Product Load Calculation

[boy]

When calculating a refrigeration heat load,is the product load final temp same with the required room temp?
Ex:Blast Freezer Room
Required Temp:-40C
Product Load :Meat Product
Do we compute the
specific heat of product load base on the required temp?
Any feedback from our refrigeration expert.:D

boy

[Refrigerologist]

If you were working out the product load for a blast freezer and you are taking the meat from chilled/warm to frozen you would need to factor in the specific heat load of the product for latent load. The amount of heat removal to change the state of a product is far higher than that for reducing its' temperature when it is above or below its' freezing point.

if you are in doubt consult some one who knows!

[icecube51]

you have to calculate;

*on what temperature you bring the goods in.
*howmany kilo or ton you bring in.
*howlong are the doors open,and do they have plastic flaps .
*do you bring the goods in manual or whit forklift.
*howmany men/women are inside ore moving in and out.
* wat is the outdoortemperatuur wile you bring the goods in.
*is the freezer situated indoors or outdoors.
*is there floor isolation or not.
* how thick are the walls.
*wat kind of lights are used. and howmany.
then you can start whit some calculations,and maby there gone be some more questions on how big do i calculate the evaporator(s),and wat is the best place to mount.

good luck,

Ice

[icecube51]

O forgot,
if you take the final room temp for the final goods temp,your wrong. :rolleyes:
there always have to be a higher room temp needed to end up whit final goods temp.

Ice :cool:

[abet_meneses]

agree,with you ice cube.