A good example. I think it comes down to whether all of the water that we see at the outlet, in whatever form, would have had to been converted to water vapour at some stage in order to get there, requiring its latent heat of vapourisation. In the case of my, and John's coffee maker, not all of it needs to be vapourised. In other systems it would, even if some subsequently recondenses before it gets to the outlet because of heat loss.

Nigel

On 21/01/2012 13:03, John Milstone wrote:
I suppose my coffee maker could be producing "dry" steam. But it's producing very small quantities of it, and that small amount of steam pushes the vast majority of the liquid water up and over the reservoir and into the coffee grounds.

Or am I missing something?

------------------------------------------------------------------------
**

Reply via email to