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Steam conversion for my pickup....

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Steam conversion for my pickup....

Post  Thorgierr on Tue Oct 28, 2008 3:28 am

Having made my way over here,
I am continuing my chronicle on my truck conversion.
The starting place is a Dodge D-50 (1980 made by Datsun) and rather than rebuild the head (cracked again after the last repair 9 years ago) I am scraping the whole engine and transmission and replacing the works with a two cylinder steam engine and a Lamont steam generator. I had thought about going to a turbine generator setup but I think I'll go straight mechanical.

Some web sites...
Different engines.. http://www.keveney.com/ (animated!)

The steam maker..... http://www.steamautomobile.com/northea/lamont.html

ps the crank case of the D-50 engine is going to become a bash valve single acting steam engine.....(look at the CO2 engine in the keveney site)
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Re: Steam conversion for my pickup....

Post  Eisenfaust on Tue Oct 28, 2008 11:55 pm

I would love to see this in action when you are done with it.
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Re: Steam conversion for my pickup....

Post  HAC on Wed Oct 29, 2008 1:35 am

If you're going with recip steam, might I suggest a more conventional boiler setup? Lamonts prefer high water flow rates and that can be a bit tricky to manage. Why not look at something like a marine Yarrow design in conjunction with a condensor system, or a Doble style flash boiler.

Cheers
Harold
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Re: Steam conversion for my pickup....

Post  Thorgierr on Wed Oct 29, 2008 2:42 am

That is a valid suggestion,
My selection of the Lamont is based on the use of mineralized water, the concentration of scale will drop out in the steam drum and allow blow down for the sediment. And while it is not strictly "Steam", I am going with an electronic control system, with a ladder logic that reduces the management of the Lamont. The prototype will be a copper setup and run at 600 to 800 psi, also I am considering an accumulator (dry) to balance out the demand curve. The engine it's self will be a uni-flow (center exhaust) with twin cam link valving. I also have an idea regarding the condenser that I have not seen any where (increasing efficiency I hope) as condensers have been the place where big gains still may be made.

Drawings will follow as soon as I can get caught up on some writing deadlines I have. (another re write on a proposed 1632 story ((With an airship)) it is hard to pull a story out of straight tech exposition)

Regards,
Kevin



HAC wrote:If you're going with recip steam, might I suggest a more conventional boiler setup? Lamonts prefer high water flow rates and that can be a bit tricky to manage. Why not look at something like a marine Yarrow design in conjunction with a condensor system, or a Doble style flash boiler.

Cheers
Harold
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Re: Steam conversion for my pickup....

Post  HAC on Wed Oct 29, 2008 3:31 am

AH.. I didn;t know you had a hard water issue.. The Lamont should work, there, but I'd suggest you avoid superheating, or if you do want to use superheat, then be careful as to your tube layout as Lamonts are really a pain to superheat properly. The common tendancy is to put the superheater tube behind part of the generating tube, so that it receives both radiant and convective heat transfer, depending on steam generation rates.. Tricky bit of math to calculate the length and diameters of the superheater..

Cheers
Harold
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Re: Steam conversion for my pickup....

Post  Thorgierr on Wed Oct 29, 2008 4:31 am

The superheat issue is one of the reasons for the copper prototype. I am going with a bottom burner, into a dome top chamber with a forced draft down and around a curtain ( the primary coil forms the wall by the addition of a high temp vane connecting the loops of the coil) and then out the stack. Water pre heat will be above the dome and super heat (stainless steel tubing) will be a coil in the stack. Also prior to super heat I'll have a multi disk drier above the steam drum with the safety pop valves and pressure sensor on it. (it does double duty as a manifold) The electrical system will be a turbine made from an air motor (salvaged from a compressed air drill) powering an alternator. This allows the use of common 12 volt systems and a battery for start up.

All right I will start transferring my drawings to electrons.

Regards,
Kevin
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Re: Steam conversion for my pickup....

Post  HAC on Wed Oct 29, 2008 4:56 am

Not bad... How do you plan to handle water injection with the higher flow rates in a Lamont?

Cheers
Harold
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Re: Steam conversion for my pickup....

Post  Thorgierr on Wed Oct 29, 2008 9:00 am

I have come up with an idea for a submerged pump (crank driven, 2 one way flaps) where the pump shaft is driven by an electric motor, a water level sensor has a high/low set of limits that should keep up with demand. If one pump doesn't do it more can be added. (this is where flexibility the electrical control system makes up for the losses due to generation and conversion of electric back to movement)

Regards,
Kevin or Thorgierr or who eve I am right Now.



HAC wrote:Not bad... How do you plan to handle water injection with the higher flow rates in a Lamont?

Cheers
Harold
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Re: Steam conversion for my pickup....

Post  HAC on Wed Oct 29, 2008 6:37 pm

You might want to look a an old fashioned stem lift injector. I'm not a big fan of having electrical injection, when good old steam can do the job. I'm not a big fan of electrical feed systems, unless you can be sure to have a fail-over to something, well, manual, and a bit more reliable. such as a steam injector. Low boiler water generally equals disaster to follow..

Cheers
Harold
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Re: Steam conversion for my pickup....

Post  Thorgierr on Thu Oct 30, 2008 6:30 am

And the jump back to Brass Goggles


http://steam.punqs.org/bg-forum/index.php?topic=11691.0

Regards,
Kevin
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Re: Steam conversion for my pickup....

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