A multi-component spatially-distributed model of two-phase flow for estimation and control of fuel cell water dynamics

2007 ◽  
Author(s):  
B.A. McCain ◽  
A.G. Stefanopoulou ◽  
I.V. Kolmanovsky
Keyword(s):  
Fuel Cell ◽  
Two Phase Flow ◽  
Water Dynamics ◽  
Distributed Model ◽  
Phase Flow ◽  
Cell Water ◽  
Two Phase ◽  
Spatially Distributed ◽  
Estimation And Control ◽  
And Control

A prospective study of anti-vibration mechanism of microfluidic fuel cell via novel two-phase flow model

Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 119543
Author(s):  
Jingxian Chen ◽  
Peihang Xu ◽  
Jie Lu ◽  
Tiancheng Ouyang ◽  
Chunlan Mo
Keyword(s):  
Fuel Cell ◽  
Prospective Study ◽  
Flow Model ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Vibration Mechanism ◽  
Microfluidic Fuel Cell ◽  
A Prospective Study

scholarly journals Membrane-less micro fuel cell based on two-phase flow

2017 ◽  
Vol 348 ◽  
pp. 212-218 ◽  
Author(s):  
S.M.H. Hashemi ◽  
M. Neuenschwander ◽  
P. Hadikhani ◽  
M.A. Modestino ◽  
D. Psaltis
Keyword(s):  
Fuel Cell ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase

Design Methodology and Valve Sizing for Heater Drain Systems

2009 ◽  
Author(s):  
Casey Loughrin
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Pressure Losses ◽  
Solution Methods ◽  
Flow Phenomena ◽  
Flow Pressure ◽  
And Control

Heater drain systems in fossil and nuclear power plants have proven to be among the most complex systems to design due to the occurrence of two–phase flow phenomena. The overall performance of heater drain systems directly relates to proper sizing and design of the piping and control valves. Proper sizing is highly dependent upon accurate and conservative calculation of two-phase flow pressure losses. This paper outlines the various options of solution methods available to the engineer and details one possible method which is simple, yet adequate, and based on the homogeneous equilibrium model (HEM) for two phase flow for calculation of heater drain system performance. General comparisons are made to the more complex multi-fluid models, flow regime considerations, and non-equilibrium models.

Control-Oriented Drift-Flux Modeling of Single and Two-Phase Flow for Drilling

2014 ◽  
Author(s):  
Ulf Jakob F. Aarsnes ◽  
Florent Di Meglio ◽  
Steinar Evje ◽  
Ole Morten Aamo
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Drift Flux Model ◽  
Drift Flux ◽  
Underbalanced Drilling ◽  
Flux Model ◽  
Gas Liquid Flow ◽  
And Control ◽  
Operating Regimes

We present a simplified drift-flux model for gas-liquid flow in pipes. The model is able to handle single and two-phase flow thanks to a particular choice of empirical slip law. A presented implicit numerical scheme can be used to rapidly solve the equations with good accuracy. Besides, it remains simple enough to be amenable to mathematical and control-oriented analysis. In particular, we present an analysis of the steady-states of the model that yields important considerations for drilling practitioners. This includes the identification of 4 distinct operating regimes of the system, and a discussion on the occurrence of slugging in underbalanced drilling.

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