Hi,
I am a mechanical engineering student and we are working with an African charity to use excess power from a mini hydro water turbine to build a refrigeration system for a remote african town.

I do not have much knowledge of refrigeration and i am finding it tricky to understand how i can calculate the volume i can refrigerate.
We are planning on building our refrigerator system underground, entry being from above. Somewhat simialar to a celler refrigeration system.

We can only use 70Kw during the night and therefore we are hoping to cool to fridge during the night and use insulation throughout the day to keep the contents cool. With entry to the fridge occuring only at night....

Any help regarding how i can calculate the volume we can cool would be amazing.

Thanks