Air Temperature Variations Due to Different Roofs and Their Impact on Energy Consumption and Emissions: Mexicali University Campus Case Study

Roof surfaces on which air conditioning equipment is installed cause significant temperature increases around the condensers due to roof thermal properties, resulting in excess electrical energy consumption and greenhouse gas (GHG) emissions. An experiment quantify such excesses during summer was conducted at a university campus Mexicali, Mexico. The temperatures surface for three types of roofs were recorded. Temperatures (condenser inlet temperatures) used as input data priori estimate 5-ton A/C working over these different roofs. recorded by nearby meteorological station reference. results indicate differential up 4.81 °C, an electricity 5.55 kWh additional 3.9 kg CO2 emissions, representing 8.2% surplus differences 2.1% provoked microclimate.