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RHOMBIC DRIVE STIRLING ENGINE, PART FIVE

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Published on Nov 8, 2008

Testing the efficiency of the generator in order to calculate the mechanical output of the engine.

Comments • 67

Martin Graham King
Your engine sir, is a thing of beauty ..
Michael Bushea
You mentioned the gears were in an oil bath. I'm novice here but have been very intrigued with you. If the gears are enclosed try using ferrofluid instead of oil, it won't break down but has very little friction by adding a neo magnet on the case. If I could help at all this would be it for now. Great work very inspiring 
Dylan T
do you have plans for that engine design?
cesar gonzalez
thanks are good videos, where you bought the engine?
Atomix330
Really interesting. Can you explain the drill was running at approx. 2700rpm, but the engine only approx 700 rpm.? Many thanks
Chris Larn
Why the disparity in rpm between your measured 700 rpm on load and 1100 rpm off load and the required 2600 rpm need by the drill to produce the 30 watts you set your experiment at. That suggests the generator was a different one?
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John Smith
Barumman a thought.   For people wanting to persue Stirling Engine (SE) design, one of the difficulties becomes having a design that works.   Linux OS used a communal approach.   Crowd sourcing and a web page coofers mechanisms to run a not-for-profit organisation to develop the engines further.  Places like GitHub offer places where communal tools such as FEA/FDA and QCAD can be used to develop modelling tools; other webspacesneed to be available swap advances in engineering design and make machining easier.   For others reading this,  please indicate support or otherwise below.   I am working on a low temperature difference engine but there are significant thermodynamic problems to be overcone, a major one has been overcome by implementation method but it's still only conceptual at this stage.
captain42979
is sterling engines a thing of the future? As we advance in technology and try to get overunity would sterling engines combined with high efficiency generators the answer or one of the answers seeing that they are so simple with less moving parts making less friction?
Antonsson
In video #4 he measures both voltage and current, 13.5V 2.3A, that's where he gets his' 30 watts from. Assuming the lamps are the same, all he needs to know is the driving torque and rpm. No? If we had the stroke and bore and pressure maybe someone could calculate the temperature difference in the engine for each cycle? Thanks for video!
Adenzel
One thing I'm left wondering is how much heat energy was put into the engine to get the 60 watts out, and what it's equivalent would have been in Watts. I'm guessing that would be quite hard to calculate. Truly awesome build =D
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