The need to address climate change and regulatory measures such as the Kigali Amendment to the Montreal Protocol are driving the transition from commercial refrigeration to carbon dioxide. Just this year, the United States. The Environmental Protection Agency proposes to reduce HFC production by 85% between 2022 and 2037.
Although the industry is adopting CO2 as the natural refrigerant of choice, the CO2 system is not without its challenges, especially in areas with higher ambient temperatures (the so-called “CO2 equator”-the geographic limitation of CO2′s cost-effectiveness). Energy recovery equipment (such as ejector technology) has been integrated into some CO2 systems to meet this challenge, but there are still significant performance limitations in these hot environments. How can the commercial refrigeration industry deal with this challenge without going bankrupt?
Energy Recovery’s PX G1300 (PX G) energy recovery equipment is designed to break through this barrier and make CO2 cooling an economical choice anywhere, especially in high-temperature environments. For example, currently in the late development stage, rigorous tests in our laboratory have shown that PX G can increase the efficiency of standard CO2 systems by up to 50% at an ambient temperature of approximately 90 degrees Fahrenheit (32 degrees Celsius). With PX G, a cost-effective, next-generation CO2 system is possible even in hotter climates.
Those in the industry know that when the temperature rises, the pressure difference required to create the refrigeration cycle also increases. Ejector technology is limited to a differential pressure boost of approximately 200 PSI/14 bar, which limits its ability to operate at higher temperatures. The PX G performance of Energy Recovery is not limited by high temperature or high pressure. Therefore, systems using PX G are expected to exceed the performance of CO2 systems equipped with ejectors.
So how does it work? PX G does not simply throttle the pressure at the high-pressure valve, but collects and recovers pressure energy to reduce compressor work, thereby reducing power consumption. By reducing compressor work, PX G has the potential to extend equipment life while reducing energy requirements and the overall environmental impact of the system.
Energy Recovery’s trusted pressure exchanger (PX) technology is the culmination of three years of engineering and product development expertise, focusing on improving the efficiency of high-pressure fluid flow systems. Through our proprietary design, material science and precision manufacturing expertise, Energy Recovery has become a leader in the desalination industry, realizing from hot seawater desalination to seawater reverse osmosis by improving efficiency, reliability, and reducing operating costs and environmental impact Major technological transformation of desalination. With PX G, our goal is to bring the same revolution to refrigeration and refrigeration, and to provide a green solution for carbon dioxide refrigeration that is more reliable and more efficient than the previous best-in-class options.
For more information, please visit www.energyrecovery.com/refrigeration or send an email to refrigeration@energyrecovery.com.
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Post time: Jun-17-2021
