Open AccessJournal Article
Evaluating the Performance of Electric Submersible Pump under Various Speeds of Operation
Dhanasekaran A,Kumaraswamy S +1 more
TLDR
In this paper, the performance characteristics of a multistage electric submersible pump with its power supply through a variable frequency drive (VFD) were evaluated at various frequency settings.Abstract:
Electric submersible pumps (ESPs) are widely used in agricultural, petroleum and various other industries. These pumps are mostly driven at a constant speed since an ac motor is normally used as the drive. However, ESPs can also be operated at various speeds by the use of a variable frequency drive (VFD). The scope of this study is to experimentally investigate the performance characteristics of a multistage electric submersible pump with its power supply through a VFD. First a load test was conducted on the motor alone as per relevant Indian Standard at various supply frequencies. the data of load test on motor was used to evolve a novel method to calculate slip of the motor from the input power. This was applied to the test results of pump obtained at various frequency settings to determine its performance at different speeds.read more
Citations
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Journal ArticleDOI
Experimental study of characteristics of pressure fluctuation in an electrical submersible pump under different flow rates and speeds using time and frequency domain
TL;DR: In this paper, a variable frequency drive (VFD) was used to conduct the test on a multistage electrical submersible pump with five stages at various speed and flow rates.
Proceedings ArticleDOI
Experimental evaluation of affinity law of pumps by using multistage electric submersible pump at various speeds of operation
TL;DR: In this paper, the authors investigated the application of the affinity law when a multistage electric submersible pump is operated at variable speeds and found that there is a deviation between the performance obtained from the test and the one which was calculated using affinity law, which indicated the necessity of conducting experiments when a VFD is to be employed to vary the flow rate.
References
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Journal ArticleDOI
Numerical Investigations and Performance Experiments of a Deep-Well Centrifugal Pump With Different Diffusers
TL;DR: In this article, a 3D surface return diffuser (3DRD) was proposed to improve the hydrodynamic performance of the deep-well centrifugal pump (DCP).
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Improving the effectiveness of solar pumping systems by using modular centrifugal pumps with variable rotational speed
TL;DR: A visual simulation tool for the evaluation of the modified DSP pump performance and costs was developed and it was found that a breakpoint at the 31st impeller produced an increase close to 9% of the yearly pumped water yield with respect to a conventional, non-modular pump.
Journal ArticleDOI
A Study on Multistage Centrifugal Pump Performance Characteristics for Variable Speed Drive System
TL;DR: In this article, the authors investigated the pump performance characteristics of the multistage centrifugal pump with the variable drive system, and an experimental set up of the system was constructed to achieve the pump performances such as HQ, η-Q, P-Q curves and operating points which interact between performance and system curves.
Journal ArticleDOI
Induction motor current signature for centrifugal pump load
TL;DR: In this paper, the authors examined the motor current signature of a centrifugal pump load by experimental observation, theoretical analysis, and numerical simulation and found that stator current is a sinusoidal alternating current that strictly follows sine law associated with the cycle of the fundamental frequency of supply power.
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A new method to calculate centrifugal pump performance parameters for industrial oils
TL;DR: In this article, the authors proposed a novel method to calculate the head (H), efficiency ( ) and input power ( in P ) based on the loss analysis for pumps using industrial oils.