Study on De-Icing Fluid Pump Station’s Flow Pulsation Suspension Methods

2012 ◽  
Vol 605-607 ◽  
pp. 1330-1334
Author(s):  
Li Wen Wang ◽  
Yong Shen Long ◽  
Zhi Wei Xing
Keyword(s):  
System Simulation ◽  
Simulation Software ◽  
Flow Pulsation ◽  
Kinetics Analysis ◽  
Pumping Station ◽  
Pump Station ◽  
Reciprocating Pump ◽  
Phase Differences

This article studies the flow pulsation of de-icing fluid pump station. First, find the factors affect the extent of flow pulsation through kinetics analysis. Then, base on the summary of the existing pulsation suspension methods (Include combining work of several pumps with an equal original phase differences, changing a single acting pump with a double acting pump), we put forward the method by optimizing the structure of the reciprocating pump to inhibit the flow pulsation. Use system simulation software AMESim to simulate the effect of these methods. Ultimately get the conclusion that the flow pulsation can be controlled at about 12% through these methods. All these works may provide a reference for the design of a de-icing fluid pumping station.

ADAMS Mechanical System Simulation Software

1993 ◽  
Vol 22 (sup1) ◽  
pp. 144-148 ◽  
Author(s):  
Robert R. Ryan
Keyword(s):  
Mechanical System ◽  
System Simulation ◽  
Simulation Software

EasyLaser: Component-based laser system simulation software

2013 ◽  
Vol 25 (10) ◽  
pp. 2536-2540 ◽  
Author(s):  
谢晓钢 Xie Xiaogang ◽  
张建柱 Zhang Jianzhu ◽  
岳玉芳 Yue Yufang ◽  
安建祝 An Jianzhu ◽  
张飞舟 Zhang Feizhou
Keyword(s):  
System Simulation ◽  
Laser System ◽  
Simulation Software

scholarly journals Life cycle cost and energy conservation for water system pumping station reconstruction

2020 ◽  
Vol 164 ◽  
pp. 01002
Author(s):  
Svetlana Maksimova ◽  
Anna Shkileva ◽  
Ekaterina Verevkina
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Life Cycle Cost ◽  
Water System ◽  
Complete Replacement ◽  
Pumping Station ◽  
Operating Modes ◽  
Purchase Cost ◽  
Pump Station ◽  
Pumping Equipment

The main goal of this study is evaluation of reconstruction options for water pumping stations, regarding various factors (equipment purchase cost, maintenance, energy consumption). The search for the most profitable solution was carried out using the life cycle cost methodology for the urban water supply system’s first lift pump station. An analysis of the operating modes of the pumping station was carried out using curves of pumps and system. It was found that the option with a higher purchase price has the best technological indicators, including energy consumption. The expediency of the complete replacement of pumping equipment is confirmed by an analysis of life cycle costs.

scholarly journals Research on the Deposition Characteristics of Integrated Prefabricated Pumping Station

Symmetry ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 760
Author(s):  
Kai Wang ◽  
Jianbin Hu ◽  
Houlin Liu ◽  
Zixu Zhang ◽  
Li Zou ◽  
...  
Keyword(s):  
Deposition Rate ◽  
Flow Rate ◽  
High Speed ◽  
Particle Diameter ◽  
High Speed Photography ◽  
Pump Operation ◽  
Pumping Station ◽  
Movement Trajectories ◽  
Pump Station ◽  
The Right

Based on the discrete phase model (DPM) solid–liquid two-phase flow model and MATLAB image processing technology, an integrated prefabricated pumping station was taken as the research object to study deposition characteristics under different flow rates, different particle diameters, and different liquid levels. Considering the incomplete symmetry of the internal flow of the prefabricated pumping station, deposition characteristics of the prefabricated pumping station under single/double pumps were also analyzed. Double pumps were symmetrically distributed in the integrated prefabricated pump station, and the movement trajectories of particles at the bottom of the pump pit under the closing inlet valve were measured through the use of a high-speed photography experiment. Results showed that with the increase of the flow rate, the deposition rate of the separated prefabricated pumping station decreased. With an increase of the particle diameter, the movement of particles was farther away from the vertical barrier weir. In the range of particle diameter of 6 to 10 mm, the deposition rate decreased with the increase of the particle diameter. With the increase of the liquid level, the deposition rate decreased, first, and then increased again. In the case of the single pump operation, the deposition rate of the right pump operation was smaller than that of the left pump operation. The variation of the deposition rate when the right pump operated was basically the same as that when the dual pumps operated. The movement path of particle N1 was longer. With the decrease of the flow rate and the increase of the particle diameter, the following feature of the particle decreased, and it was easier to impact the walls and edges, which caused long-term deposition. The research results could provide some suggestions for the design of anti-deposition performance of prefabricated pumping station.

Dynamic Characteristics Analysis of Two-Phase Flow Diaphragm Pump Based on MATLAB and ADAMS

2012 ◽  
Vol 522 ◽  
pp. 495-502 ◽  
Author(s):  
Tian Biao Yu ◽  
Jia Shun Shi ◽  
Xiao Ping Zheng ◽  
He Bin Liu ◽  
Wan Shan Wang
Keyword(s):  
Dynamic Characteristics ◽  
Two Phase Flow ◽  
High Reliability ◽  
Simulation Software ◽  
Design Parameters ◽  
Phase Flow ◽  
Two Phase ◽  
Diaphragm Pump ◽  
Corrosion Medium ◽  
Reciprocating Pump

Two-phase flow diaphragm pump (hereafter referred to as the diaphragm pump) is a new generation pump of the reciprocating pump, which used to transport high fretting corrosion medium. At present, the diaphragm pump is widely used in many fields such as Non-ferrous metals, Chemical, Coal, Electric power and so on. The diaphragm pump is of the heart of the equipment; therefore it must have the very high reliability. As the important part of diaphragm pump, the dynamic characteristics of the power end will directly affect the behaviors and life of the solid machine. This paper introduces the work principle of the diaphragm pump, carries a simulation to the virtual prototype of the diaphragm pump based on the numerical value analyze software MATLAB and the dynamics of mechanical system simulation software ADAMS and get the relationships between the design parameters and the dynamic characteristics of the power end of diaphragm pump, which provide a theoretical basis for optimizing the diaphragm pump in the future.

Numerical investigations of vortex flows and vortex suppression schemes in a large pumping-station sump

2011 ◽  
Vol 225 (6) ◽  
pp. 1459-1480 ◽  
Author(s):  
X L Tang ◽  
F J Wang ◽  
Y J Li ◽  
G H Cong ◽  
X Y Shi ◽  
...  
Keyword(s):  
Free Surface ◽  
Three Dimensional ◽  
Turbulence Models ◽  
Complex Nature ◽  
Stable Operation ◽  
Vortex Flows ◽  
Pumping Station ◽  
Pump Station ◽  
Pump Sump ◽  
Under Construction

This work uses a commercial computational fluid dynamics code to predict three-dimensional (3D) vortex flows in a large centrifugal-pump station under construction in China and proposes relevant vortex-eliminating schemes. Because of the complex nature of the vortex flows in sumps, different turbulence models, namely, standard k–ε, re-normalization group k–ε and realizable k–ε models, are first used to investigate their feasibility in predicting flows in a small physical model of an open pump sump, and various vortex streamlines and strength in the sump are predicted, analysed, and compared with the experimental data. The comparisons show that the realizable k–ε model predicts the position and strength of free-surface, sidewall-attached, and floor-attached vortices more accurately than the other two models. Then, the realizable k–ε model is used here to investigate 3D vortex flows in a large pumping-station sump. All the various vortices, such as free-surface, wall-attached vortices, are successfully predicted. Thus, based on the information of location, shape, size, and strength of the calculated vortices, three types of vortex-eliminating devices are proposed and their corresponding vortex suppression effects are analysed. These results will be used as reference for the safe and stable operation of the Hui–Nan–Zhuang pumping station in the future.

scholarly journals Evaluating the Radiation and Temperature Effect on Photovoltaic Systems

2015 ◽  
Vol 4 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Sobhan Dorahaki
Keyword(s):  
Temperature Effect ◽  
Radiation Effect ◽  
System Simulation ◽  
Geographic Area ◽  
Simulation Software ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
Matlab Simulink ◽  
Temperature Changes ◽  
Specific Geographic Area

One of the best ways to identify and design a system is simulating and to achieve this goal, we use simulation software such as MATLAB Simulink. In this study, the relations ruling photovoltaic is described. Then, on the relations basis, a photovoltaic system is simulated in MATLAB software. After photovoltaic system simulation, regardless the specific geographic area, radiation and temperature effect on photovoltaic system is generally simulated. Finally, with regard to radiation and temperature values effect on, it was concluded that we overlook the temperature effect than radiation effect on photovoltaic system designing. It certainly does not mean overlooking the temperature effect. It means a low-effect power changes per temperature changes against radiation.

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