On Dec 9, 2011, at 9:40 AM, Jed Rothwell wrote:
Horace Heffner <[email protected]> wrote:The air gap the thermocouple extends out into is large. It is a gap that is longitudinally between the nut and the manifold, and radially between the nut outer surface . . .I do not think so. The insulating material is flexible and fits tightly. Also, the TC is against the flat surface of the nut,
I don't think so. The wire is against the nut, but it is not clear the thermocouple tip is.
Here is another view of the thermocouple tip after the insulation was removed. You can see it extends out beyond the nut, even though the wire is bent upwards at the time of the photo.
http://lenr.qumbu.com/lenr_spicepics/111010_1C_crop.png A cropping with the thermocouple tip circled in red is attached.Here is photo of manifold with thermocouple removed. Air space is probably about 5 mm deep, 2 cm wide? Also threads prevent firm wide area contact.
http://lenr.qumbu.com/lenr_spicepics/111010_2_crop.jpgPhotos are from Alan Fletcher's site, the page with the nifty FEA simulations:
http://lenr.qumbu.com/rossi_ecat_oct11_spice.php Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
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