Stirling Blue - Power Measurement - Blog 7 (updated)

RE: Stirling Blue - Power Measurement - Blog 7 (updated)

snidhi — Wed, 20 Jun 2018 19:17:55 GMT

The machine goes really fast ..

RE: Stirling Blue - Power Measurement - Blog 7 (updated)

BigG — Tue, 12 Jun 2018 10:28:52 GMT

Hi Doug,

Very nice demo on the power (open voltage & load).

Regarding PSoC 6. There is a switch (SW5), which gives you 3 power options. Top - 1.8V, Middle - 3.3V and Bottom is variable between 1.8 & 3.3V. So the MCU should be quite happy with the variable setting. The EPD shield requires a 3V input (vin & 5V are NC). So you would need some sort of power regulation for that. Also, the USB-C charge controller (CYPD3125-40LQXIT) min-max voltage range is 2.7V to 5.5V. So, you are just reaching min voltage under load.

G://

RE: Stirling Blue - Power Measurement - Blog 7 (updated)

jw0752 — Tue, 12 Jun 2018 03:55:27 GMT

Hi Doug,

Very nice demonstration. What was the source of the strobe effect on the connecting rods. I am guessing you are under florescent light.

John

RE: Stirling Blue - Power Measurement - Blog 7 (updated)

ntewinkel — Mon, 11 Jun 2018 23:20:34 GMT

Very cool! I love how that little thing hums along!

Where did you get the sterling engine?

ps, your video popped up as a suggestion on my tv earlier today, so I knew there'd be an e14 blog post to go along with it soon [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-9fd7468d-eb27-4fa0-8a4a-2746a8b275a1/contentimage_5F00_2516.png:16:16]

pps, Have you seen those tea-light powered LED lanterns? They seem to use peltier plates, but at 1/4 watt I imagine you could power a few LEDs to turn a small flame into lots of LED light from your sterling engine [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-9fd7468d-eb27-4fa0-8a4a-2746a8b275a1/contentimage_5F00_2516.png:16:16]

edit: here's one: Candle-Powered LED Lantern - Lee Valley Tools

-Nico

RE: Stirling Blue - Power Measurement - Blog 7 (updated)

genebren — Mon, 11 Jun 2018 20:00:09 GMT

Doug,

Very nice update on your sterling engine. That little baby can sure spin without a load. I was actually quite surprised that loaded, it did as well as it did.

Very nice!

Gene

RE: Stirling Blue - Power Measurement - Blog 7 (updated)

DAB — Mon, 11 Jun 2018 18:38:43 GMT

Great update Douglas.

It is clear the Stirling engine does not generate enough power. At a quarter watt, you would only get about 1.5v out at a full 170 mA load.

So I think you confirmed the power capability of the engine.

DAB