HVAC Laboratory

The Research group of Heating Ventilating and Air-Conditioning for Buildings focuses on systems solutions for ventilation, heating, cooling and control technology. The vision is to provide energy efficient solutions for improving atmospheric climate and thermal conditions in buildings. Experimental studies focus on sensors, chilled beams, phase change material (PCM), heat exchanger, HVAC control systems, filters and ventilation systems.

Research areas are:
- Energy efficient ventilation, heating and cooling in buildings
- Thermal conditions in buildings
- Air cleaning and filtration
- Control systems
- Communication between indoor climate systems and grids

Experimental tests are often performed on test rigs. The experimental rigs are designed and constructed to allow investigations of real heating, cooling and ventilation components. In addition to the experimental tests in the laboratory environment, experiments are also performed in field.


- Near room temperature heating and cooling systems
- Near room temperature district heating systems

EQUIPMENT:
Instruments for field and laboratory measurements including:
- Two photo acoustic sensors for measurements of gases with specific absorption of infrared radiation including CO2, CO, N2O, H2O, CH2O and a sum of organic compounds with C-H bonds including methane and toluene. One type Innova and one type Bruel and Kjaer.
- Two optical particle counters for measuring particle number concentrations I the size range 0,3 - 25 µm type Lasat.
- Two ultrafine particle counters type P-track.
- Pumps, flowmeters etc. for air sampling on sampling material for subsequent chemical analysis (type Gilair).
- Instrument for measurement of air velocity, air quality, thermal conditions and air pressure type Testo 480.
- One instrument for precise thermal comfort measurements and logging including surface temperature, operative temperature and air velocity type Dantec ComfortSense.