Evaporator and Condenser

[A.Mortezania]

Hi guys, I have some questions regarding condensers and evaporators :

1 – Regarding condensers, I talked with someone about this. My friend told me we can divide condenser into 3 sections :
top "de-super-heater"
middle : "condenser"
bottom "sub-cooler"
For R22, Suppose that ambient temperature is 45C and humidity is 30% and our condenser has 150 m2 heat transfer area. I think when temp. of ambient is 45C even we increase heat transfer area of condenser form 150 m2 to even 500 m2 ! we can not sub-cool R22 and for sub-cooling we must use sub-cooler heat-exchanger (By expansion R22 form liquid line into heat-exchanger).
With these ambient situation [I told above] can we sub-cool R22 by increasing heat transfer area of condenser ?
If no why in different books mention bottom of condenser as sub-cooler ?


2 – Regarding evaporators, In different books I see that writer names end of evaporator as super-heater. But as you know at low temperature cold-rooms we must use accumulator to prevent liquid coming back to suction of compressor even we use proper expansion valve and proper heat transfer area at evaporator, By this all of companies use accumulator in below zero systems.
Twice I have a question, While in below zero systems we can not evaporate all of liquid of refrigerant why in different books and sources they show that end of evaporator as super-heater ?

Sincerely yours.