Modern refrigeration and air conditioning (HVAC-R) technology is currently undergoing a massive shift, moving away from simple "cooling" toward intelligent, sustainable climate management. Improving these systems isn't just about comfort; it’s a critical response to global energy demands and environmental goals. 1. The Shift to Natural Refrigerants
The shift toward (R-290 propane, R-600a isobutane, and R-744 CO2) is arguably the single most important improvement. These gases have near-zero Global Warming Potential (GWP). For example, R-290 has a GWP of 3, compared to R-410A’s GWP of 2,088. refrigeration and air conditioning technology better
The development of mechanical refrigeration began in the 19th century. In 1805, Oliver Evans, an American inventor, designed a vapor-compression refrigeration machine that used vapor instead of liquid to cool. However, it was Jacob Perkins, an American inventor, who built the first practical refrigeration machine in 1834. Perkins' machine used a compressor to compress air, which then expanded through a valve to cool a surrounding container. The Shift to Natural Refrigerants The shift toward