An excellent point Ken. I'll address it with the Editor. Not that I have influence or anything, but I write to the poor editor all the time :) Gary been on ___________________________________________
Active cooling might well be an answer. Not just a fan, but how about a TEC device ? If there were wide enough interest I could perhaps offer a design as this sort of thing is what I do (thermodynami
Agreed, you could run everything on 12 volts. That would work for many common situations. It would not work for my setup with scanners and commercial radios and computers, and....well you get the ide
I like to use copper bus bar stock. Cut to length and drilled to fit battery terminals I have installed. You can often get this surplus for pennies on the dollar at surplus shops. copper that _______
a That is where a TEC design would come into play. You can keep that heatsink just as cold as you want. 73 de Gary, AA2IZ _______________________________________________ TenTec mailing list TenTec@c
It is interesting that most of us don't know how important the heat sink goop is, and how much of the heat transfer takes place through it. The two metal surfaces (heat sink and transistor) even if m
I'm sorry Ralph....I speak in techno-babble all too often ! A TEC is a thermoelectric cooler. As you probably know, if you apply low voltage DC to one of these babies, it pumps heat - making one side
Hi Jerry, Nope...a properly designed TEC cooler is very efficient. My designs usually operate at a COP of between 3 and 7. Its a common myth that TEC coolers operate at a COP of near unity or less. (
Yes....a single inverter properly sized and thus with a reasonable load is most efficient. _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.conte
That's right Jerry....and common practice. But better practice is to seal against moisture, which is what I do. Its not as though there is very much moisture, nor is there any water pressure. points.
A further comment is that many TEC coolers are used in fact as dehumidifiers. As such, they are available from the factory sealed against water. You must take further steps of course. But it is not s
Bill, Only use mica or the various pads if you require electrical insulation. They do not conduct heat anywhere near as effectively as the thermal grease by itself. If you do require electrical insul
Propane powered generators will not start in freezing cold weather. They must be insulated and heated. Keep that in mind. Buy a little extra capacity, not the surge capacity, but the continuous capac
My hot water heater is 4 kw like Jerry says. My 6 kw ( 8 kw peak) genset can handle it, if I manage load aggressively. What I do is power it off part of the time and save lots of load that way, while
Not what I was talking about. Sure, the tanks will also freeze if they are too small. I was assuming they were large enough and would not freeze. I am talking about the propane feed into the engine i
When it comes to freezing the tanks, it is the amount of heat used to vaporize the gas (phase change from liquid to gas uses up a huge amount of heat) vs. the stored heat in the mass of the liquid an
Not to belabor the point Josh, but teens and 20's are not what I consider cold at all. Pretty much anything will start there. I'm talking 20 below zero and downwards. The fact that you need a "hot" b
Things will be better, but not perfect. You are right that your natural gas is delivered to the house as a gas, and you will never freeze up your gas supply lines in the same way you could have froze
Excellent Carl ! I'm gonna keep asking about the Ethernet aspects of the rig. Any insights there yet > Gary, AA2IZ is manual some _______________________________________________ TenTec mailing list T
This is a very interesting point. Kind of ironic that I am allowed to have a 1000 gallon propane tank 15 feet (and Uphill !!) from my house, but they would limit gasoline storage to 5 gallons. Ironic