AIR
There are numerous pathways to provide eco-sustainable sources for district heating and cooling. Veolia describes four specific projects.
Chicago’s district cooling system has five interconnected plants providing cooling for 100 buildings totaling more than 45 million square feet of space. The system utilizes Ice Thermal Storage and has reduced peak energy demand for air conditioning by over 30 magawatts.
In a traditional model, heat from a power plant is used to heat and provide electricity to a district. The water used in that network can also be cooled with refrigerants to provide cooling and the heat recovered from that process fed into heating pipelines improving efficiency.
Outdoor air can be used to cool water for free! Saves not only 80% on energy, but reduces CO2 emissions by 80%.
District city heating using sea water and CO2 as the refrigerant …
CO2 heat pump systems are more than twice as efficient as other systems, which translates into a 45% savings…