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Cold room calculation
Air cooler units can be found in most cooling and
freezing rooms. Air cooler capacities should perfectly
match with the specific conditions of each individual
cold room. For that reason most air cooler
manufacturers supply software to select the best air
cooler model for the application. However, prior to air
cooler selection a calculation must be made to
determine the expected heat load for the cold room.
Rules of thumb or accuracy?
For making cold room calculations refrigeration
installers can rely on experience based and widely used
‘rules of thumb’ : 15-20 watt/m
3
for a large frozen
storage room, 60-70 watt/m
3
for a fresh fruit cooling
room, etc. Convenient, quick, but not very accurate.
A more accurate method is a detailed cold room
calculation using refined calculation formulas in
combination with product data tables. This can be done
manually or using commercial cold room calculation
software. This is relatively time consuming, a computer
is required and in addition the software is not for free.
And if for instance the room door remains open a little
longer than planned, so much for calculation
accuracy…
Quick & easy
To offer the market an convenient intermediate solution,
a quick & easy cold room calculation module has been
added to the selection software for Alfa Laval Helpman
heat exchangers some years ago. This non-academic
software enabled customers to make quick and reliable
‘stand alone’ calculations for a cold/freezing rooms.
This approach turned out to be a hit and many
consultants and refrigeration installers have been using
this ‘easy access’ calculation method since.
Mobile App for free!
With mobile technology rapidly developing, Alfa Laval
decided to ‘translate’ the existing cold room calculation
software into a mobile App for smartphones and
tablets. This App is now available for free in both Apple
& Google app stores. The new Alfa Laval Cold Room
Calculator turned out to be a very easy-to-use tool, with
it’s functionality fully based on the previous computer
software. The App quickly calculates a reliable cooling
capacity for any cold or freezing room.
App name Alfa Laval Cold Room calculator
Platform Apple & Android
Search string Alfa Laval; Cold Room Calculator
Cold Room Calculation App
Alfa Laval Cold Room Calculator for Apple & Android
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