Against the backdrop of rising energy costs and demands from the federal government to reduce CO2 emissions, energy conservation and energy efficiency are becoming increasingly important. There is considerable potential to meet these demands in the fields of refrigeration, air conditioning, ventilation, and building services engineering.
Against the backdrop of rising energy costs and demands from the German government to reduce CO2 emissions, energy saving and energy efficiency are becoming increasingly important. There is considerable potential to fulfil these requirements in the fields of refrigeration, air conditioning and ventilation technology as well as in building services engineering.
As a recognised and independent test laboratory, we offer a wide range of tests for refrigeration, air conditioning and ventilation equipment and systems based on national and international standards and guidelines. Our test laboratory is accredited in accordance with DIN EN ISO/IEC 17025 .
Thanks to our modern, versatile testing technology in the newly built technical centre in Essen, we are able to carry out a wide range of different product tests.
Our test centre has been working for EUROVENT Certita Certification SAS (ECC) in Paris for more than 20 years. On behalf of this European certification organisation, we test the performance data of air conditioning technology devices. ECC relies on the technical expertise and decades of experience of the TÜV NORD test centre.
The EU Directive 2010/31/EU on the energy performance of buildings (Energy Performance of Buildings Directive, EPBD for short) was transposed into national law with the Energy Saving Act (EnEG) and the Energy Saving Ordinance (EnEV) based on it with the stricter new version of 2015. These regulations require that the energy requirements of devices must be documented. In the case of ventilation and air conditioning systems, economic operation is determined in particular by efficient air delivery (SFP value) and the efficiency of heat recovery (heat recovery coefficient η). For air conditioning units with heat-transferring refrigerants, the COP value and the EER value take centre stage. These values indicate how much thermal energy is obtained through the use of electrical energy.
Special design features are relevant for use in areas with specific hygiene requirements (e.g. hospitals, but also offices and other common rooms). We also test and confirm these as part of our tests. Based on the relevant standards DIN 1946-4 and VDI 6022-1, we test the suitability of appliances and appliance series for the purposes mentioned. For example, the materials and surfaces of the appliances must be designed in such a way that they prevent the adhesion of dirt and microbial growth and are easy to clean. The individual components such as filters, heaters, coolers, heat recovery, etc. also have to fulfil certain requirements in terms of materials, surface quality and other properties.
The tests are carried out in our laboratory in Essen and/or at your production site.
A ventilation and air conditioning system(HVACsystem) is used to supply air to rooms (from offices and commercial buildings to swimming pools). The air is treated ("conditioned", i.e. heated, cooled, humidified or dehumidified) by the air handling unit in such a way that it is subsequently perceived as comfortable by the user of the respective premises. At the same time, exhaust air contaminated withCO2 or other substances is removed from the rooms and either treated again (recirculation mode) or discharged from the building. In order to utilise the energy contained in the exhaust air and simultaneously supply fresh air in the latter case, the devices contain a heat recovery system. This serves to keep the energy in the building and still enable air exchange.
Air handling units are therefore a key component in achieving the Paris climate targets while at the same time providing indoor air that is perceived as comfortable by people. However, their energy efficiency and compliance with the comfort limits depend on the correct design and interaction of the installed components. At TÜV NORD, we test precisely these performance criteria by setting up the units in the laboratory, equipping them with measuring devices and testing them at specified operating points under realistic conditions.
Air conditioning systems, heat exchangers and air handling units
(2 test stands, each divided into two parts)
Further information TÜV NORD Systems