scholarly journals 1/3 scale air--water pump program, pump performance data. Volume II. [PWR]

1977 ◽  
Author(s):  
R. Winks
Keyword(s):  
Performance Data ◽  
Water Pump ◽  
Pump Performance ◽  
Data Volume

The Model of Pump Head Data Mining Based on SVM

2013 ◽  
Vol 405-408 ◽  
pp. 3263-3268
Author(s):  
Kai Ding ◽  
Jin Hui Zhang ◽  
Xiao Xun Zhu
Keyword(s):  
Data Mining ◽  
Measured Data ◽  
Small Sample ◽  
Support Vector ◽  
Water Pump ◽  
Pump Performance ◽  
Real Condition ◽  
Pump Head ◽  
Flow Head ◽  
Better Than

The curve of flow-head is one of the most important indicators to assess water pump performance. While it is difficult to get measured data in real condition and the data is very limited. The method of pump data mining based on support vector machine (SVM) is built due to its superiority in dealing with small sample event. The method is aimed at finding out the unknown data between measured data and drawing more accurate flow-head curve. It was found that the model of pump data mining based on SVM is much better than neural network when their curves are compared.

Implications of Applying Semi-Scale Pump Test Data to Two-Phase RCP Performance Modeling for PWR LOCA Analyses

2014 ◽  
Author(s):  
Mathew C. Jacob ◽  
Michael T. Coon ◽  
John A. Blaisdell ◽  
Ruben J. Espinosa
Keyword(s):  
Test Data ◽  
Performance Modeling ◽  
Full Scale ◽  
Performance Model ◽  
Performance Data ◽  
Performance Models ◽  
Two Phase ◽  
Coolant Pump ◽  
Pump Performance ◽  
Pump Test

Emergency Core Cooling System (ECCS) analyses using Loss of Coolant Accident (LOCA) codes utilize two-phase Reactor Coolant Pump (RCP) performance models formulated on the basis of data from tests conducted on the Semi-scale pump (Reference 1) operating at 60 Hz frequency. In some PWRs, the RCPs operate at a frequency of 50 Hz. This paper presents the results of an evaluation performed to determine the applicability of RCP two-phase performance models developed on the basis of data from the Semi-scale tests for analyzing ECCS performance of new generation PWRs. The evaluation addressed two major issues: (1) the applicability of the two-phase RCP performance model developed using the data from the Semi-scale pump tests (Reference 1) for full scale Pressurized Water Reactor (PWR) LOCA simulations, and (2) the relevance of the two-phase RCP performance model developed on the basis of test data for the Semi-scale pumps running at 60 Hz frequency to PWR RCPs running at 50 Hz frequency with higher specific speeds. Reviews of pump performance test data available in the open literature identified two-phase performance data appropriate for use in substantiating the validity of current PWR pump performance models. These data supported the conclusion that the two-phase head performance degradation for the Semi-scale Mod-1 pump is conservative compared to the two-phase pump performance data generated from testing of pumps representative of full scale PWR RCPs. A review of ECCS analyses results available in the literature determined that the use of the current RCP two-phase performance model (developed using the Semi-scale Mod-1 pump test data) for a typical PWR plant resulted in about a 100 °F increase in the Peak Clad Temperature (PCT) for a Large Break LOCA (LBLOCA) in comparison to the PCTs calculated using the two-phase pump performance model developed on the basis of test data for pumps representative of full scale PWR RCPs. It was determined from the current study that the frequency (50 Hz vs. 60 Hz) of the electrical power that drives the pump motor is not of much consequence for two-phase RCP performance modeling, since (1) the RCP performance model is characterized via normalized pump performance parameters, and (2) for the LBLOCA analysis of interest, the RCPs are assumed to lose power at the start of the event.

Optimization of an Innovative Rotary Shaft Pump (RSP)

2006 ◽  
Vol 128 (6) ◽  
pp. 1281-1288 ◽  
Author(s):  
Jacob C. Allen ◽  
Phillip M. Ligrani
Keyword(s):  
Flow Rate ◽  
Volumetric Flow Rate ◽  
Maximum Flow ◽  
Performance Data ◽  
Outer Diameter ◽  
Hydraulic Efficiency ◽  
Rotary Pump ◽  
Optimal Arrangement ◽  
Pump Performance ◽  
Pump Head

This paper describes the optimization of rotary shaft pump performance, which is accomplished by comparing the performance of four different centrifugal rotary pump configurations: hooked blades pump, backward-curved blades ID=12.7mm pump, contoured base pump, and backward-curved blades ID=19.1mm pump. Each of these devices utilizes a unique and simple impeller design where the blades are directly integrated into a shaft with an outer diameter of 25.4mm. Presented for each pump are performance data including volumetric flow rate, pump head, and hydraulic efficiency. When pumping water, the most optimal arrangement with the hooked impeller blades produces a maximum flow rate of 3.22L∕min and a pump head as high as 0.97m.

scholarly journals Design and Manufacture of a Water Pump to Study the Effect of Impeller Blades Number on the Pump Performance

2021 ◽  
Vol 2 (2) ◽  
pp. 1-9
Author(s):  
Abdlmanam Elmaryami ◽  
Abdulla Sousi ◽  
Magdi E. M. El-Garoshi ◽  
Abdelkareem Aljair ◽  
Ahmed Almasry ◽  
...  
Keyword(s):  
Secondary Flow ◽  
Centrifugal Pump ◽  
Flow Rate ◽  
Experimental Results ◽  
Water Pump ◽  
Velocity Head ◽  
Pump Performance ◽  
Design And Manufacture

In this study, the flow rate, velocity, head, and power in a designed and manufactured centrifugal water pump were studied and determined experimentally. The effect of the impeller with different blades on the centrifugal pump performance has been investigated. Three different impellers with 4, 5, and 6 blades are tested to determine the number of the optimum blades. The experimental results showed that the flow rate, velocity, heat, and power are higher for the case of the impeller with 6 blades than that for the two cases of 4 and 5 blades. The losses decrease by increasing the number of the blades due to the reduction of the secondary flow for a certain limit. The experimental results showed better centrifugal water pump performance when an impeller with 6 blades is used.

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