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On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "newman-parameters
Sets Newman model-specific parameters (see Inputs for the Equivalent Circuit Model for definitions
of the Newman model parameters)." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
382
battery-model/
parameter-estimation-tool
Computes the model parameters from battery's testing data." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "You can use the estimation tool to compute
model parameters for the NTGK or ECM model, or for the One-Equation thermal abuse model." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "You
must provide battery's testing data as a text file in a specific format for each model." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "When you enable
this tool and select the model option, Fluent will show the required format for the input file in the
console." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "For more details, see Using Parameter Estimation Tools." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "You can contact ANSYS Technical
Support for clarifications on how to use this tool." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "thermal-abuse-model
Allows you to choose a thermal abuse model and specify its parameters (see Specifying Advanced
Option in the Fluent User's Guide for more details)." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "383
Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Dual-Potential MSMD and Circuit Network Battery Models
Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "384
Chapter 18: Fuel Cell Text Commands
This chapter is divided into the following sections:
18.1." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Using the PEMFC Text User Interface
18.2." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Using the Fuel Cell and Electrolysis Text User Interface
18.3." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Using the Solid Oxide Fuel Cell With Unresolved Electrolyte Text User Interface
18.1." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Using the PEMFC Text User Interface
All of the features for the PEMFC model that are available through the graphical user interface are also
available through text user interface (TUI) commands." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The TUI allows text commands to be typed directly
in the ANSYS Fluent console window where additional information can be extracted and processed for
more advanced analysis." | 5 |
I read this background article the other day: Once the fuel cell module is loaded (see Loading the PEMFC Module), you can access the text user in-
terface through the console window under define/models/pemfc/. A listing of the various text
commands is as follows:
advanced-setup/
Advanced setup.
list-zones-briefly
List zone names and IDs.
contact-resistivity
Set contact resistivity.
I am facing a new situation today: John is a scientist. He has just developed a fuel cell. He needs to test the fuel cell. For that, he loads the fuel cell module. After loading the fuel cell module, he issues the command "list-zones-briefly". The zone names and IDs will be listed on the console window.
Using the knowledge I acquired from the background article, how should I answer the new question? | Yes, the zone names and IDs will be listed on the console window. |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "coolant-channel
Set coolant channel." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "stack-management/
Stack setup." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "list-fc-units
List fuel cell units." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "list-zones-briefly
List zone names and IDs.
create-fc-unit
Create fuel cell unit." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "modify-fc-unit
Modify fuel cell unit." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "delete-fc-unit
Delete fuel cell unit." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "385
Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
set-stack-current-density
Set the current density on the anode or cathode and modify the current solution to assist conver-
gence." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Note:" | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Input here is in units of A/cm2.This is only available if the case contains valid data
(for example, after initialization, iterating, or reading in data)." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "For more information, see IV-Curve
Calculations Using the Text Interface (p. 387)." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "set-stack-voltage
Set the voltage difference in Volts between the anode and the cathode and modify the current
solution to assist convergence." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "This is only available if the case contains valid data (for example,
after initialization, iterating, or reading in data)." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "For more information, see IV-Curve Calculations
Using the Text Interface (p. 387)." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "reset-setup
Reset the stack setup in case mistakes are made.
submit-setup
Submit the stack setup and makes the stack setup take effect." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "anode-setup/
Anode setup." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "catalyst-layer
Set catalyst layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "current-collector
Set current collector." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "electrolyte-layer
Set electrolyte layer.
flow-channel
Set flow channel." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "list-zones-briefly
List zone names and IDs." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "micro-porous-layer
Set micro-porous layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "porous-electrode
Set porous electrode." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "cathode-setup/
Cathode setup." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "catalyst-layer
Set catalyst layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "current-collector
Set current collector." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "electrolyte-layer
Set electrolyte layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
386
Fuel Cell Text Commands
flow-channel
Set flow channel.
list-zones-briefly
List zone names and IDs." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "micro-porous-layer
Set micro-porous layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "porous-electrode
Set porous electrode." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "electrolyte-setup/
Electrolyte setup." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "catalyst-layer
Set catalyst layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "current-collector
Set current collector." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "electrolyte-layer
Set electrolyte layer.
flow-channel
Set flow channel." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "list-zones-briefly
List zone names and IDs." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "micro-porous-layer
Set micro-porous layer." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "porous-electrode
Set porous electrode." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "enable-fc-model?
Enable/disable PEMFC model.
model-options
Model options.
model-parameters
Model parameters." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "reports
Set electrolyte project area and external contacts." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "18.1.1." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "IV-Curve Calculations Using the Text Interface
For valid case and data files, there are two text commands available to assist in the IV-curve calculation." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "These commands are set-stack-voltage (aliased as ssv) and set-stack-current-density
(aliased as ssc), available from the PEMFC text command menu: /define/models/pemfc/ad-
vanced-setup/stack-management/.
387
Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates." | 1 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Using the PEMFC Text User Interface
For fuel cells, you either prescribe the voltage and obtain the total current delivered by the fuel cell
as a result, or you specify the total current (via flux boundary conditions multiplied by the area) and
obtain the voltage as part of the solution." | 5 |
The details of this IV-relation are specific for each single fuel
cell and depend on mass and heat transport, electrochemistry and inlet conditions, outlet conditions,
operating conditions, and any other parameter or material property involved in the calculation.
Q: How does the fuel cell operate?
A: | It operates by mass and heat transport, electrochemistry, and inlet conditions |
The
IV-curve is important for applications, because its product is the power delivered by the system.
Having read the above passage, answer the following question:
If Mona is building a new electrical system and she wants to figure out how much power it will deliver, what should she do with the IV-curve? | figure out the product |
As described earlier in this manual, you would start a new simulation from fairly static conditions, that
is, high voltage/low current (which implies low species transport and low heat generation).
Given the context: What does the high voltage/low current imply? | low species transport and low heat generation |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "After con-
vergence, you typically may be interested in solutions for new electric boundary conditions, that is,
either for a new cell/stack voltage or current." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "In such cases, simply going to the Boundary Conditions task page and changing the value of the
electric potential (uds-0) boundary condition, typically allows only small changes, most notably for
stacks." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Otherwise the solution will not converge." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "This is where the set-stack-voltage and set-
stack-current-density commands are important." | 5 |
I heard that In addition to changing the boundary conditions (either to a prescribed voltage or current density),
these commands process the current data in order to estimate the solution for the new boundary
conditions.
And I was wondering What is the first step in changing the boundary conditions? | estimate the solution for the new boundary conditions |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Because these commands modify the data, you are prompted to save your data, if you
have not already done so." | 5 |
Before going into details of the commands, here are some general remarks about electric potential
boundary conditions.
Given the context: What will the narrator do next? | talk about the details of the commands |
Given the context: If the electric potential of an external contact changes, what will happen to the fixed voltage boundary conditions? | change |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The anode value will typically be zero, but it does not have to be." | 5 |
I heard that The cathode value will be
larger than the anode value and the difference (
-
) is the positive cell/stack voltage.
And I was wondering What is the difference between the cathode value and the anode value? | The difference is the positive cell/stack voltage. |
For a fixed current boundary condition, one external contact has to have a fixed value and the other
flux boundary conditions.
Having read that, I wonder What is the value of the other flux boundary condition? | variable |
As described earlier in the manual, typically, the anode will have a fixed
(zero) value, and the cathode will be floating, however, you can also set the cathode to a fixed zero
potential, yielding a floating negative anode potential.
Q: What will be floating?
Referring to the passage above, the correct answer to the given question is | the cathode |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The set-stack-voltage command sets the effective stack voltage, that is, the difference (
-
)." | 4 |
For fixed voltage boundary conditions for the previous solution, boundary conditions on both
boundaries are of type fixed value and then the cathode value will be changed accordingly.
Q: What is the cathode value?
Referring to the passage above, the correct answer to the given question is | a type of boundary condition |
In the
case of fixed current boundary conditions for the previous solution, the flux boundary condition will
be changed to a fixed value boundary condition, and the value adjusted accordingly with respect to
the other fixed value boundary condition.
Q: What will be changed to a fixed value boundary condition?
Referring to the passage above, the correct answer to the given question is | flux boundary condition |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The set-stack-current-density command sets the current density on one boundary to the
desired value." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Note that the input will be in
, not
as you would normally have to enter in the
Boundary Conditions task page." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The reason for this is that average current densities reported in the
text command interface are also in
, and this makes it easier to choose the conditions you would
like to prescribe next." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Also, flux boundary conditions entered in the Boundary Conditions dialog box
would have to have a positive sign on the anode side, and a negative sign on the cathode side." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The
input for the text interface command is just a positive number, signs are automatically accounted for." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "For fixed current boundary conditions for the previous solution, the set-stack-current-density
command changes the respective flux boundary condition accordingly." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "In the case of fixed voltage
boundary conditions for the previous solution, the cathode side is chosen to be changed from a fixed
value to a flux boundary condition with the new flux." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Release 2019 R3 - © ANSYS, Inc." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "All rights reserved." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "388
Fuel Cell Text Commands
The two commands may be mixed in an IV-curve calculation." | 5 |
On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "For the type of boundary condition setups
currently described in this manual, boundary condition changes will consistently happen on the cathode
side." | 5 |