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 cant 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.