Jed-- I have researched the pump characteristics further and find that this pump has a low efficiency and would use at most about 3 watts of power in heating the circulating water. This is consistent with what you have stated.
I am not sure how Mizuno measured the 10.8 Watts of power used by the pump. I think the pump specifications indicate the pump uses about 22 watts. However, The specifications for the amperage and voltage during operation would indicate the 29 watts I suggested some time ago. I plan to talk with the pump vendor technical staff to better understand the performance of this type of pump and the wattage vs voltage/amperage specs and the efficiency. I will report on what I find. However, it would appear the pump is only about 15% efficient at best in converting electrical energy into the mechanical energy causing the circulation. At low circuit frictional pressure drop (low heads) it appears even less efficient. I was wrong in assuming an efficient pump. I do not have the same report that you have identifying the pump specifications on page 24. My version of your report, dated November 14, 2014, does not include the specification you state exists on the side of the pump body. In addition I do not think I have the same description of a "baseline" that your make reference to. I think by "baseline" you mean a condition at which the energy introduced into the circulating system by the pump creates a temperature of the reactor and water bath and all the reactor internals that is the same and in equilibrium with a non-changing differential temperature between the ambient atmosphere and the water bath. This would allow a reasonable determination of the average thermal resistance of the insulation and hence a measure of the approach to a desired adiabatic condition of the test setup. In any case a good description of "baseline" conditions is warranted. In addition, if you have information as to when it was determined that excess reaction heat was produced in the reactor, this would be helpful in comparing temperature profiles with rates of change, compared to times when there was no excess energy input to the system. For example, when is the excess energy produced with respect to the time the spikes of electrical heat are applied to the electrodes? In this regard it seems that the excess energy production, if any, does not continue indefinitely, since the temperature increase levels off and then decrease without the spikes of electrical input to the electrodes. However, does it continue in the time frame between spikes of input energy to the electrodes. The temperature of the system and water bath should return to the "baseline" with time, if the only input is the energy was from the pump. If excess energy form a reaction continues the temperature should level out at somewhat above the baseline. This would be nice confirmation of excess energy. I summary I have the following additional questions: What is the date of your latest report of the Mizuno test? Does it exist on-line: If so, what is the link? Is there any information from the Mizuno testing as to when excess energy from an unknown reaction starts and stops? Is there a good definition of "baseline"? Bob ----- Original Message ----- From: Jed Rothwell To: vortex-l@eskimo.com Sent: Saturday, January 10, 2015 8:18 PM Subject: Re: [Vo]:"Report on Mizuno's Adiabatic Calorimetry" revised Bob Cook made two large mistakes here. I wish he -- and others -- would The Iwaik pump, if running, would have added heat at about 29 watts per the pump specification. In my report, p. 24, I list the pump specifications. Mizuno measured the pump input power with the watt meter. It is 10.8 W, not 29 W. However, only a tiny fraction of this power is delivered to the water. Mizuno measured how much is delivered. It was only ~0.4 W. If you do not think so, explain why Fig. 19 is wrong. You can confirm that nearly all the electric power converts to heat at the pump motor. Touch a pump and you will feel the heat radiating. Many pumps have fans that blow the hot air out of the motor. With a good pump, the water is at the other end away from the motor, and very little heat transfers to it. This was more than enough to raise the temperature without any reactor heat source given the recorded decrease of 1.7 watts when nothing was running or reacting. Suppose this is true. Suppose it was 1.7 W and suppose that raises the temperature by 4 deg C. Pick any temperature rise you like: suppose it raises the temperature by 10 deg C, or 20 deg C. Here is the point, which I have made again and again: THE TEMPERATURE WAS ALREADY that much higher when the test began. The pump runs all the time. Using this method we measure from that starting baseline temperature up to the terminal temperature of the test. The pump heat -- however much there is -- is already included in the baseline. Therefore we never include it in excess heat. You need to answer these points if you want to have a serious discussion. - Jed