Tempretures Based On Case Sizes

[Relph84]

Hello all.

 

Let's say we have two of the same cases, they both have the same build/setup, but one has a volume of 40 liter and the other 60 liter.

Am I right that the 40 liter would be cooler in therory because it needs to fill lesser than the 60 liter one?

And if so, how much difference in tempreture could that be?

 

Hope you peeps can share your thoughts on it.

[Dedayog]

If one car has a 6.0 litre engine in it and another exact same car has a 4.0 litre engine in it, how much faster is one over the other?

 

It's not about room in the case, it's about airflow.  Conceivably the smaller case would have better airflow due to smaller size but without a lot more information it's only a guess.

[Jurrunio]

The 60 litre case will take longer to warm up since there's more air to do so (heat capacity), but the final temperatures stay the same because the amount of air bringing heat outside is the same, which is handled by the case fans only. Same case fan setup, same airflow

[tkitch]

size has nothing to do with anything.  

Especially airflow.

 

You can have a monster case with amazing airflow, and a small case with shit airflow.  Or vice versa!

 

[Relph84]

58 minutes ago, tkitch said:

size has nothing to do with anything.  

Especially airflow.

 

You can have a monster case with amazing airflow, and a small case with shit airflow.  Or vice versa!

 

I'm not talking about airflow. The question is; can volume have a impact on cooling.

[Relph84]

1 hour ago, Dedayog said:

If one car has a 6.0 litre engine in it and another exact same car has a 4.0 litre engine in it, how much faster is one over the other?

 

It's not about room in the case, it's about airflow.  Conceivably the smaller case would have better airflow due to smaller size but without a lot more information it's only a guess.

Well the metafor does not really match with my question. In your way of saying it would be more like filling the gas tank. Which car fill will up faster and needs to refill mroe often. The 40 or the 60 litre? That's how think in the same way as in cold and warm air that is inside my case. But I get your point.

[Relph84]

1 hour ago, Jurrunio said:

The 60 litre case will take longer to warm up since there's more air to do so (heat capacity), but the final temperatures stay the same because the amount of air bringing heat outside is the same, which is handled by the case fans only. Same case fan setup, same airflow

That is a factor I did not think of but it also takes longer to fill up with cold air than right? But you do make a good point.

[Jurrunio]

12 minutes ago, Relph84 said:

but it also takes longer to fill up with cold air than right?

Longer time to cool down? Yes. Just like bigger reservoirs in custom liquid loops it works both ways.

[Jeppes]

1 minute ago, Jurrunio said:

Longer time to cool down? Yes. Just like bigger reservoirs in custom liquid loops it works both ways.

But what if the smaller case weighs +15kg?

[tkitch]

1 hour ago, Relph84 said:

I'm not talking about airflow. The question is; can volume have a impact on cooling.

in any meaningful sense?  No.

[Jurrunio]

1 hour ago, Jeppes said:

But what if the smaller case weighs +15kg?

Still the same, you're increasing heat capacity again.

[thrasher_565]

smaller case will perform better if the flow is done right. an itx case can outperform my thermatalke core p 200 as the fans are closer to the component althow too close and you get turbulence. a big case is only really for mounting big rads.

 

pipping the air directly to the component also is better then just filling the case as seen this this video. even thow the pipe dose not have smooth serfs there still more preforms with it then with out.

 

 

Edited October 27, 2021 by thrasher_565

[Blue4130]

Assuming same airflow and same parts, the temperature should be the same. Say the parts put out 500w of heat in the 40l case. Moving the parts to a 60l case doesn't change that 500w of heat output. 

 

The reason smaller cases tend to run hotter (think itx builds) is that their airflow is much more difficult to design. With a large atx case, it's easy to slap 3 fans in a mesh front panel and ample exhaust.