1st Gen Lunchtable Thread - General Discussion

We are upset about current prices, that's why we haven't bought 500 set ups yet

I was thinking the whole set up for 5k, limit orders to 10 at a time cause I have a full time job I'd like to keep

 

Also, am I reading this right?
https://thermoelectric-generator.com/wp-content/uploads/2023/11/TEG12VDC-24LIQUID60W-Specification-Sheet.pdf

It uses hot liquid to create power?

 

Yeah looks like it converts thermal energy into electrical energy. But seems like it needs alot of energy to make that happens. You need a pump, heat source, some way to dissipate that heat, water reservoir and a make up water system

 

We have a TEG heat trace system already to keep lines from freezing, natural gas for heat

 

Alot of questions like what is the GPM requirement of the pump needed. What is the btu capacity of the heat exchange so properly dissipate heat. Whats the operation temp and pressure because you could possibly just make a bomb with that

 

There are cheaper ways to make bombs

If you tried hard enough

 

Do those put out alot of heat. Because that thing is talking about putting it on a direct flame on a stove top

 

Ive blown 4000psi rated hoses with dry ice before

 

Looks like it converts heat to power, but requires a lot of heat to work since a stovetop isn’t enough

 

I mean 200°+, sounds like I needa make a call to these guys

 

Is the goal to use an existing heat source and one of those for power instead of solar and battery?

 

Supplement solar for the days we never get to see the sun in the winter
I just barely found that, made me curious

 

I mean if i built it, it be like this. Probably gunna use like 1 1/2” wall insulation too because that water had to be a few hundred degrees.

 

Yes thats my sons white board. Gotta teach him P&IDs eventually

 

That's not G code

I don't know what that is

 

We heat glycol and pump it down flow lines about 150 feet and loops back to the heater

 

Their P&ID calls out a radiator but doesn’t give how much BTU rejection capacity is needed. Also calls out a water revisor too. Its also a close loop system so you would need a expansion tank to maintain proper pressure in the system because its staying make 10psi.

Is it glycol compatible too? because you are gunna need like 42% glycol to stop from freezing down to -10°f

 

Ima call them on Monday I think

 

Yeah i would get more info. Because its basically a boiler system, and from all my experience installing hydronic systems you gotta know way more info then they are providing.

Your home water heater system has a more complex P&ID then what they had

 

Its also calling out 60watt max output, which is like 5a at 12vdc. The compressor you have looks like its 19a at 12v which is like 228watts.
So you may see voltage drops on the battery as the compressor runs