Main characteristics AlfaBlue BX
- Finned coil
The coil design based on small diameter tubes and turbo aluminium fins provides excellent heat transfer at minimal refrigerant charge. Circuiting design is fully optimized to the thermodynamic properties of CO2. Available fin spacings: 2,1 and 1,8 mm (for 950 mm fan diameter). 2,5 mm available as optional.
K65 headers with stainless steel connection for easy on-site welding.
Frame construction provides high rigidity for protection against vibration and thermal expansion. Casing and frame made of corrosion resistant pre-galvanized steel, epoxy coated white RAL 9003 on both sides. Separated fan sections.
- Fan motors
High efficiency AC or EC fan motors, available in different fan diameters (800, 910, 950 & 1000 mm) and noise levels, power supply 400/50/3. Motors with external rotor, protection class IP54 according to DIN 40050. Integrated thermo contacts provide reliable protection against thermal overload.
For a full overview of all available options and additional technical specifications please refer to the product leaflet.
How it works
Alfa LU-VE finned coil air heat exchangers have been designed to achieve an optimized exchange of thermal energy between air and a refrigerant or fluid. The ‘heart’ of our air heat exchangers is the finned coil, built up from a circuit of interconnected tube serpentines and fins to increase the heat exchanging surface. Thanks to the combination of key design variables (coil materials, coil geometry, casing design, fan type), air units are very versatile heat exchangers with a great variety of applications in many industries. Alfa LU-VE supplies finned coil air heat exchanger products for a wide variety of applications.
Air-cooled gas condensers
CO2 gas coolers replace traditional air-cooled condensers in refrigerating systems that have been designed for the use of CO2 as a single refrigerant. Such installations are getting more and more widely used. In air-cooled gas coolers the hot, compressed CO2 gas flows through the gas cooler coil and is cooled down by the ambient air that is forced through the coil. Due to the thermodynamic properties of CO2, there is no phase change in the gas cooler. In CO2 refrigerant systems the refrigerant gas is not liquefied until the next system component - the expansion valve (see illustration above). Air-cooled gas coolers operate with considerably higher pressures than air-cooled condensers.