What is a recycle loop system and how does it work?

[rwooduk]

I have a recycle loop system:

Please could someone give me a place to understand the theory behind it? What would be its purpose? Where would it be used?

I've googled recycle loop systems but I can't find anything relevant, is it the same as a pressurized water reactor...

https://en.wikipedia.org/wiki/Pressurized_water_reactor

What would it be called generally?

Just need a place to start or a few ideas.

Any help would be appreciated.

 

[Ingrid Eldevj]

are you thinking along the lines of a device that generates more energy than it uses?

 

[rwooduk]

are you thinking along the lines of a device that generates more energy than it uses?

No, it's part of a lab experiment to investigate the "mass flow rate" of the system and also the "Steady State Heat Balance". I'm trying to learn about the theory of how the system works and what the system is used for in real life. I just don't know what the system would be called as "recycle loop" doesn't bring up the relevant info on a google search. Thanks for any ideas.