Hybrid Car – More Fun with Less Gas

simple stirling hot air engine made at home with simple tools ,2 cans a baloon - Page 7

register ::  Login Password  :: Lost Password?
Posted by Morris Dovey on January 2, 2012, 2:09 pm
On 1/2/12 5:38 AM, Jim Wilkins wrote:

Good thought! I've added an NC valve to my materials search list.

My present thinking is to use mains power for only the ignition heater,
and battery power for everything else.

The controller battery looks like


And the rest are just plain old gel cell motorcycle batteries from an
earlier project.

Morris Dovey

Posted by Jim Wilkins on January 2, 2012, 3:10 pm

Regardless of the power source, when you see smoke or flame or hear hissing
you want to slap the big red KILL button.
(Amazon.com product link shortened)


Posted by Morris Dovey on January 2, 2012, 3:31 pm
 On 1/2/12 9:10 AM, Jim Wilkins wrote:

Yuppers. The human interface will be a touch screen like


Which will allow me to set test parameters and start a test sequence.
During the test, the screen will display status, measurements, and show
a moving graph of temperature and radiation count data - and
(importantly) a touch anywhere on the screen during a test sequence will
trigger the shutdown sequence.

I'm making the software so twitchy that I doubt I'll ever have a chance
to manually kill this thing. :-)

Morris Dovey
DeSoto Solar

Posted by Morris Dovey on January 2, 2012, 10:42 pm
 On 1/2/12 4:01 PM, Bob F wrote:

No, but would be delighted if you have a practical/affordable suggestion.

Morris Dovey

Posted by Morris Dovey on January 3, 2012, 1:38 am
 On 1/2/12 6:21 PM, Bob F wrote:

I'm expecting a maximum pressure of about 300 psi.

I'm not (ever) planning to allow any temperature above 400C - and
initially not more than 250C.

I haven't identified all of the hardware yet, but the stainless 304
tubing used for the reactor chamber has a theoretical bursting pressure
of 19598 psi for which which ASME suggests a safety factor of 4, so
4899.5 psi. I'm guessing that won't be the weak spot. :-)

Morris Dovey

This Thread
Bookmark this thread:
  • Subject
  • Author
  • Date
please rate this thread