating Permanent-Magnet Traction Machine Based on Voltage-Parameter Map

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5311
Author(s):  
Ki-Doek Lee ◽  
Jeong-Jong Lee ◽  
Myung-Hwan Yoon ◽  
Joon-Sung Park
Keyword(s):  
Permanent Magnet ◽  
High Efficiency ◽  
Design Method ◽  
Synchronous Motor ◽  
Design Parameters ◽  
Maximum Speed ◽  
Variable Load ◽  
Light Load ◽  
Interior Permanent Magnet ◽  
Pm Synchronous Motor

A voltage-parameter map (VP-Map) is proposed for predicting the performance of electric vehicles (EVs) and hybrid EVs (HEVs), which varies with respect to the parameters in a variable load and flux-weakening range, and determining the design parameters. Through this, the maximum torque that can be generated at the maximum speed, the input current for generation of the rated torque, and whether the vehicle is operable with a light load are predicted, and the design parameters suitable for the 120-kW class interior permanent-magnet (PM) synchronous motor for HEVs, which is the target electric motor of this study, are determined. A flux-concentrating PM synchronous motor (FCPMSM) is proposed that can be designed using the desired design parameters depending on the degree of the flux concentration. The validity of the VP-Map was verified by analyzing the characteristics of three types of FCPMSMs with different parameter combinations, and a PM synchronous motor for an EV having a high output, high efficiency, and high-power factor was designed. Lastly, the requirements were checked, and the analysis was validated by testing the designed motor.

A Passive Third-Order Cascade PLL Filter

2011 ◽  
Vol 255-260 ◽  
pp. 2262-2266
Author(s):  
Lin Feng ◽  
Chu Wu ◽  
Bo Jin ◽  
Zhen Yu Wu
Keyword(s):  
Design Method ◽  
Step Response ◽  
Design Parameters ◽  
Frequency Noise ◽  
Third Order ◽  
Loop Filter ◽  
Order Filter ◽  
New Type ◽  
The Stability ◽  
Phase Design

In this paper, the traditional passive loop filter is improved, and a new type of Cascade Third-order filter structure and Graphical Phase Design method is proposed, which greatly simplifies high-order PLL filter’s design, analysis and calculation. According to graphical phase design principle, parameters for cascade third-order filter could be figured out from the given formula, the derived result is simulated in the form of Bode plots and Unit-step response with Pspice software and the loop target under different parameters is compared. Experiments show that this third-order filter could significantly improve the stability of PLL, deeply attenuate the phase detector’s high-frequency noise and is well adapted to the loop gain change. Users can also change the design parameters flexibly according to the system requirements with this filter.

scholarly journals Efficiency Optimization Design of L-LLC Resonant Bidirectional DC-DC Converter

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3123
Author(s):  
Jing Lu ◽  
Xiangqian Tong ◽  
Jianwu Zeng ◽  
Ming Shen ◽  
Jun Yin
Keyword(s):  
Parameter Optimization ◽  
Optimization Design ◽  
High Efficiency ◽  
Design Method ◽  
Optimization Method ◽  
Switching Loss ◽  
Intrinsic Mechanism ◽  
Parasitic Parameters ◽  
New Type ◽  
Parameter Optimization Design

The new type of L-LLC resonant bidirectional DC-DC converter (L-LLC-BDC) has merits of high efficiency, high-power density and wide gain and power ranges, and it is suitable for energy interface between energy storage systems and DC micro grid. However, the resonances are sensitive to the parasitic parameters, which will deteriorate the efficiency. This paper investigates the intrinsic mechanism of parasitic parameters on the L-LLC-BDC operating principle and working characteristics based on the analysis of working modes and resonance tank. By taking the oscillation of parasitic parameters produced in the stage for the freewheeling stage into consideration, a parameter optimization method is proposed to reduce the resonant current oscillation while maintaining the characteristic of the natural soft switching. The experiment results not only validated the proposed parameter optimization design method, but also testified to the improvement of the efficiency through the minimization of the conduction and switching loss.

Study on Design Parameters of Strip Wound Prestressed Die Based on Fatigue Theory

2013 ◽  
Vol 690-693 ◽  
pp. 2250-2253
Author(s):  
Kong Jun Chen ◽  
Qiang Wang ◽  
Fang He
Keyword(s):  
Mathematical Model ◽  
Safety Factor ◽  
Design Method ◽  
Orthogonal Test ◽  
Test Method ◽  
Design Parameters ◽  
C Language ◽  
Orthogonal Test Method ◽  
Winding Tension ◽  
The Mathematical Model

By referring to the mathematical model to design strip wound die based on fatigue theory which was already established by the authors, the design method is put forwards and the software is developed by using C language, in order to determine the design parameters such as winding prestress, winding layers and winding tension. Investigations into the influence of design parameters on die performance were conducted by employ orthogonal test method. According to the calculations, the order of design parameters can be concluded: firstly, allowable safety factor named [n]; secondly, friction coefficient named f; thirdly, thickness of strip named t. The most important factor is allowable safety factor named [n].

A numerical study on the effects of design parameters on the acoustics noise of a high efficiency propeller

2018 ◽  
Vol 91 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Yunpeng Ma ◽  
Na Guo
Keyword(s):  
Noise Reduction ◽  
High Efficiency ◽  
Numerical Study ◽  
Three Dimensional ◽  
Aerodynamic Noise ◽  
Design Parameters ◽  
Geometrical Parameters ◽  
Content Type ◽  
Simulation Based ◽  
S Model

PurposeA numerical study on the aerodynamic noise generation of a high efficiency propeller is carried out.Design/methodology/approachThree-dimensional numerical simulation based on Reynolds averaged N-S model is performed to obtain the aerodynamic performance of the propeller. Then, the result of the aerodynamic analysis is given as input of the acoustic calculation. The sound is calculated using the Farassat 1A which was derived from Ffowcs Williams–Hawkings equation and is compared with the measurements.FindingsMoreover, the fan is modified for noise reduction by changing its geometrical parameters such as span, chord length and torsion angle.Originality/valueThe variation trend of aerodynamic and acoustic are compared and discussed for different modification tasks. Some meaningful conclusions are drawn on the noise reduction of propeller.

Optimization Design Method for Production Parameters of Submersible Pump Well of Polymer Flooding

2014 ◽  
Vol 997 ◽  
pp. 69-72
Author(s):  
Xian Jun Meng ◽  
Tie Xin Hou ◽  
Hai Qing Cui
Keyword(s):  
Mathematical Model ◽  
Optimization Design ◽  
System Analysis ◽  
High Efficiency ◽  
Design Method ◽  
Polymer Flooding ◽  
Design Parameters ◽  
Submersible Pump ◽  
Production Parameters ◽  
Electric Submersible Pump

Aiming at the design goal of the highest efficiency of the electric submersible pump of polymer flooding and basing on the coordination of the production system of the electric submersible pump well of polymer flooding and taking oil well productivity and parameters of electric submersible pump (displacement, lift, power) of the electric submersible pump as the design parameters, a mathematical model of the optimization design method for the production parameters of the electric submersible pump well of polymer flooding using the nodal system analysis method was established, and through the mathematical model mentioned above, the optimization design method for the production parameters of the electric submersible pump well of polymer flooding was given. The optimization design method mentioned above, taking the electric submersible pump well B1-D4-71 of Daqing Oilfield as an example, was applied. The results indicate that the method mentioned above can make the electric submersible pump work in the high efficiency area after the electric submersible pump well B1-D4-71’s being put into production.

Redesign of a Transonic Compressor Rotor by Means of a Three-Dimensional Inverse Design Method: A Parametric Study

2007 ◽  
Author(s):  
Duccio Bonaiuti ◽  
Abeetha Pitigala ◽  
Mehrdad Zangeneh ◽  
Yansheng Li
Keyword(s):  
Design Method ◽  
Thickness Distribution ◽  
Three Dimensional ◽  
Tip Clearance ◽  
Inverse Design ◽  
Design Parameters ◽  
Geometrical Parameters ◽  
Blade Loading ◽  
Inverse Design Method ◽  
The Impact

In the present paper, the redesign of a transonic rotor was performed by means of a three-dimensional viscous inverse design method. The inverse approach used in this work is one where the pressure loading, blade thickness distribution and stacking axis are specified and the camber surface is calculated accordingly. The design of transonic and supersonic axial compressors strongly relies on the ability to control the shock strength, location and structure. The use of an inverse design method allows one to act directly on aerodynamic parameters, like the blade loading, and provides an efficient tool to control the shock wave and its interaction with the boundary and secondary flows and with the tip clearance vortex. In the present study, the parametric investigation of the blade loading distribution was carried out. Few design parameters, with immediate physical meaning, were required to control the three-dimensional blade loading, and their impact on the design and off-design performance of the rotor was assessed by means of CFD calculations. Further investigations were then performed in order to study the impact on the rotor performance of the geometrical parameters (meridional channel and thickness distribution), which must be imposed in the design with the inverse method. As a result, it was possible to develop guidelines for the aerodynamic design of transonic rotors that can be exploited for similar design applications.

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