During the last decade we have seen, in parallel with traditional DX systems, the constant expansion of new technologies with CO2 as the refrigerant and as the secondary coolant media. Supermarket systems are divided into two temperature levels, MT and LT:
- MT: display cabinets and cold rooms at +6 to 0 °C
- LT: display cabinets and cold rooms at -18 to -24 °C
Systems are designed to suit these two temperature levels. In northern Europe we have seen the progressive introduction of transcritical booster systems, using CO2 as the refrigerant, in both MT and LT. In other countries, hybrid systems are becoming a standard solution. In these systems, R134a is normally the refrigerant used in MT, and CO2, condensed via a cascade BPHE, is the refrigerant used in LT. Pumped systems using CO2 as the coolant media are used in hot countries, due to the cost savings in pipe sizing and the increased efficiency. In emerging markets, supermarket systems are normally manufactured using brine chillers, with the glycol circulation ensured via a centrifugal pump.
The B8T enables efficient heat exchange in applications with small flows and extreme demands for compactness. Easy to install and use, the product is small yet versatile, which makes it a good choice for a variety of one-phase and two-phase applications in many industries.
With pressure requirements for transcritical CO2 applications touching 140 bar, the B18 is the natural choice. The B18 is optimized for high heat pump capacities (up to 150 kW as a gas cooler and up to 60 kW as an evaporator). The compact yet lightweight B18 is an excellent choice for cold chain…
The B200T is a condenser operating across a wide capacity interval. The product is perfect for solutions that require compactness and efficiency, and is an effective alternative to shell-and-tube exchangers.
The B400T has been developed to work extremely effectively at high capacities, enabling compact solutions in demanding chiller applications.