Search found 27 matches

by justincorhad
Thu Mar 31, 2022 1:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

Yeah that would be ideal for sure, actually get to visualize what’s happening in there. It’s just so strange that the flow rate increases. My thinking was that the opposite would be true, if you lengthened the tube then it has more water to try and push through the outlet, which requires more energy...
by justincorhad
Thu Mar 31, 2022 12:22 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

Oh yes, those mess of pipes as well haha the whole thing is really a mess of pipes. Trying to change things and mess the dimensions and geometry doesn’t work so well when a guy only has a certain amount of fittings at his disposal unfortunately. Tom, by back pressure on the valve, are you speaking o...
by justincorhad
Wed Mar 30, 2022 5:56 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

I don’t know if anyone is still keeping up on this thread or will see this reply, but I did a little experimenting and managed to more than double the pumping output of this unit! Check the video out and see it. https://youtube.com/shorts/tisahnp5ApI?feature=share I found that: 1) you get the best p...
by justincorhad
Sun Feb 20, 2022 2:25 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

I definitely feel like the small 1/4” one I built has better performance in terms of heat input to work (water pumping) output. Most likely because such a small volume takes seconds or fractions of seconds to boil and then condense, vs the 1/2” diameter, yes it does work but it’s such a larger volum...
by justincorhad
Sat Feb 19, 2022 11:58 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

https://youtube.com/shorts/S6Cc2NEAZaU?feature=share Here it is plugged into my rocket stove. The flow has increased substantially. Obviously this set up is still very inefficient as most of the heat is going to bypass the steam tube in the wide open chamber. The pinging you hear the the valves open...
by justincorhad
Sat Feb 19, 2022 9:52 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

https://ibb.co/qdwnj4q Here is the neswest version, a 1/2” model. The “steam tube” for lack of a better description is now made from copper, my previous 1/2” version the entire thing was made from black pipe. My plan is that the entire copper tube should be surrounded by heat, the length of tube can...
by justincorhad
Sat Feb 19, 2022 9:47 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

Instead of ice cooling and condensing the water vapor, in your setup, the water vapor (steam) is cooled and condensed by loosing energy because of having done the work of pumping water, as well as loosing heat to the atmosphere through the copper tube, but that in general would be why though steam ...
by justincorhad
Sat Feb 19, 2022 9:44 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

I saw a related setup on YouTube recently. Water is "boiled" at cold temperature in a vacuum, the steam powers a turbine, after which the steam condenses. Not exactly the same as your setup, but the idea that there is a formation of steam that does work and then condenses back into water ...
by justincorhad
Sat Feb 19, 2022 9:43 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

I would be VERY interested to know if the outlet would develop pressure at the "head". Tom I actually closed the outlet off and managed to build around 10 psi on the bigger of the two systems. I never did try to restrict it per say, I think maybe a bit more heat and some way to loose as l...
by justincorhad
Fri Feb 18, 2022 1:25 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Re: Steam powered pump?

Also I did some modifications so that the TEE pumping section was above the water level in the reservoir, I left the inlet check valve at the base of the reservoir to act as a foot valve. It still worked, I wanted to know if this setup had any suction power or if the water level would have to be abo...
by justincorhad
Fri Feb 18, 2022 1:17 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Steam powered pump?
Replies: 21
Views: 12319

Steam powered pump?

After experimenting with fluidyne Stirling engines, I wondered if something similar could be made to run on steam. After many failed attempts and a lot of head scratching this is what I came up with. https://youtube.com/shorts/qBpl3FJP9pA?feature=share This entire arrangement was filled with water b...
by justincorhad
Sun Feb 13, 2022 6:05 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha motor with 180 degree crank phase?
Replies: 30
Views: 10768

Re: Alpha motor with 180 degree crank phase?

Oh wow, I was under the impression that Ericsson had built and sold many caloric engines, one even powering a ship, is this not true?
by justincorhad
Sun Feb 13, 2022 5:14 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha motor with 180 degree crank phase?
Replies: 30
Views: 10768

Re: Alpha motor with 180 degree crank phase?

I’ve often wondered with the Ericsson, what is the point of the large reservoir?? Would it not achieve the same thing using a simple tube in place? Maybe for extra cooling I’d imagine.
by justincorhad
Sun Feb 13, 2022 4:50 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha motor with 180 degree crank phase?
Replies: 30
Views: 10768

Re: Alpha motor with 180 degree crank phase?

Matt I just looked up some brief tutorials on how to read PV graphs and I completely understand what you were talking about now. Basically if you try to implement my idea into a PV graph it would simply be a straight line that goes back and forth with no curves, no pressure changes. I think possibly...
by justincorhad
Sun Feb 13, 2022 4:44 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha motor with 180 degree crank phase?
Replies: 30
Views: 10768

Re: Alpha motor with 180 degree crank phase?

Matt I had trouble with it earlier as well, just go to https://imgbb.com/ upload your photo and it will give you the option to copy the link it creates for your photo.