Search found 36 matches

by NerdyEE
Thu Apr 11, 2013 8:08 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Big Stirling Engine
Replies: 47
Views: 43795

Re: Big Stirling Engine

Hello Fabio and welcome to the forum! Please, I am writing a proper post to address this and many other questions/issues with Mr. Sultan and Hyporex. Pretty scary that they have not determined what type of engine it is that they sell. Doesn't that just build your confidence that this is a good produ...
by NerdyEE
Tue Nov 20, 2012 12:38 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Teacup with square piston/cylinder ? ?
Replies: 11
Views: 6676

Re: Teacup with square piston/cylinder ? ?

Please have a look-see at Jim Larsen's fine works! He has a few rectangular units if I recall correctly...

http://StirlingBuilder.com

Cheers!
-NerdyEE
by NerdyEE
Wed Nov 14, 2012 9:59 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: L.T.D. with hi torque
Replies: 21
Views: 11879

Re: L.T.D. with hi torque

Greetings fullofhotair! Most SE’s have rods that connect the piston & displacer to a crankshaft/flywheel (yes?). The piston & displacer have rings, seals, and/or dang small gaps to prevent compression/expansion losses. This is what I mean by moving seals… How would you keep that stuff in you...
by NerdyEE
Wed Nov 14, 2012 9:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: L.T.D. with hi torque
Replies: 21
Views: 11879

Re: L.T.D. with hi torque

Vamoose! Take a look at the Helios Project Continued and see how he increased the number of bulbs to make operation smoother, faster and more torque… http://www.youtube.com/watch?v=bs_OtCsDJoY I believe you are correct on the “HAND BOILER”. Or was the hand boiler just one section... :shock: Still so...
by NerdyEE
Wed Nov 14, 2012 9:41 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: L.T.D. with hi torque
Replies: 21
Views: 11879

Re: L.T.D. with hi torque

Hello FullOfHotAir! Would your mechanism need seals? If yes, then from what **VERY LITTLE** I know about this stuff, it is not a match. As I mentioned to Blade, and I can’t discuss who/what I was involved with, but from what I observed and the video referenced in the “Supercritical” posting (http://...
by NerdyEE
Mon Nov 12, 2012 1:40 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: L.T.D. with hi torque
Replies: 21
Views: 11879

Re: L.T.D. with hi torque

All excellent questions FullOfHotAir!
Actually I was hoping you would find this link: http://www.youtube.com/watch?v=Za9td23Vk0c
Is it not big enough???
-NerdyEE
by NerdyEE
Sun Nov 11, 2012 4:13 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: L.T.D. with hi torque
Replies: 21
Views: 11879

Re: L.T.D. with hi torque

Are you thinking of the Minto Wheel? Google and YouTube to see some interesting contraptions...
-NerdyEE
by NerdyEE
Fri Nov 09, 2012 8:49 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: MPPT for Stirling Engines
Replies: 46
Views: 24155

Re: MPPT for Stirling Engines

Hi Vamoose! I agree on your observations of various home brew generating systems and had fun trying to get something to couple to the JS002 Toys SE setup. As I told you privately, I bought the JS002 instead of the units with LED’s built in, because I wanted to couple it to a Maxon motor I used with ...
by NerdyEE
Thu Nov 08, 2012 8:50 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: MPPT for Stirling Engines
Replies: 46
Views: 24155

Re: MPPT for Stirling Engines

Hi Again Bumpkin, Here is a plot of the input and output voltage, current, and power. It is a bit cluttered! The legend shows the first three lines use the scale on the left, where the last three use the scale on the right. I called this the EVERYTHING PLOT as it is a plot of everything (nothing hid...
by NerdyEE
Thu Nov 08, 2012 10:24 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: MPPT for Stirling Engines
Replies: 46
Views: 24155

Re: MPPT for Stirling Engines

Hi Bumpkin, THANK YOU for your kind words, especially since I didn’t think a Solar MPPT would work at first! Dramatic results are an understatement. Now I didn’t’ really watch the input power at first, but will assume the output power from the SE engine has always been around 20-25mWatts max. So goi...
by NerdyEE
Wed Nov 07, 2012 8:34 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: MPPT for Stirling Engines
Replies: 46
Views: 24155

Re: MPPT for Stirling Engines

Hello to all! If I had read some of claims like the above without some type of proof or evidence, I think I would have flamed that in-DUH-vidual. Since posting the above, I have expected/feared it from others. So hopefully I have a treat for those who are interested. The most difficult task in all o...
by NerdyEE
Sun Nov 04, 2012 8:35 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: MPPT for Stirling Engines
Replies: 46
Views: 24155

Re: MPPT for Stirling Engines

Hello to all! Below I demonstrate a MPPT chip development board with my JS002 Toy SE and DVD spindle generator setup. It allows me to pump x4 - x5 more current into a white LED load than the previous demonstration. In researching other MPPT devices, here are some of the more interesting units. Vamoo...
by NerdyEE
Sat Oct 27, 2012 5:45 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Big Stirling Engine
Replies: 47
Views: 43795

Re: Big Stirling Engine

Huston, we have a problem… Last week I remained hopeful despite that fact that the status has not changed. It is still at an ISC (International Sorting Center) in New York, New York. So I contacted the USPS and was told I needed to contact the seller. Below is the email thread (backwards)… On Mon, O...
by NerdyEE
Sat Oct 27, 2012 1:10 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: MPPT for Stirling Engines
Replies: 46
Views: 24155

Re: MPPT for Stirling Engines

Now back to our regularly scheduled programming… :shock: Sorry for no progress report as of late. Had to come up with a new laser controller concept, so had my brain filled with that. But I did get a chance to do some leisure reading. The Dingo controller post by Vamoose is a very interesting gadget...