Sim with no fans makes no difference help

Hello!
Im doing cooling sims for my FSAE teams accumulator and I have been simming values with varying fan CFMs and now ran a sim with no fans at all to validate the presence of the fans. The run finished and I found that the cells were not as hot as they should be. I set the heat rate of each of the cells to reach 60 celcius through the run and with no air inlet into the segment section I would have expected each of the cells to reach 60 celcius but that is not the case. Feel free to look at my previous sims at 24cfm and lower with the fan inlet in the boundary conditions.
Please let me know if you need furthur clarification on what Im asking or more details about the paramaters as a whole.

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Hey conmitalas206,

Thanks for posting on the Forum.

We will take a look and get back to you!

Best,
Satvik