On Mon, Jul 18, 2011 at 12:53 PM, Jed Rothwell <[email protected]>wrote:
> P.J van Noorden wrote: > > the airpressure on April 28th 2011 was 1011 mbar, so the boilingpoint must >> have been 99.9 degC. The difference in boilingtemperature can be >> explained by the accuracy of the thermometer (+/- 0.4 degrC). >> > > At these temperatures with boiling water I doubt the water temperature was > uniform. I have recently been calibrating some thermocouples and > thermometers at various temperatures. I have seen considerable > non-uniformity. That's a pot, and your thermometer is placed in pure water. In the ecat, the power is high enough to raise all the water to the bp, and convert some to steam before it exits. This mixture of liquid and gas will be at the bp. > There is no mixer inside the eCat. It is producing gas at many times the volume of the liquid in a confined volume. That will produce a great deal of mixing.
