Close

Tracing the cooling path

A project log for Beer Butler Robot, Refrigerator on a Roomba

Mobile refrigerator! An insulated tube built on a hacked Roomba controlled by serial connection. Indoor Nav by QR code ceiling tiles

josh-starnesJosh Starnes 04/15/2018 at 17:430 Comments

So we need to make sure we give the compressor the same load as when it was in the fridge. I pulled out the evaporator ( the cold part)  and carefully traced the path and measured to find how long the evaporate coil needs to be.

The small end on the evaporator is a restriction to keep pressure up, once it pushed through this capillary it passes through the dryer and then the condenser again to repeat the process.

I simple make the copper tubing the same length as the factory made their path to maintain the level of efficiency that the factory intended.  Hmm I think I voided the warranty.

Discussions