jones
Active Member
Steam loco's and IC engines
Posts: 41
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Post by jones on Sept 4, 2007 8:51:04 GMT
... from a coffee machine which I found on the side of the road. Needs a superheater, but at slow speeds it works OK. members.optusnet.com.au/barberandrew/0904_0003.aviWarning for dialup users, 8MB file. I honestly couldn't believe it worked. Does anyone have any idea what pressure these things output? |
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lancelot
Part of the e-furniture
Posts: 471
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Post by lancelot on Sept 4, 2007 11:43:05 GMT
Hi Jones,
although I am on Broad Band, sadly it does not work for me...after some few minutes it comes up as a large flickering Green circle... ''STARGATE'' perhaps...Australia here I come... ;D
All the best for now,
John.
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jones
Active Member
Steam loco's and IC engines
Posts: 41
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Post by jones on Sept 5, 2007 5:03:32 GMT
Hmm, thats very strange. I have updated the video with a different codec. Maybe now it will work.
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Post by modeng2000 on Sept 5, 2007 5:45:48 GMT
The video works this morning Andrew. What ever next  John |
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steam4ian
Elder Statesman
One good turn deserves another
Posts: 2,069
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Post by steam4ian on Sept 5, 2007 8:36:26 GMT
G'day all.
I only get the sound, and indication of a CODEC Error.
In spite of this I get the picture in my mind.
My coffee machine boast that the steam pressure is 15bar. I note that the steam is not dry when it exits the nozzle so you are right regarding a superheater.
The whole concept has promise because flash steam generators don't come under the boiler codes. Visualise a diesel outline model driven by a 2 cylinder steam engine powered by a flash boiler.
Regards,
Ian
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abby
Statesman
Posts: 927
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Post by abby on Sept 5, 2007 19:35:30 GMT
Seem to recall an article in ME about flash boilers and high speed engines for hydro-planes , very high pressures though and very hot steam - video works ok but streams very slow !
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Post by mutley on Sept 5, 2007 21:56:08 GMT
Still can't see the video, what coded have you used?
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jones
Active Member
Steam loco's and IC engines
Posts: 41
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Post by jones on Sept 5, 2007 23:04:31 GMT
I used the XviD MPEG-4 codec.
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steam4ian
Elder Statesman
One good turn deserves another
Posts: 2,069
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Post by steam4ian on Sept 5, 2007 23:19:46 GMT
G'day Jones, Abby et al.
Firstly, I am obviously not the only one who can't see the video.
Secondly, regarding flash steam. I bought the book "Experimental Flash Steam" (MAP) and was disappointed with it. The material was anecdotal and historical without any analysis. IMHO a useful book needs some buildable examples and/or a description of the principles involved. One thing I would appreciate is the feed pump rate vs steam demand-pressure. I know that those with more thermodynamics knowledge than I can probably work this out; but I didn't do Thermodynamics I with my engineering course.
My experience with the expresso coffee machine (I make a mean Cappuccino) shows that some form of steam separator is essential; I wonder it automatic drain cocks would work at releasing the water component?
Enough raving.
regards
Ian
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