T. E. Haynes Hot Air Engine.

[Bo’sunParticipant @bosun58570]

Good morning All,

A couple of years ago, I built the T. E. Haynes Hot Air Engine, and it ran extremely well using a Trangia meths burner from a camping stove. Admittedly, with the addition of a cooling jacket on the "cold" end of the transfer cylinder.

Recently, I decided to run it using the attached gas burner. I used a disposable propane/butane cartridge and regulating valve. The result was a very sooty flame, completely blackening the transfer cylinder.

Would it help if I modified the burner like a Bunsen Burner to entrain and regulate the air/gas mixture?

I did wonder if the burner jet was a bit on the large side at 1/16" dia?

Thoughts and comments appreciated.

I know it's only a basic model, but it has nostalgic memories from making the first one at school 50 years ago.

[Bo’sunParticipant @bosun58570]

Running it on gas?

[JasonBModerator @jasonb]

More air will give a bluer less sooty flame and 1/16" is massive

[Bo’sunParticipant @bosun58570]

Thanks Jason,

Any suggestions as to burner orifice size anyone?

[JasonBModerator @jasonb]

small as you can get, something like a No5 which is 0.2mm

This uses a 0.07mm jet from the smallest Sievert nozzle

 

 

Edited By JasonB on 21/06/2023 11:33:29

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