Active Control Systems

Sustainable Buildings Strategies:

Fig. B7 – Image of  Solar Hot Water System Fig. B9 – Image of Energy Recovery Wheel - Summer Conditions and Winter Conditions

Fig. B7 – Solar Hot Water System                                                                     Fig. B9 – Energy Recovery Wheel

Active systems require the use of technology and energy to heat and cool. The NIH has integrated these following design techniques into it’s building controls techniques and design;


  • Utilize renewable energy source
  • Solar Hot Water (Fig. B7)
  • Photovoltaic Arrays
  • Geothermal/Ground Source Heat Pump
  • Utilize chilled beam technology  (Fig. B8)
  • Energy recovery wheels/systems  (Fig. B9)
  • Energy efficient lighting to include automatic dimming controls, daylight sensors, occupancy sensors and provides manual lighting controls and appropriate glare controls
  • Use of LED lighting
  • Reducing the number of air changes in laboratories during unoccupied periods
  • Energy Star rated equipment​

Fig. B8 – Image of Chilled Beam and the temperaure change of air flow
Fig. B8 – Chilled Beam