Need help with LPE

[Renamed99]

******* Some back story, don't read it if don't want to******

It's been a while since last I was here, but it seems I need your help once again. Every year our students who are in 11 grade have to do project that would take whole school year. It can be anything from making some sports competition, painting something or writing something to proving something why some things in life are the way they just are. I decided to prove that it's possible to use dry ice as source of energy and reuse CO2 gas. When dry ice melts it never becomes liquid form, because of that we can use pressure from melting dry ice to power some sort of engine, in my case I am going to prove it with LPE.

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You could help me, by answering these questions.

*I need to make 2 or 1 cylinder LPE.

• Size of engine doesn't matter
• It has to be strong as possible  
• I need tutorial for it :D

*Does anybody have any experience using dry ice to power LPE, what would you do or recommend to me when I am going to do it?

*What width are lego pneumatic hoes (I am going to buy them from 3rd party site, because original lego ones are expensive) 

Thanks anyway!

 

[mocbuild101]

2 hours ago, Renamed99 said:

1. I need to make 2 or 1 cylinder LPE.

• Size of engine doesn't matter
• It has to be strong as possible  
• I need tutorial for it :D

2. Does anybody have any experience using dry ice to power LPE, what would you do or recommend to me when I am going to do it?

3. What width are lego pneumatic hoes (I am going to buy them from 3rd party site, because original lego ones are expensive)

1. Just google it...

2. I don't know if it would work, but make sure you have a way to release excess pressure if something goes wrong.

3. They are about 4mm outside, and 1-2mm inside. 

[Renamed99]

1 hour ago, mocbuild101 said:

1. Just google it...

2. I don't know if it would work, but make sure you have a way to release excess pressure if something goes wrong.

3. They are about 4mm outside, and 1-2mm inside. 

Well, I saw some videos on youtube that it's possible. 

[Blakbird]

The CO2 from sublimating dry ice is going to be very cold and will probably destroy all the seals in LEGO pneumatic cylinders and maybe crack the tubing as well.  Interesting idea but I think you are going to have some trouble here.

[Leonardo da Bricki]

You need to find very small gauge piping at a hardware store. And I don't think Lego is the best medium for this... The plastic might even shatter from the temperature.

[nicjasno]

Pictures of how to make it in the link in the description
 

 

[Renamed99]

19 hours ago, Leonardo da Bricki said:

You need to find very small gauge piping at a hardware store. And I don't think Lego is the best medium for this... The plastic might even shatter from the temperature.

Will do :) but do you have any idea how much do they cost? ( I will have to get anyway, but just curious). I thought the same thing but the thing is I won't have to run it work a long time, It's just a device to prove that it's possible in theory to run engine on dry ice. Also there is some heat that is generated by engine so it might even out...

18 hours ago, nicjasno said:

Pictures of how to make it in the link in the description
 

 

Did you have to mod it anyhow? 

[Leonardo da Bricki]

@Renamed99 Nope, sorry. I do not know how much it costs, but would estimate $5 per meter...

[nicjasno]

7 hours ago, Renamed99 said:

Did you have to mod it anyhow? 

No mods necessary for it to work. Mods just improve performance.