News from EEStor/ZENN sounds promising

pbelter · Post by **pbelter** » Mon Dec 10, 2012 3:10 am

ZENN hired an independent expert, John Galvagni to evaluate EESTOR progress. I found his report interesting.

Here is his background:

I have been employed in the capacitor industry for over 40 years, and have more than 50 patents in the
field. I retired in the spring of 2010 from AVX Corporation, a leading manufacturer of capacitors, as a
Fellow in the Firm, the third of only five such positions at AVX since its founding in the 1930’s.

and the report
http://media3.marketwire.com/docs/JGsReport.pdf

GIThruster · Post by **GIThruster** » Mon Dec 10, 2012 3:17 am

AVX is big time. I'm familiar with their products.

A welcome development to be sure. One supposes he thinks something is there or he wouldn't be involved.

parallel · Post by **parallel** » Mon Dec 10, 2012 3:55 am

The report has been out for a few weeks now. The general feeling is that Weir has indeed discovered something novel and useful, but nothing close to what he promised in the early days. The possible energy density is still several orders of magnitude below what was promised. There is still some hope of a usable device.

John Galvagni was a skeptic and was paid for the analysis.

pbelter · Post by **pbelter** » Mon Dec 10, 2012 5:11 am

Galvagni has been to EESTOR twice. During the second visit, closer to the end of the report he says that the permittivity is no longer in tens of thousands but in millions, which is 2 orders of magnitude higher than from what they originally promised.

The main concern is not permittivity but the Dissipation Factor, which had a variance of 59% in the first set of samples during the first visit, where the samples had permittivity in 10,000s, but was brought down to 32% in the later, improved set with permittivity in the 1,000,000s.

Here is an interesting excerpt from the report that talks about the measurement verification:

In order to verify the accuracy of the readings of the capacitance instrument we used to test the product,
Mr. Weir demonstrated the readings on a “standard” capacitor. These are special capacitors that are
calibrated by a National Bureau of Standards lab, to certify that the values are accurate. To double check
his calibration, I had brought with me capacitors whose parameters I knew. We had a multilayer ceramic,
and a double-layer capacitor, which we tested, and the test instrument returned values which I know to
be accurate. I was therefore comfortable that the high permittivity readings I observed were accurate.

mvanwink5 · Post by **mvanwink5** » Mon Dec 10, 2012 3:17 pm

You guys are spoofing, right? The key issue is energy storage not permittivity at low voltage. The report correction shows permittivity at 1000 volts to be 20 (November 6 report correction). Yes they have something, lots of hot air, for a decade. They are supposed to have 18,000 permittivity at 3500 volts. Do the calcs and see where they are in "having something." You can use 1/2CV^2 and assume C will be linear with voltage (best case). I will crunch the numbers for the wide eyed EEStor dreamers, no charge. Yes! they are only at 1/10,000 of target energy density. A decade of progress.

Yes, you guys are spoofing! ROFL! I needed a good laugh.