Water heat capacity.

[Ls7corvete]

Has anyone included the water heat capacity curve and placed it on the same graph as a water block performance curve?

something like this:


but of coarse for water blocks, I doubt it has much effect but would be interesting none the less. Its beyond my ability to figure such things out but I know someone here would be able to.

[bobo5195]

It would not be that useful as water heat capacity is not very important to block performance.

dt = (60/4200) * Heat input/ FLow

=> c/w = 0.0143/ Q

where flow; Q is in lpm, heat input in watts and dt in kelvins. The 4200 for thermal capacity is an over estimate depending on what is in the water similarly flow assumes water is 1kg per litre.

It is quite obvious from this that energy conservation that waterblocks are in no way inhibited by the amount of water heat capacity as 1lpm flow would have a c/w of 0.0143.

[Les]

A predicted influence(using MTD and not the more rigorous LMTD) is illustrated here, and discussed in posts 50-56 of the same thread

[Ls7corvete]

Originally Posted by bobo5195

It would not be that useful as water heat capacity is not very important to block performance.

dt = (60/4200) * Heat input/ FLow

=> c/w = 0.0143/ Q

where flow; Q is in lpm, heat input in watts and dt in kelvins. The 4200 for thermal capacity is an over estimate depending on what is in the water similarly flow assumes water is 1kg per litre.

It is quite obvious from this that energy conservation that waterblocks are in no way inhibited by the amount of water heat capacity as 1lpm flow would have a c/w of 0.0143.

Certainly significant though, especially for some setups like the highly resrictive blocks and tubbing used by some.

What is 60 in the equation?

Les, I just cant visualize anykind of conclusion from that data.

[bobo5195]

the 60 is 60s in a minute