C-Rate Heat Generation Per Unit Volume & Heat Flux for CFD Simulation of Lithium Ion Battery ||

[@swagatagupta3969]

How do you get the convective heat transfer coefficient or just take it as a random value ? I we dont add convection is there any problem ?

[@FrontiersInCFD]

Need to calculate not a random value..

[@emrysdruid143]

How to incorporate the condition of charging and discharging in this? Or we need to use some other method or model?

[@FrontiersInCFD]

No just heat generation per unit volume is specified based on c rate

[@emrysdruid143]

@@FrontiersInCFD which model can we use for charging and discharging simulations??

[@FrontiersInCFD]

@@emrysdruid143i have use c rate

[@emrysdruid143]

@@FrontiersInCFD Yes sir you have used C rate I know.....but if my query is if we want to simulate charging and discharging, then what do we need to do in that case?

[@Sumitkoundalvlogs]

Hello sir the values you have taken from the paper doest it gives the same reault like temperature and reynolds no value

[@FrontiersInCFD]

These are reference values taken for simulation. May have variation

[@Sumitkoundalvlogs]

How can i contact you i want to asked you about some ansys problem and something

[@Sumitkoundalvlogs]

​@@FrontiersInCFD in research paper temperature exceed up to 312k how to achieve that what changes should i need to do to get the same exact value from the paper

[@FrontiersInCFD]

Connect on whats app 9834584778

[@rebookspartan]

If I set up the heat fluxe in this way, can I obtein the maximum temperature of the cells?

[@FrontiersInCFD]

You can get in result section you have to select domain as cell

[@rebookspartan]

sorry, I explained myself poorly, I simulated a cell by setting the heat generation with forced convection, recreating the real conditions, I obtained a surface temperature of the cell higher than in reality: in reality I obtained 35 C° while in the simulation 60 C°, therefore I asked myself is it correct to simulate the cell in this way?

[@FrontiersInCFD]

Checl the time step size you have use

[@q.t.v]

pleas can you explain how get the value of heat generation or the the value if heat transfer , h know the P=i.v , BUT SEEM THAT YOU DIDNT USE ONLY THIS EQUATION.

[@yahya-youcef]

???

[@FrontiersInCFD]

Took heat generatiom per unit volume from reference paper

[@q.t.v]

please doctor, can you answer me

[@kevintimothy29]

you can use bernardi equation for that. you may find this equation in internet and many research paper use this equation

[@FrontiersInCFD]

@@q.t.v took from reference paper

[@amansworld212]

Sir you haven't selected the polarity of each cell i mean where is positive/negative terminal?

[@FrontiersInCFD]

I haven't used MSMD model this is just CFD thermal Analysis.

[@amansworld212]

@@FrontiersInCFDOhk.. sir please mention your linkdin user name

[@FrontiersInCFD]

www.linkedin.com/in/dr-roshan-bhagat-83b79a146/

[@amansworld212]

can i design 4P23S battery pack in Ansys

[@FrontiersInCFD]

Yes it can be done

[@amansworld212]

@@FrontiersInCFD ooh nice..for thermal analysis is it required to give the space between each battery?

[@FrontiersInCFD]

For effecrive heat transfer it is required

[@amansworld212]

@@FrontiersInCFD If we do not give a gap then the length of the battery pack will be too much. If the width is so wide then how can it be made to work?

[@FrontiersInCFD]

These gaps are in ""mm""

[@KundanKumar-rv8gq]

Sir , you done simulation for smaller time step ,but when I did at 5c, 720 sec , at 600 sec there is spike in temperature, itried to change mesh size and timestep =0.5 , still problem , can you tell me , where I am doing wrong,I have got all the solution till 4c

[@FrontiersInCFD]

Take smaller time step size of 0.005

[@MuhammadArslanAslam-yu4fg]

Brother can you solve this tutorial using PCM material. please brother

[@FrontiersInCFD]

Will try

[@anfalacademy786]

Sir Can u mention research paper

[@FrontiersInCFD]

Received as simulation requirement however this was used as one of the reference paper. Numerical and experimental investigation of thermal performance of lithium ion battery with hybrid cooling system under dryout condition