Sustainable ventilation and air-conditioning systems are ventilation and air-conditioning systems that regulate the indoor climate permanently and minimize the environmental impact. They treat the outside air in the ventilation unit and thus ensure a pleasant indoor climate by eliminating humidity and unpleasant or harmful odors. This is particularly important in rooms where many people are present.

Why air handling units?

In principle, ventilation and air-conditioning systems are constructed in the same way in all areas of application. Its center is the RLT system. There, the outside air drawn in is cleaned, heated, cooled or dehumidified as required. The air flows from the central unit into the ducts. This ensures that all connected rooms are supplied with properly conditioned air. At the same time, exhaust fans extract the stale room air from the work area and return it either to the outside or as recirculated air to the ventilation center, so that the cycle starts all over again.

Ventilation and air conditioning systems are often crucial for a healthy and comfortable indoor climate. You should always pay attention to the energy efficiency of the system: Savings of 20-25% are often possible in the industrial and service sectors.

It is best to seek advice from an energy efficiency expert. An energy inspection helps you to save energy and operating costs. Are you interested in a new HVAC system? You then add a life cycle cost calculation to your offer. This allows you to see which system has proven itself best over the years.

Volkswagen relies on the EC+ concept from Danfoss and Novenco to ventilate one of the largest assembly halls at its Navarra plant. The “EC+” stands for the intelligent interaction of optimally selected system components: frequency inverter, motor and fan. The new HVAC system at the Volkswagen plant offers maximum energy and cost efficiency. This is because electric drive technology with optimum speed settings is a key technology for increasing the energy efficiency of fans and pumps.

In the first year, the six new air handling units saved a total of 747,429 kWh of electricity, 350 tons of CO2 and 199,115 euros in electricity costs compared to the previous ventilation system. This calculation is based on an energy price of 26.64 cents/kWh. Further basic assumptions for the calculation are a CO2 emission factor of 468 g/kWh and 8,760 annual operating hours. In industries, air conditioning and building technology solutions are an important factor for an efficient, energy-saving overall system.

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