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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

for a large frozen

storage room, 60-70 watt/m

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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Summary of content (2 pages)

PAGE 1
Cold Room Calculation App Alfa Laval Cold Room Calculator for Apple & Android 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.
PAGE 2
Functionality description  Start In the start screen (1) the interface language can be selected. By default this is the language that has been selected for your own smartphone or tablet. At the moment the App is available in some 20 languages, including Arab, Chinese and Russian.  General The first calculating screen (2) is for general data. Cold room temperature, outside temperature, expected ventilation losses etc. are to be entered here.