Search found 27 matches

by iron_goober
Wed Oct 03, 2007 6:25 am
Forum: Power-producing Stirling Engines
Topic: LDT Stirling and a heat pump
Replies: 2
Views: 10220

Response to LDT Stirling and a heat pump

<r>Using a heat pump to increase the efficiency of the Stirling engine would decrease the total efficiency of the system. It would be like running your air conditioning in your car for a radiator system...it just doesn't work, you'd just be running your engine harder than using a radiator. 2nd law o...
by iron_goober
Sat Sep 29, 2007 9:07 am
Forum: Stirling Engines for Education
Topic: Neat way to make a piston
Replies: 1
Views: 9050

Response to Neat way to make a piston

<t>Works like a charm. I just sprayed some cooking oil in the cylinder, put the mixed JB weld in and, voila, a nicely made piston. I just sanded the sides lightly and it is a nice close clearance fit but still slides easily. I'm sure using brass and aluminum or graphite is lower friction, but for th...
by iron_goober
Thu Sep 27, 2007 8:03 am
Forum: Power-producing Stirling Engines
Topic: NASA Link
Replies: 0
Views: 7297

NASA Link

Here's an interesting link from NASA with the Stirling engines that
were developed for deep space applications.
http://www.grc.nasa.gov/WWW/tmsb/Stirling.html


In case anyone is interested.
by iron_goober
Thu Sep 27, 2007 5:03 am
Forum: Model Stirling Engines
Topic: Stirling Engine powered Flashlight
Replies: 2
Views: 11030

Response to Stirling Engine powered Flashlight

<t>I have to say that I disagree about them being a dismal prospect. I recently watched a video on youtube from a french website where a man built a LTD using a diaphram piston that was running off of the temperature difference from the evaporation of water, and it had a small alternator he made tha...
by iron_goober
Wed Sep 26, 2007 8:03 am
Forum: Power-producing Stirling Engines
Topic: scaling up
Replies: 7
Views: 28926

Response to scaling up

Oops, sorry, didn't really mean to post that.
by iron_goober
Wed Sep 26, 2007 7:03 am
Forum: Power-producing Stirling Engines
Topic: scaling up
Replies: 7
Views: 28926

Response to scaling up

i think that
by iron_goober
Wed Sep 26, 2007 6:34 am
Forum: Stirling Engines for Education
Topic: Neat way to make a piston
Replies: 1
Views: 9050

Neat way to make a piston

<t>Now, I tried this once but I didn't do it correctly, but apparently it<br/> works. One way to make a tight fitting piston in a cylinder is to get<br/> some JB weld, mix it up, take the cylinder that you are going to use<br/> for the power piston, put a light coat of oil on in the inside of it<br/...
by iron_goober
Wed Sep 26, 2007 6:03 am
Forum: Stirling Engines for Education
Topic: Engine speed(rpm),volume ratio & pressure ratio.
Replies: 1
Views: 9459

Response to Engine speed(rpm),volume ratio & pressure ratio.

<t>There are WAY too many design factors to easily answer your question. I would recommend finding the following books at your engineering library, I read these last year while in college and they helped me understand engines and all the factors that go into designing them much better. The first is ...
by iron_goober
Tue Sep 25, 2007 3:31 pm
Forum: Model Stirling Engines
Topic: model does not run
Replies: 3
Views: 13175

Response to model does not run

<t>Also, I found this comment on the website..be sure to do this between the power piston cylinder and the displacer cylinder.<br/> <br/> "The finished kit measures 9-1/2"L x 4"W x 6-1/2"H and the base measures 12-1/4"L x 6-3/8"W. YOU WILL NEED TO DRILL A SMALL 30° HOLE BETWEEN TWO CYLINDERS FOR ...
by iron_goober
Tue Sep 25, 2007 3:31 pm
Forum: Model Stirling Engines
Topic: model does not run
Replies: 3
Views: 12693

Response to model does not run

<t>Also, I found this comment on the website..be sure to do this between the power piston cylinder and the displacer cylinder.<br/> <br/> "The finished kit measures 9-1/2"L x 4"W x 6-1/2"H and the base measures 12-1/4"L x 6-3/8"W. YOU WILL NEED TO DRILL A SMALL 30° HOLE BETWEEN TWO CYLINDERS FOR ...