Prediction model for energy conversion characteristics during transient processes in a mixed-flow pump

W Li, Y Huang, L Ji, L Ma, RK Agarwal, M Awais - Energy, 2023 - Elsevier
The global energy shortage is gradually intensifying. A pump is a versatile device with
significant power consumption in energy conversion equipment. Of the world's total energy …

[图书][B] Nuclear systems Volume II: Elements of thermal hydraulic design

NE Todreas, MS Kazimi, M Massoud - 2021 - taylorfrancis.com
This book provides advanced coverage of a wide variety of thermal fluid systems and
technologies in nuclear power plants, including discussions of the latest reactor designs and …

Theoretical prediction model of transient performance for a mixed flow pump under fast start-up conditions

M Liu, Y Han, L Tan, Y Lu, C Ma, J Gou - Physics of Fluids, 2023 - pubs.aip.org
There always appear unsteady characteristics during start-up periods of pumps, which can
lead to instability of the entire system. However, the lack of a method for quickly and …

A model for the analysis of pump start-up transients in Tehran Research Reactor

K Farhadi, A Bousbia-Salah, F D'Auria - Progress in Nuclear Energy, 2007 - Elsevier
During the starting up period of a centrifugal pump the rotational speed is accelerated
rapidly from standstill to its final speed and then established at the rated speed. While flow …

Optimization of pump transient energy characteristics based on response surface optimization model and computational fluid dynamics

W Li, Q Yang, Y Yang, L Ji, W Shi, R Agarwal - Applied Energy, 2024 - Elsevier
The global energy shortage is increasingly becoming a problem of major concern
worldwide. Since the pumps represent the largest part in the energy conversion devices …

Analysis of flow coastdown for an MTR-pool type research reactor

K Farhadi - Progress in Nuclear Energy, 2010 - Elsevier
In the present paper a mathematical model is developed upon which the velocity of flow
during coastdown transient is determined analytically without the use of characteristics of …

Transient hydrodynamic behavior of a pump as turbine with varying rotating speed

J Hu, W Su, K Li, K Wu, L Xue, G He - Energies, 2023 - mdpi.com
The working condition of a centrifugal pump as a turbine (PAT) is often unsteady. The
rotating speed of a PAT constantly varies as the flow and load change, resulting in transient …

Numerical simulation of the transient flow in a radial flow pump during stopping period

J Liu, Z Li, L Wang, L Jiao - 2011 - asmedigitalcollection.asme.org
Three-dimensional (3-D) unsteady incompressible and non-cavitating flow in a radial flow
pump during the rapid stopping period was numerically studied by CFD. The dynamic mesh …

Strong transient characteristics in axial flow waterjet pump during rapid starting period with special emphasis on saddle zone

F Zheng, X Zhang, T Chen, B Huang, J Xu, G Wang - Ocean Engineering, 2023 - Elsevier
The rapid starting condition of axial flow waterjet pumps is relatively common in high-speed
marine vessels, often leading to cavitation damage and vibration noise. This paper aims to …

Transient flow analysis in reactor coolant pump systems during flow coastdown period

H Gao, F Gao, X Zhao, J Chen, X Cao - Nuclear engineering and design, 2011 - Elsevier
The rapid flow transient calculation in reactor coolant pump system is important in the safety
analysis of a nuclear reactor. An accurate transient analysis of flow coastdown is also …