Friday, July 29, 2016

Hot Air Engine

If you fill in enough surveys for the Guardian, they give you 50 quid to spend at Amazon. In those balmy pre-Brexit days, a touch over half of that bought me a tiny hot air engine from Amazon. Now it costs about 4 quid more.
ELENKER Mini Hot Air Stirling Engine Motor

But what fun it is. A little bit of meths (is it wrong that I like the smell?) and off it potters.

The lack of instructions with the model caused me a slight issue. As packed, there is an elastic band holding the waggly bits still. It's not obvious, but this has to be removed for the engine to work.

Torque is minuscule, so I don't think I'll be able to make it do any useful work, but who cares? 

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