Air Conditioning - Capacity of a Heat Exchanger (condenser and evaporator)

situation:

1. i have 2 pipes. the source is pipe A and i will connect it to pipe B. the diameter of Pipe varies and has a range, lets say around 1 in. pipe A can be larger than pipe B. what mechanism shall i i use in order to avoid leakage during the process? the fluid is a refrigirant and pressurized like in most air conditioners (window-type)

2. i have this evaporator and i want to test its capacity. do i need to have the complete aircon parts (condenser, compressor, expansion device, etc) or just a refrigirant tank, pump and an air source.?

3. if the test is done, what design shall i use to be sure that there is no refrigirant left in the evaporator and it goes back to the tank?

WOW! You have to be EPA certified to mess with refrigerant. Yes you will have to have evaporator, condenser, compressor,metering device, fans, accumulator.

If you where EPA you sure would not have to ask something like this.:rolleyes: :rolleyes:

this is just for school. i will not implement this. this is only a design in paper...

What school?
What class?
What grade, if any?
What exactly are you looking to design?

1.) Brazing with oxy/acetylene torch

2.) Capacity depends on air flow and many other factors.

3.) Freon Recovery Machine as required by Federal law.