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Post by jetjeff on Sept 20, 2016 4:36:06 GMT -5
Hi John,
Thanks for the info. I use a gas fitting from a hikers stove to start my Kingtech K-80, but this setup probably wouldn't supply enough gas for these larger turbines.
Jeff
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Post by smithy1 on Sept 20, 2016 14:52:05 GMT -5
Hi John, Thanks for the info. I use a gas fitting from a hikers stove to start my Kingtech K-80, but this setup probably wouldn't supply enough gas for these larger turbines. Jeff Yeah....won't even be close. Would supply enough for a light-off but not much else. Cheers, Smithy.
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Post by jetjeff on Sept 20, 2016 17:17:38 GMT -5
Hi All,
I sent an email to Williams International about possible employment. I've been doing IT work since 1979 and am looking for a change in my career path. I sure hope these homebuilt engines of mine work,,,lol.
Jeff
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Post by jetjeff on Sept 23, 2016 4:54:51 GMT -5
Hi All, I added an exhaust cone. For initial testing, it will be removed. Jeff
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Post by jetjeff on Sept 25, 2016 15:58:29 GMT -5
Hi All, I'm working on a decent test stand, one that will be able to measure thrust (maybe wishful thinking on my part). I used short sections of my automatic garage door opener that went bad (the track from the screw drive). I'll use nylon washers as glides. By next weekend I should be able to 'kick the tires and light the fires'. Jeff
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Post by racket on Sept 26, 2016 0:31:50 GMT -5
Hi Jeff
Can't wait to see this beast light up :-)
A good thrust measuring system is a great asset to "tuning" and general overall assessing of the design .
Cheers John
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Post by jetjeff on Sept 26, 2016 3:46:15 GMT -5
Hi John, Yeah,,,you and me both. If these engines run successfully on propane, I may try Ethanol as a fuel (just as a science project). Everclear 190 isn't sold in Michigan, but my nephew drove to Indiana to pick me up 4 jugs of the stuff. Jeff
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Chuks
Senior Member
Joined: August 2015
Posts: 498
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Post by Chuks on Sept 27, 2016 18:50:12 GMT -5
what a nice engine you got there MATE, cant wait to see the engine run.
congratulation in advance.
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Post by racket on Sept 27, 2016 20:09:35 GMT -5
Hi Jeff
And that "juice" comes with an inbuilt pouring spout ;-)
She's be using twice the flow rate as kero though due to the low BTU/lb
Cheers John
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Post by jetjeff on Sept 29, 2016 1:14:56 GMT -5
Hi All, Thanks Chuksy, I can't wait to see it run also. John, whats sort of strange is, if you Google 'what is the energy density of Ethanol', you'll get values anywhere from 23.4 to 29.7 Mj/kg, depending on what website you click on. But you'd be using at least 26% more fuel. More progress was made on the test stand. Jeff
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Post by racket on Sept 29, 2016 2:48:21 GMT -5
LOL, the bit of water in the brew might help ;-)
Ethanol is ~12,000 BTUs/lb , at 95% that drops to ~11,400 btus/lb, kero is at ~18,500 , so you'd only have a tad over 60% of the BTUs/lb , so a 1.6 times increase in fuel flow rate .
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Post by jetjeff on Sept 29, 2016 4:15:54 GMT -5
Hi John,
Thanks.
My machines are in the basement of my house (I have a walk out basement), the weight of the Bridgeport is cracking my floor. If I'd know I'd be covering it to a machine shop, I would have had the floor poured 8" thick,,,lol.
Jeff
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Post by jetjeff on Sept 30, 2016 4:13:59 GMT -5
Hi All,
If I decide to build another Schreckling turbine, would there be any significant improvement in compressor efficiency if I forward slanted the blades say 20 to 45 degrees? It would add some complexity to the build, but it seems doable.
Jeff
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Post by jetjeff on Oct 2, 2016 9:14:50 GMT -5
Hi All, I just finished the test stand. The base is just MDF, painted with water? based epoxy, the kind for your garage floor. The maker says it's gasoline and oil proof (and hopefully kero, turbine oil and ethanol),,,lol. It even has a rearview mirror to keep an eye on the turbine temp. Jeff
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lofi
Member
Joined: October 2014
Posts: 47
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Post by lofi on Oct 2, 2016 9:32:29 GMT -5
Lovely work, hope the test is successful. Keep the updates coming
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