Issue 33
infinite energy
new energy foundation
who are we?
apply for grants
donate to nef
infinite energy magazine
  about the magazine
subscribe
subscribe
subscribe
back issues
read ie
author instructions
change of address
contact us
advertising
gene mallove collection
biography
publications
photographs
video
resources
  lenr-canr magazine index in the news
in the news
links
research
  mit and cold fusion report technical references
key experimental data
new energy faq
youtube

 

 

infinite energy


New Energy Research Laboratory Device and Process Testing Update
Published in IE Volume 6, Issue #33. September, 2000.
by Ed Wall

Dash Cell Progress 
Progress has been made on the Dash Cell work at NERL. Calibration of the Seebeck Envelope Calorimeter (SEC) was accomplished by two means: a simple electric heater and by using an electrolytic cell with ordinary water and two platinum electrodes. The latter is to provide a reference that most closely mimics the kind of heat generation that is found with the platinum anode and titanium cathode heavy water cell that has been reported by Professor John Dash and his colleagues to be a fairly reliable generator of small percentages of excess heat.

As can be seen in the SEC Calibration chart, which contains both the heater and electrolytic calibration, the latter is somewhat below the former. The calibration lines differ. The difference can be accounted for by fact that there is some loss of water in the electrolytic cells, on the order of 1 g/day. The loss is due to gas leakage. The leaking gas would have produced heat if it had been recombined into water in the cell. The cell design is good, because it is simple, but it is not yet completely gas tight. One can see how the square data points, which are for electrolytic calibration, fall below the heater calibration at higher power.

Dr. Edmund Storms was kind enough to provide us with some valuable suggestions on improving the sealing of the cell. He also urged us to implement a secondary recombiner, which he uses. The recombiner is a catalyst that produces water and heat from the oxygen and hydrogen produced in the electrolysis process. This secondary recombiner is a small bit of catalyst to recombine the hydrogen and oxygen that might escape from the cell if the primary recombiner begins to fail. If the recombiner failed, and we did not know it by any indications, and the cell seal was very tight, the pressure build up in the cell could be dangerous; we would have no indication of recombiner failure. The secondary recombiner temperature is monitored. If the cell's recombiner fails, an indication is generated.

Storms reports that he has essentially no mass loss from his cells because of the excellent gas seals he employs. With his system the electrolytic calibration line would be virtually co-linear with the heater calibration line.

After electrolytic calibration, the platinum/titanium heavy water cell was run, and some small apparent excess heat appeared at low power (up to 5.2 watts input). This is only a preliminary result, for the following reasons. The cell power wiring became an issue. The wires that provide power to the electrolytic cell do more than provide power. They convey heat out from the SEC in a way that avoids detection by the thermcouples that make up the SEC. This was known to me previously, so I used small diameter wires to make such heat flow negligible. Small wires have high resistance, so they can generate non-negligible heat. This would not have been a problem if the voltage sensing wires to measure cell voltage for the data acquisition system were not directly on the leads at the top of the cell. The part of the power wires between the top of the cell and the SEC perimeter was dissipating heat into the SEC, and the electrical power that made that heat was not directly measured. I thought that this would not be a problem, because the SEC was to be calibrated with an electrolytic cell, which I thought would perform in a manner very similar to the test cell. However, when we detected the small apparent excess heat, it was a small enough excess that even such trifling sources of possible error as this had to be taken seriously. The calibration and the test cells had different resistance across their leads. This was an issue, because at the same power level, the heat dissipated in the power wires was different because of the different currents. This was a small calibration error.

We also became more concerned about how sensitive the SEC might be to where inside of the SEC the heat source was located. Ideally, such sensitivity would be nil. However, the heat conductivity of the SEC walls is not perfectly uniform, nor is the cooling of the temperature reference plate for the reference thermocouples. So, a test was designed with four 10-watt resistors, one at each corner of the SEC, configured so that the resistors could be activated separately or in combination without opening the SEC. The resistors were placed on a piece of sheet metal, which was raised off the floor of the SEC by a short plastic stand. This offered a fairly extreme test of the SEC by the standard of normal use, when a much less concentrated source of heat is located in the center of the unit on the short plastic stand. The resulting SEC output voltage for a given resistor input power was not expected to exceed the voltage seen when that power was applied to a large, centrally located calibration resistor. In fact, none of the corner resistor lines exceeded the calibration line, and the maximum deviation was an SEC reading 4.3% below the calibration line. From this test, we can fairly conclude that the location of the cell will have a negligible affect on the result and, if the slight change in heat source position does affect SEC output, it will probably only decrease the output. In other words, if we see excess heat exceeding the heater calibration line by more than three standard deviations, we can be pretty confident that the source of the excess is not a statistical fluke or due to a calorimeter problem.

The power leads were replaced with a heavier gage wire from the perimeter of the SEC to the cell, and the voltage sensing now takes place at the SEC perimeter. This means that the voltage we measure is not exactly the cell voltage, but we are accounting for the very small amount of heat dissipated in the power wires.

A second titanium cathode was tested. The gas leakage now proved to be serious. It was decided to change the cell to incorporate gas seals, and that is being done as we go to press.

Experimentation is a series of careful steps to gain better results, results that mean more. Eliminating gas leakage will improve electrolytic calibration and should give us clearer results as we test a variety of cells at different power levels.

Hydrosonic Pump
In case you are new to this saga, the Hydrosonic Pump is a mechanical heater for a liquid stream that works by cavitation. It has been reported by some to exhibit anomalous energy efficiency (see IE, No. 23, p. 28).

As reported in the last issue, HydroDynamics agreed to provide a replacement Hydrosonic Pump for the one originally purchased from them, because of a design error on their part. The pump was too large for the motor (or the motor was too small for the pump) and the motor was drawing too much current for its rated power. The new pump has finally arrived. The old one was removed and replaced. It was not an ideal fit to the existing steel frame, but very close. With some cutting, drilling, and professional alignment, the new pump is being installed.

The new pump mounting will be on three points, instead of the former four. One of the points will incorporate a load cell, which is an accurate force measuring transducer. With the load cell, we will be able to measure torque delivered to the pump. That quantity, along with RPM measurement, will allow accurate input power measurement.



Copyright © 2014-2015. All rights reserved. E-mail: staff@infinite-energy.com