Isn't 23 years of torture enough? On Fri, Aug 17, 2012 at 7:53 PM, Jed Rothwell <jedrothw...@gmail.com> wrote:
> Several experts in calorimetry expressed doubts about the Celani > demonstration at ICCF17. Mike McKubre in particular feels that it is > impossible to judge whether it really produced heat or not, because the > method is poor. He does not say he is sure there was no heat; he simply > does not know. Others feel that he exaggerates the problem. > > There were concerns because Celani has programmed in the Stephan-Boltzmann > law which multiplies things to the a 4-th power. Srinivasan worried that he > makes a mountain out of a molehill. > > The temperature is measured at one point on the surface of the tube. I > asked Brian of NI to give me the actual temperature readings. With 48 W of > input power only, before excess heat or with the Ar calibration, in a room > with 30 deg C ambient temperature, the temperature rose to 120 deg C. When > the excess heat appeared it rose to 140 deg C. Celani says that equals 14 W > excess, and that is what was displayed by the instrument. McKubre and > others worry this may be caused by decreased pressure in the cell. However, > the pressure fell only gradually, and stabilized in the last 2 days. They > also worried about changes in conduction within the tube, and uneven heat > on the surface. I do not think that such effects can account for a 20 deg C > temperature rise, especially given the smooth line produced when there is > no heat, with H or Ar. The temperature returned to the same level with 48 > W, in Italy, Texas and Korea, after the gas had been changed out twice. > > Anyway, I would like to note that these people have doubts. Others agree > with me that the method is crude but unlikely to produce such a large error. > > Celani hopes to run it in self-sustaining mode with better insulation. > That will put to rest all questions about calorimetry. He hopes to do this > as quickly as 2 weeks from now! More power to him. > > He has run it for as long as a month, so a 1 or 2 week self-sustaining run > should not be a problem. Given the mass of wire, even 10 minutes would be > convincing. > > - Jed > >
