The residential air conditioning systems market is expected to grow by 4.5% every year over the next few years. This will be fueled by consumers choosing more energy-efficient models. So manufacturers need to find innovative solutions to increase efficiency while maintaining the comfort that consumers demand from their system. And of course, they also want to reduce noise and costs.
At Saint-Gobain we are helping manufacturers meet the needs of this changing marketplace by collaborating on their specific requirements. The compressor is the heart of an air conditioner, and consumes 90% of the system's energy. That makes it the main target for efficiency improvements. A 1 to 3% gain in Coefficient of Performance will translate into significantly better compressor efficiency.
Traditionally, manufacturers have used metal bearings that require a regular injection of oil to achieve a permanent fluid film. However, when a system runs under variable speed the fluid film can collapse; also if the compressor is turn on or off, metal-to-metal friction occurs, reducing efficiency and component life. By using polytetrafluoroethylene (PTFE) lubricated NORGLIDE® Bearings, we eliminate the need for metal-to-metal contact, reducing wear to ensure a long life.