Hi all,

this is my first post on this forum, I am a maintenance fitter, not a refrigerations technician and I am seeking some advice on an idea I'm working on.

Basically, it's a heat exchanger that will be used to chill water - I believe this component is called the evaporator.

Initial water temp will be between 5C-10C and I require the water to be 0C or less when it leaves the exchanger.

The basic idea is to have a 2" steel pipe, 3' long, with 3/8" copper pipes for refrigerant running axially along it ... and to have 4 of these 3' sections connected side by side with elbows.

Flow rate will be about 5l/s.

Ambient atmospheric temp is around 0C and humidity is around 80%.

I like some opinion on whether this design will be successful in removing enough heat from the water before it exits the system.

Will it require an excessively large system?

All constructive comments are welcome!