Скачать или смотреть Stirling Engine Horizontal Engine - Dynameter Run - Part 13

So here it is!


I've been building this for 6 months and it's now time to see if the hard work has paid off. How much power does it produce?

To see other videos of the Mk3 stirling engine:
   • Building a Stirling Engine that is Wood Fi...  

Last time we got it running smoothly without any problems so we thought it would be a good time to setup a way of measuring the power and seeing how much it produces. I anticipated it might produce 200 watt, we shall see?
Thankyou for watching

I made the pony brake to measure the torque out of some wood and a bicycle brake that acted upon a set of kitchen scales. The RPM was measured by using a magnetic proximity sensor attached to an LED read out. The lever acting on the scales was 2ft long so I multiplied the measured reading X2 to get lbs/ft

So we completed the test and got the data. I put it into excel to calculate the results. Just to note, these have all been rounded up to the nearest, 2 decimal places:

RPM Ibs/ft HP Watt
50 3.18 0.03 23
100 4.54 0.09 64
150 4.04 0.12 86
200 4.70 0.18 133
250 4.16 0.20 148
300 2.44 0.14 104
350 3.85 0.26 191
400 2.33 0.18 132
450 1.94 0.17 124

So there we go, almost the 200 watts I was looking for! Not much in the grand scale of things but not bad for a stirling engine!

The thing I'm most happy about with this engine is it's simplicity and smoothness of running. The final design is a little bit different that I originally imagined but I'm happy. So far it seems to be very economical to run and we will test this at some point.

I have used it the power a water pump in the following video and will hopefully do an endurance run at some point to see if it's reliable too.

All the best

If you need to contact me:
[email protected]

Contents
5:07 Dynameter Run
7:16 Results