Innovation that boosts performance
Alfa Laval brazed plate heat exchangers (BHEs) feature the Equalancer system and Dualaced technology – patented innovations which ensure high heat transfer performance. There are numerous design options to choose from.
Alfa Laval R&D has developed innovative solutions for the refrigerant fluid distribution inside a BHE. These have been laboratory tested using HCFC and HFC refrigerants with excellent results.
Equalancer system “EQ”
The two phase flow coming into the evaporators is mixed by the patented Equalancer distribution system “EQ”, which stabilizes the flow and increases performance. Using the Equalancer it is possible to obtain a double mixing of refrigerant into two successive volumes. This ensures a more balanced distribution system through all the plate channels, reducing fluctuations in the super-heating effect. Pressed into the plate, the Equalancer system guarantees high quality and repeatability of plate design and performance. The Equalancer system does not have an adverse effect on the BHE operating as condenser since the pressure drop is negligible.
Dualaced technology “DQ”
The real dual circuit patented by Alfa Laval is a solution with diagonal flow. BHEs using Dualaced technology have two independent refrigerant circuits. The special design ensures that each refrigerant circuit is in contact with the entire water flow. The main advantage is that at partial load (only one compressor running) water cooling is uniform andperformance is maximized.
Why choose Alfa Laval Brazed plate heat exchangers? • Compact, durable designs with consistently high quality; ease of installation. • Extensive range of BHE models providing cooling capacities from 0.5 to 600 kW. • Equalancer system provides a substantial saving in heat transfer surface compared to BHEs with traditional distribution system. • Cost efficient: space savings due to the compact design of BHEs compared to shell-and-tube heat exchangers. • Rapid response to temperature changes due to small hold-up volume and lower refrigerant charge. • Optimized design for every duty with customized BHE configuration to customer’s own specifications. • All widely recognized pressure vessel codes available as standard. • Every BHE is pressure and leak tested before delivery, ensuring top quality products. • Alfa Laval offers first-class manufacturing facilities, global presence and high product availability. • Alfa Laval’s continuous investments in R&D ensure the most competitive solutions.
