calculation errors

[Servicefrigo]

Hay
The primary data;
Fast freezer for mushrooms

500kg/6h in cartoon boxees 600 x 500 x300mm
T initial=4*C T final =-30*C
Enviroment temp 32*C constant
Insulation polyurethane thickness=120mm
I use 3 diferent programs for this calculation & i got 3 different
results 1 Q=15.10kw /-35*C
2 Q=18.59Kw/-35*C
3 Q=13,9Kw/-35*C
How about it ?
Regards

[chemi-cool]

How did you calculate it?

Chemi

[Servicefrigo]

Simple,I put the same data in all 3 programes.Why you ask ? .The result are not good ?.

[chemi-cool]

The differance is too big.

What programs did you use and what is the size of the room?

Chemi

[Servicefrigo]

Room size

Lenght=3m
weight=2m
height =3m
result 1 cooltool (demo version)
result 2 coldroom
result 3 Scelte