A COP of 3 is not accurate according to the specifications supplied by Rossi. It is important not to assume that the lower limitation is firmly established since thermal feedback can generally be used to increase that number significantly. The main problem is to keep the device from going into a thermal run away condition. If my simulations are anywhere close to reality, the geometry of the CAT can be adjusted to allow the internally generated heat power to sink away from its source at a rate that exceeds its generation level at all the operational temperatures.
The 4th power heat sinking rate due to radiation can win the race against any internal rate of power generation of a lower order. It is my belief that this is why Rossi and company use that path as the ultimate means of transferring most of the core generated power into the outside system. The nonlinear nature of the high order radiation sink working with a less strong thermal convection and conduction paths are key to achieving a stable overall system with a reasonable COP. One thought to consider is that using the radiation transfer of most of the core power to the outside world can safely take place if the thermal sink temperature is moderately lower than the surface temperature of the ECAT. For instance, if the walls surrounding the ECAT are operating at 1/2 the temperature of the device then the radiation backwards to the ECAT is 1/2 raised to the 4th power which is 1/16 the forward direction. This strong directivity of the radiation path can be used to great advantage in the achievement of thermal stability. Dave -----Original Message----- From: Blaze Spinnaker <[email protected]> To: vortex-l <[email protected]> Sent: Wed, Nov 5, 2014 12:38 pm Subject: Re: [Vo]:COP of 3 is a problem for electrical -> Thermal For sure, but it isn't interesting to take electrical and do a 3:1 COP on it. what's interesting is to take coal or gas and do a 3:1 COP on it. But I think if Rossi can do that, than I think he should be pretty close to just using an eCat for it. On Wed, Nov 5, 2014 at 7:37 AM, Bob Higgins <[email protected]> wrote: It is interesting to note that Rossi's lower temperature eCat arrays appear to go into service for heating. If you look at his hotCats, they are being configured as industrial furnace heating elements. Operating at >1000C, these furnace heating elements being replaced are mostly electrical with a COP=1 (as Bob Greenyer showed, some are gas). A COP=3+ heating element for these industrial furnace applications will save a lot of money and coal because coal is being used to drive the COP=1 furnace elements today. I think the biggest expense for some of these large companies that use heat treatment is the energy cost and I think a COP=3+ for a T=1300C+ furnace element will sell well. There are no heat pumps in such a high temperature application to compete with. In China, pollution is so bad that the real cost of coal is high. The money appears to be in heat at the moment, not in electrical production. It is 28F here this morning and we just had our first dusting of snow. I could really use a nice COP=3 heater. In cold weather climates, even cold weather optimized heat pumps don't operate with a COP over 3. There would be a nice home market here. Bob Higgins On Wed, Nov 5, 2014 at 8:26 AM, Blaze Spinnaker <[email protected]> wrote: Interesting posts on e-cat world lately. It's a good point. If coal is so cheap, than a cop of 3:1 for electricity -> thermal isn't going to cut it. They're are going to need to be able to power the cat by coal itself or gas and get a 3:1 thermal -> thermal ratio.
