Efficiency and air quality assurance of demand-controlled domestic ventilation systems - ensuring energy efficiency and air quality through quality assurance measures

Project background

Room ventilation systems ensure healthy indoor air and can also reduce ventilation heat losses when heat exchanger, they can also reduce ventilation heat losses. As with all mechanical systems, domestic ventilation systems must also be regularly maintenance in order to ensure technically and hygienically perfect operation.

Compared to systems in non-residential buildings, the functionality of residential ventilation systems is usually not regularly checked by expert personnel. The systems should therefore be planned and built to be to function as faultlessly as possible over the technical service life of 20 years. In recent years, the number of demand demand-controlled systems has been steadily increasing. In this case, the volume of air conveyed is adapted to the actual air requirement in the house.

A sensor for presence or air quality is required for this. The aim of demand control is to reduce the energy requirement for ventilation with the same or better air quality. However, this only works if the sensors are working correctly. In a worst case scenario, the sensor has a malfunction and the ventilation runs unnoticed for a long time at a high or low level. Little has been published on the robustness of demand-controlled ventilation systems. In the research project, the condition of ventilation systems in operation and, if necessary, determine optimization potentials.

Project objective

The Project objective is to investigate the condition of ventilation systems during operation and to identify any potential for optimization. A particular focus here is on the on the functioning of demand-controlled ventilation systems, whose efficiency and reliability are to be ensured by the correct operation of the sensors. The aim is to reduce the energy required for ventilation without compromising air quality and to ensure the robustness and longevity of the systems.

Project procedure

- Determination of the current status of residential ventilation systems in field studies: Identification of problem areas and optimization potential, particularly with regard to demand-controlled systems.

- Analysis of the influence of faults and sensor deviations: Investigating the effects on air quality and energy requirements.

- Creating a guide: developing guidelines for the planning, implementation and operation of residential ventilation systems.

- Developing and testing methods for automatic fault detection : using measurement data to identify faults or optimization potential in residential ventilation systems using statistical methods.

Innovation

The examination of domestic ventilation systems during their service life for functionality involves the application of current scientific and metrological methods. This enables a precise diagnosis of malfunctions and identify potential for improvement. A comprehensive examination of the functionality of domestic ventilation systems has not yet been carried out. This investigation helps to improve the operation and maintenance of such systems and further increase their increase their operational safety.

FREE OFFER

For our research project we are looking for residential ventilation systems on which we can carry out appropriate investigations. The advantage for the system operator is that the entire system can be free inspection of the entire system for functionality and hygiene. In the process the air volume flows of the system are checked and adjusted. In addition we prepare a report on the condition of the system and suggest optimization measures optimization measures if necessary.

If you are interested, please contact one of our project project employee or send us an e-mail to the following address: airflow@th-rosenheim.de