Cold store

[shills33]

Hi, I am currently studing Refrigeration and was wondering what capacity would be required to reduce 20 tonnes of product from -12 C to -26C in 4 hours if the product specfic heat below freezing is 2.1 kJ/KgK? the cold store is 30,000m3.

Thanks

[taz24]

Hi, I am currently studing Refrigeration and was wondering what capacity would be required to reduce 20 tonnes of product from -12 C to -26C in 4 hours if the product specfic heat below freezing is 2.1 kJ/KgK? the cold store is 30,000m3.

Thanks

Would this be homework by chance?

You work it out then submit your findings and then maybe people will help you with your reasoning.

taz.

[shills33]

is there a site that could help with my calculations for this
Thanks

[Bones74]

Hi, I am currently studing Refrigeration and was wondering what capacity would be required to reduce 20 tonnes of product from -12 C to -26C in 4 hours if the product specfic heat below freezing is 2.1 kJ/KgK? the cold store is 30,000m3.

Thanks

Hi, It's in the modern refrigeration manual.
specific heat x weight x amount of heat you are trying to pull out of your product. That is the start then you need to calculate the time period and any heat loss. Doors, etc.