On Oct 13, 2011, at 8:15 PM, Mark Iverson-ZeroPoint wrote:
Hi Horace,
Sorry! I didn't mean to be a pest,
You are not a pest!
but I didn't even get an ACK that
indicated you had seen my post
Here you mean the following I assume?
Look at all the pictures of the heat-spreader inside the E-Cat, and
tell me that the shape of the finned structure is a square and not
a rectangle… Now, do you think that Lewan’s dimensions for that
structure 30 x 30 x 30 are right?
-mark
(or personal email)
Sorry, I did not realize I got a personal email from you on this.
There vas a [Vo] in the subject line, which routes it to my vortex-l
in box.
I am way behind on both reading and posting. There are lots of posts
I flagged to respond to but did not get to because of time. If a
subject is one which I have already dealt with and not posted or am
dealing with in my survey I tend to just delay any response, because
I can simply quote or refer to the section which deals with the
issue. In this specific case I have been looking at photos and film
to try to determine the dimensions. This is a lengthy process.
BTW, it appears to me the rectangular look of the finned structure is
just a matter of perspective. It looks more square from the top:
http://www.mtaonline.net/~hheffner/LewanEcatTop2.jpg
in this modified photo by Mat Lewans of NyTeknik.
The thing most bothersome to me is the lack of any reference item
with which to pin down *actual dimensions*.
about this issue... next
time, if possible, just a quick note to indicate that you saw the
post or
email and are working on it... for a trivial issue I wouldn't care,
but this
definitely affects some of your calculations in your report, so I
wanted to
be sure you at least saw that there might be an error in Mat's
dimensions.
I was keenly aware of the problem and working on it. I saw no sense
in disagreeing with your post, which I anticipated, until I had
better data put together.
No Hurry... let us know when you've updated your report.
-Mark
Here is a preview based on this modified photo by Mat Lewans of
NyTeknik:
http://www.mtaonline.net/~hheffner/LewanEcatTop2.jpg
All lengths below in pixels unless otherwise given.
The ratio of the magneta lines is 244/195 = 1.319. The ratio of the
red lines is 179/154 = 1.162. This is due to perspective, assuming
all the angles are right angles.
The mid-line width of the inside of the container box (magenta lines)
is (195+244)/2 =219.5. The mid-line width of the reactor box (red
lines) is (179+154)/2 = 166.6 The ratio of the width of the box to
the width of the reactor is 219.5/166.6 = 1.3145. If the reactor is
30 cm wide then the box interior is 1.3145*(30 cm) = 39.4 cm wide.
This gives a mean sideways gap width of (39.4 cm - 30 cm)/2 = 4.7 cm.
The average length of the reactor (blue lines) is (155+154)/2 =154.5.
The average length of the inside of the container box (orange lines)
is (229+237)/2 = 233. Adjusting the orange line lengths for
perspective, we have a length of (1.162/1.319)*233 = 205. The ratio
of length of the interior of the container to the reactor box is
205/154.5 = 1.6181. If the reactor length is 30 cm then the length
of the box is 48.5 cm. This gives a mean lengthwise gap width of
(48.5 cm - 30 cm)/2 = 9.25 cm.
Using a gap between the top of the reactor and the bottom of the lid
of 3.5 cm, determined elsewhere, we have a container interior
dimensions of 34.9 cm x 48.5 cm x 33.5 cm, for a volume of 56703 cm^3
= 56.7 liters. The volume of the reactor box is (30 cm^3) = 27000
cm^3 = 27 liters. T this we need to subtract the water spaces between
the fins.
It looks like about (1/9)*30 cm = 3.3 cm is cooling fins. About 50%
of the 3.3 cm x 30 cm x 30 cm = 3 liters should be water, giving a
total finned structure volume of 27 liters - 3 liters = 24 liters.
The net water occupiable volume of the box is thus 56.7 liters - 27
liters = 29.7 liters. Rossi stated in his blog that this value is 30
liters. The measurements estimated for the device based on a 30 cm^3
reactor appear to be inconsistent with Rossie’s statement. It is of
course important to obtain accurate measurements of these values to
make consistent sense of the data.
-----Original Message-----
From: Horace Heffner [mailto:hheff...@mtaonline.net]
Sent: Thursday, October 13, 2011 5:59 PM
Subject: Re: [Vo]:Analysis by Bob Higgins
Mark,
I am working on getting better or confirming estimates. I am also
working on multiple other things at the moment so please be patient.
[snip]
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
