In order to study the transient characteristics of a closed-loop pipe system with room temperature water, experiments were carried out based on different pump stopping periods from rate rotational speed to zero. Various stopping periods were realized by changing the rotational inertia of the rotors, controlling the frequency of the motor and braking the shaft. Experimental results of different operating schemes were compared, and transient flow rate of the pipe system and transient characteristics of the pump were analyzed. The influences of the kinetic energy of the loop fluid and pump rotors to the stopping periods were summarized. Results show that rapid change of the pump operating conditions occurs during the stopping period and transient flow rate of the pipe system and characteristics of the pump depend largely on the way of stopping. The kinetic energy stored in the pump can drive the impeller keeping rotating for more time after the motor is shutdown. Due to the kinetic energy stored in the loop pipe, the flow rate does not reach zero immediately after the rotational speed reaches zero. The inertia of pump rotor and fluid inertia affect the impact of fluid flow and the duration of the loop during pump stopping period.
Skip Nav Destination
Zhejiang University,
Hangzhou 310027,
e-mail: wudazhuan@zju.edu.cn
Zhejiang University,
Hangzhou 310027,
e-mail: roc@zju.edu.cn
Zhejiang University,
Hangzhou 310027,
Zhejiang University,
Hangzhou 310027,
Article navigation
April 2014
Research-Article
Transient Characteristics of a Closed-Loop Pipe System During Pump Stopping Periods
Dazhuan Wu,
Zhejiang University,
Hangzhou 310027,
e-mail: wudazhuan@zju.edu.cn
Dazhuan Wu
1
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
e-mail: wudazhuan@zju.edu.cn
1Corresponding author.
Search for other works by this author on:
Peng Wu,
Zhejiang University,
Hangzhou 310027,
e-mail: roc@zju.edu.cn
Peng Wu
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
e-mail: roc@zju.edu.cn
Search for other works by this author on:
Shuai Yang,
Zhejiang University,
Hangzhou 310027,
Shuai Yang
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
Search for other works by this author on:
Leqin Wang
Zhejiang University,
Hangzhou 310027,
Leqin Wang
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
Search for other works by this author on:
Dazhuan Wu
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
e-mail: wudazhuan@zju.edu.cn
Peng Wu
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
e-mail: roc@zju.edu.cn
Shuai Yang
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
Leqin Wang
Institute of Process Equipment
,Zhejiang University,
38 Zheda Road
,Hangzhou 310027,
China
1Corresponding author.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received April 14, 2013; final manuscript received September 9, 2013; published online January 7, 2014. Assoc. Editor: Chong-Shien Tsai.
J. Pressure Vessel Technol. Apr 2014, 136(2): 021301 (8 pages)
Published Online: January 7, 2014
Article history
Received:
April 14, 2013
Revision Received:
September 9, 2013
Citation
Wu, D., Wu, P., Yang, S., and Wang, L. (January 7, 2014). "Transient Characteristics of a Closed-Loop Pipe System During Pump Stopping Periods." ASME. J. Pressure Vessel Technol. April 2014; 136(2): 021301. https://doi.org/10.1115/1.4025616
Download citation file:
Get Email Alerts
Lateral and Transverse Stiffness Requirements for Supports of Pipeline Systems Conveying Fluids
J. Pressure Vessel Technol
Evaluation of the Structural Suitability of Lifting Trunnions in Large Pressure Vessels
J. Pressure Vessel Technol (June 2025)
Related Articles
Numerical Simulation of the Transient Flow in a Centrifugal Pump During Starting Period
J. Fluids Eng (August,2010)
Performance and Internal Flow Characteristics of a Very Low Specific Speed Centrifugal Pump
J. Fluids Eng (March,2006)
Effect of Surfactant Additives on Centrifugal Pump Performance
J. Fluids Eng (July,2006)
Unsteady Cavitation at the Tongue of the Volute of a Centrifugal Pump
J. Fluids Eng (June,2010)
Related Proceedings Papers
Related Chapters
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach
Introduction
Design of Mechanical Bearings in Cardiac Assist Devices
Introduction
Mixed-flow Pumps: Modeling, Simulation, and Measurements