HVAC codes and standards: cooling and energy efficiency

摘要

Data from the 2012 Commercial Buildings Energy Consumption Survey (CBECS) shows that the United States consumes 6,963 trillion Btu of energy generated for commercial buildings. Figure 1 shows that 44% of commercial building energy use is for HVAC and refrigeration. National survey data shows approximately 50% of the HVAC energy is used for cooling, ventilation, and refrigeration purposes.