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Help me !!!

Posted: Sat Oct 15, 2016 3:19 am
by thanh-cuibap
I do the hot zone by aluminum thin 0.3 mm, but my stirling engine to run at high temperatures,WHY ?? may be due to poor thermal conductivity of aluminium ???
https://drive.google.com/file/d/0B5eXKb ... sp=sharing
sorry, my english is not good !!

Re: Help me !!!

Posted: Sat Oct 15, 2016 4:20 am
by thanh-cuibap
it only runs on a gas stove in the kitchen and do not run alcohol stove

Re: Help me !!!

Posted: Mon Oct 17, 2016 1:10 am
by Ian S C
The problem with aluminium is the conductivity is too good, also it does not stand high temperatures.
Ian S C
DSC01133 (800x600).jpg

Re: Help me !!!

Posted: Mon Oct 17, 2016 3:40 am
by thanh-cuibap
Thanks Lan SC! I have checked step by step and I realize similar problems you said !!
Why..Forum only Lan is suggestions and guidelines for me ??

Re: Help me !!!

Posted: Tue Nov 22, 2016 3:02 am
by Trevor
High Masaruneema. Ian knows a lot and seems to be the guru here, however, I have built a few small candle and spirit burner hot air engines over time in aluminium and they do work with small flames as candles. Ian is right when using alloy as the heat does travel up the displacer tube very quickly and can significantly reduce your output, but don't let that stop you from trying it as they do work in small models and is used quite a lot.
I will post a picture or two of the models I have made of alloy on you post tomorrow when I have the time.
Trev

Re: Help me !!!

Posted: Tue Nov 22, 2016 3:18 am
by Trevor
Sorry Masaruneema - The message is for Thanh-cuibap
Trev

Re: Help me !!!

Posted: Tue Nov 22, 2016 6:19 am
by thanh-cuibap
thank Trevor, Ian, Masaruneema !!!