CO2 Refrigeration

PX G1300™ for CO2 Refrigeration

Energy Recovery’s PX G1300 (PX G) energy recovery device is designed to enhance the operability, reliability, and environmental sustainability of commercial and industrial carbon dioxide (CO2) refrigeration systems.

A Big Leap in System Efficiency = More Savings

Carbon dioxide (CO2) is one of the most sustainable and safe natural refrigerants. But the cost of CO2 refrigeration systems has traditionally made it hard for retailers to make the switch from super-polluting hydrofluorocarbons (HFCs), especially in warmer climates.

The PX G1300 ™ (PX G) from Energy Recovery offers customers the ability to future-proof refrigeration operations at a lower cost. PX G can reduce the energy consumption and operating costs of CO2 refrigeration systems and increase CO2 refrigeration system efficiency, particularly in higher ambient temperatures. In fact, the warmer it gets, the better the PX G performs.

By recovering lost energy and lowering the electricity bill of CO2 systems, supermarkets will improve their bottom line while reducing their carbon footprint. The PX G works by expanding the refrigerant similar to a valve, but recovers the energy of expansion and provides compression. This reduces the load on the compressors and the overall energy consumption of the system.

PX G1300 Benefits for Refrigeration

– Increases system efficiency.
– Reduces energy consumption and operating costs.
– Reduces compressor workload.
– Easy operation and maintenance.

Global Regulation is Driving Adoption of CO2 Systems

Hydrofluorocarbon (HFC) refrigerants have been used in commercial and industrial refrigeration systems for years. Unfortunately, HFCs pose a significant threat to our climate, contributing thousands times more to global warming than CO2. The Kigali Amendment, an amendment to the Montreal Protocol, targets a significant reduction in HFC use and is driving the global transition to refrigerants with lower environmental impact. The European Union, the U.S. Environmental Protection Agency, and some U.S. states have followed suit with similar initiatives, some of which propose more aggressive transition timetables than the Kigali Amendment.

This regulation is expected to drive a surge of CO2 system installations; however, traditionally CO2 systems were costlier to operate than HFC systems, requiring higher pressures and more energy to achieve the same refrigeration results. CO2 system efficiency also steadily degrades as the ambient temperature rises, therefore limiting adoption of CO2 refrigeration in warmer climates. The PX G energy recovery device reduces the energy consumption associated with CO2 refrigeration systems in a broad range of operating conditions and climates to ensure grocers are compliant with upcoming regulations aimed at reducing global warming potential.

How the PX G1300 Works in a CO2 Refrigeration System

A typical Energy Recovery PX is energized by fluid flow and pressure transfer from a high-pressure fluid to a low-pressure fluid.  PX G handles both gas and liquid, which makes it ideal for CO2 refrigeration systems in order to lower energy consumption.  The PX G operates alongside the high-pressure valve of the refrigeration system. Instead of simply throttling the pressure energy at a high-pressure valve, the PX G harvests the energy to reduce compressor work and power requirements. Diminished compressor work saves energy and reduces compressor duty cycles, leading to lower maintenance and increased savings for the system operator.

Energy Recovery’s pressure exchanger (PX) is a globally trusted technology, with a long history of efficiency and operational reliability.  PX technology recycles otherwise wasted pressure energy within industrial systems, saving energy, reducing waste, and minimizing emissions. It can also handle a range of pressures, including pressures above and beyond what is needed for CO2 refrigeration systems.

A PX acts like a fluid piston, efficiently transferring energy between high-pressure and low-pressure liquid and/or gas through continuously rotating ducts. The PX has only one moving part, the rotor, which boosts reliability – the more moving parts in a mechanical system, the greater chance something could break.

PX G Energy Recovery Device for CO2 Refrigeration

Contact us today to find out how you can reduce costs and improve the sustainability of your CO2 refrigeration system.

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