How much gas will be required......pleaseeee help

I am making deepfreezer need some help.
using evaporator, pipe 3/8 around 50 feet
compressor 1/2 hp
how to calculate (or any software to calculate)how much gas will be required for this machine while charging.
R134a

134a


.............................Liquid... Hot Gas
...............................Line.....Line (55°C)
.......................................................................-40°C.......-30°C......... -20°C.......-10°C...........0°C

Inches....................kg/m........gm/m...................gm/m.......gm/m.........gm/m.........gm/m........gm/m

3/8.......................0.0595.......2.2322.................0.1488.....0.1488........0.2976........0 .5953.......0.8929


I have it all in table form if you send me your email I will forward a copy to you (the formatting is all over the place but the original table is easy to use).


134a 3/8 pipe in liquid is 0.0595 kg/m
134a 3/8 pipe suction at -10 is 0.5953 gm/m

Regards

Rob

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Quote:

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Originally Posted by solankisagar

I am making deepfreezer need some help.
using evaporator, pipe 3/8 around 50 feet
compressor 1/2 hp
how to calculate (or any software to calculate)how much gas will be required for this machine while charging.
R134a

---

Just till your SH reaches the desired value of +/- 6 to 5K. As easy as that.

Dear Rob White,
May I request you to send me too a copy of the table. My e-mail ID is rayin123@gmail.com
With thanks and regards
Rayin