DIR Return Create A Forum - Home
---------------------------------------------------------
Lynx Wind Forum
HTML https://lynxwindforumhtml.createaforum.com
---------------------------------------------------------
*****************************************************
DIR Return to: Anything off topic
*****************************************************
#Post#: 97--------------------------------------------------
heat engines etc.
DIR By: crazyguy
Date: June 11, 2013, 9:16 am
---------------------------------------------------------
You have an idea for a new heat engine that still requires
"fire". What about the heat engine they created using the spokes
of the wheel connected to a crank and the spokes are nitinol
wire? The heat differential required by that could be supplied
by solar and geothermal. Solar for the heat geothermal for the
cold.
#Post#: 100--------------------------------------------------
Re: heat engines etc.
DIR By: lynx wind
Date: June 21, 2013, 8:23 pm
---------------------------------------------------------
The engine I am developing is scalable from a few HP to
megawatts. The design is for capturing the tremendous amount of
low grade waste heat thrown off by industry and also gathered
from solar. Anything throwing off 350 F or more will make
power.
I do know about the engine you are speaking of. My aim is to do
something with a bit more impact. Right now we are in the
Solidworks and Material Engineering phase. The prototype works
so we are onto larger engines and then manufacturing.
#Post#: 130--------------------------------------------------
Re: heat engines etc.
DIR By: lynx wind
Date: July 23, 2013, 6:33 pm
---------------------------------------------------------
You got it, that's all there is to it.......sort of. It has to
be very carefully tuned. The regenerative steel wool has to be
at just the right spot. The piston has to be very free to move,
and the heat has to be placed at the right spot. The air
expands, moves the piston and cools. When the piston moves back
it pushes air into the hot steel wool expanding again. It
oscillates at a particular frequency. These are interesting but
very difficult to get them to do work.
#Post#: 132--------------------------------------------------
Re: heat engines etc.
DIR By: lynx wind
Date: July 24, 2013, 11:28 am
---------------------------------------------------------
These are super touchy machines. They are working with a
resonance as the air inside bounces back and forth. Disrupt the
resonance and it just stops. You can find lots of video of
these running, but few that power more than an LED. There are
lots of DIY instructional videos. I have never had one that ran
for more than a few minutes.
Try getting one to run before you contemplate improvements.
I have never had luck pulling power from floating pistons. If
they aren't sealed then the most direct route for pressure is
around the piston. Once that happens the engine doesn't run
well.
Check out Lidmotor's channel for his efforts at making stirling
and acoustic engines power a load. I trust him. There are a
lot of videos out there I don't trust as honest.
#Post#: 134--------------------------------------------------
Re: heat engines etc.
DIR By: lynx wind
Date: July 26, 2013, 7:46 am
---------------------------------------------------------
You're finding some of the Stirling and Thermo-Acoustic examples
of engines that do you work. Anytime you can seal the piston
the power is much better. A piston on a diaphragm wont move
much but will generate a lot more power. NASA made a linear
type that oscillated an alternator. Really tough to make these
work. Hats off to these builders.
*****************************************************
Page 1 of 1