Efficient and sustainable container refrigeration application using CO₂

Carrier has successfully developed and trialed a CO₂ refrigerant container unit. The challenge for the transport refrigeration industry is to create a system that meets the energy consumption levels of today’s efficient HFC machines. In order for CO₂ to work as a viable refrigerant today, where energy efficiency, cooling capacity, power consumption, and quick pull down are necessary starting points, components and systems that can better control capacity and temperature using CO₂ should be developed. To be successful, container refrigeration equipment manufacturers must work to combine the best of these components into a carefully designed system. The goal of these new systems should be to achieve a GWP equal to one, minimize environmental impact from materials used, and improve energy efficiency at the same time.