Grafik: Hallenkühlung in vier Schritten: Frischluft zuführen, feuchte Luft abführen, Arbeitsplätze anströmen, mehrere Geräte kombinieren
Posted by GoodCooling Team

Hall Cooling in Austria: How to Cool Your Workshop and Warehouse

In halls, workshops and warehouses it quickly becomes uncomfortable in summer: large roof areas heat up, doors stand open and the heat builds up. Conventional air conditioning is rarely economical there, because the cooled air escapes and the spaces are large. Evaporative cooling can be a practical alternative if you take account of how it works.

Why halls are a special case

  • Large volumes: For halls of hundreds of square metres, air conditioning would be complex and expensive to run.
  • Open doors and air exchange: The very things that weaken an air conditioner help evaporative cooling, because the additional moisture can escape.
  • Workstations rather than the whole space: It is often enough to relieve areas with permanent workstations in a targeted way, instead of cooling the entire hall.

How hall cooling with evaporative air coolers works

Evaporative air coolers draw in warm air, pass it over a wet cooling pad and blow it out again cooled. We explain the basics in the article How does an evaporative air cooler work?. In a hall, two effects work together: the temperature of the air in the airflow falls, and the air movement strengthens the perceived cooling on the body.

The right placement

  1. Supply fresh air: Open a door or window on the windward side so that dry outside air flows in.
  2. Remove humid air: An opening on the opposite side or a roof fan lets the enriched air escape.
  3. Direct airflow at workstations: Aim the airflow at areas where people work permanently.
  4. Combine several appliances: In very large halls, several appliances in different places can make more sense than one on its own.
  5. Mind distances and obstacles: Shelving and machinery can block the airflow.

Which appliances are suitable?

Our models GoodCooling Y20 and Y30 are designed for larger areas. According to the data sheet, both offer a cooling area of 150 to 250 m² and a power consumption of 1.1 kW. The Y20 has a water tank of 300 litres, the Y30 of 130 litres. You will find all models for commercial and industrial use under Industry & Large Areas and Hospitality, Events & Workshops.

Limits you should know about

  • In muggy weather the cooling effect falls, see Evaporative air coolers and humidity.
  • Without air exchange, humidity in the hall rises. This can affect sensitive materials, paper or metal surfaces.
  • A fixed target temperature cannot be guaranteed.
  • Water consumption has to be taken into account. According to the data sheet, the Y30 needs 12 to 20 litres per hour.

What does it cost to run?

The Y30 data sheet gives around €1.65 of electricity for ten operating hours at full load (at 1.1 kW, calculation according to the manufacturer). Further examples are shown in our electricity cost comparison and the article on payback. You will find more application examples in the article Cooling industrial halls.

Frequently asked questions

How many appliances do I need for my hall?

That depends on the area, ceiling height, heat sources and whether whole areas or just workstations are to be cooled. We are happy to advise you, get in touch.

Can I cool a hall completely to a desired temperature?

No, that is not possible with evaporative cooling. It lowers the perceived temperature and provides relief at the workstation, but does not replace air conditioning to a target temperature.

Is this a legal requirement?

That depends on the activity. The new Austrian Heat Protection Ordinance (Hitzeschutzverordnung) mainly concerns work outdoors. We explain what this means for your business in the article Heat at the workplace.

Conclusion

For workshops and warehouses with good air exchange, evaporative air coolers are an economical way to relieve staff. What matters is correct placement and realistic expectations. A brief consultation is worthwhile before you decide.

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Further reading