Wednesday, May 16, 2012
Dining @ Maryland

Energy and Water Conservation

  • Dining Services is installing advanced exhaust hood technology from Intelli-Hood to reduce heating, cooling and electricity usage with variable control exhaust hoods. With this technology, the average hood can reduce energy usage by roughly the equivalent of the annual electricity usage of 12 Maryland homes.
  • Dish machines have been replaced with energy efficient steam heated equipment that uses 30% less water. In addition, the steam used to heat the water is recycled. This saves approximately 80,000 gallons of water per month – roughly the water used by 26 Maryland residents.
  • An Opti Rinse technology dish-machine uses “large droplet” S-shaped rinse to reduce water consumption by more than 50% and energy usage by more than 50% compared to our current high efficiency dish machines.
  • All water-cooled refrigerator systems have been replaced with air cooled systems or closed loop cooling tower systems. This eliminates the annual use of 150,000 gallons of water in these refrigeration systems.
  • “Combi Ovens” have replaced gas convention ovens. These ovens are more efficient and also cook more quickly leading to greater energy savings.
  • The windows in South Campus Dining Hall were replaced with new energy-efficient insulated windows. The roof and ductwork in the Diner were insulated and inefficient air conditioning systems were replaced with energy efficient environmentally friendly systems. This will reduce heating and cooling energy use by 10-15%.
  • Lighting in production, storage and office areas is being switched to compact fluorescent bulbs.
  • All public restrooms and storage areas have lighting system motion detectors to turn lights off when the spaces are not in use.
  • Hallways have had the lighting levels reduced by 50 percent.

The Diner is undergoing a “Green Upgrade”

    • Lighting fixtures will be replaced with the most energy efficient lighting available.
      Occupancy sensors will be turn off lighting fixtures when spaces are not occupied.
      Doors will be upgraded to improve insulation
      Sinks and toilets will be replaced with reduced-water fixtures
      Ice machines will be fitted with two stage cooling units.
      Steam traps will be replaced to cut energy usage in heating and cooking
      Insulation blankets will be installed on hot water and air conditioning systems
      The air conditioner chiller will be replaced with the most energy efficient model available
      30% of the building’s hot water will be produced by roof mounted AET solar collectors
      Variable speed controls will be installed on air handlers and exhaust hoods
      Heating and cooling systems will be integrated into one control system reducing energy loads when specific spaces are not occupied
      Fryers and refrigerators will be replaced with the most energy efficient models currently available
      Funding for this Green Upgrade will come from cost savings generated by reducing the usage of water, electricity, gas and steam
  • When finished: