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Alfa Laval presented AC74 brazed plate heat exchangers

Alfa Laval presented AC74 brazed plate heat exchangers

Alfa Laval has continued a focus on more sustainable heating and cooling systems with the launch of the Alfa Laval AC74: a new generation of brazed plate heat exchangers. Engineered as a flexible solution for air conditioning and process cooling duties, the AC74 includes unique technologies developed to improve energy efficiency and enable the use of refrigerants with low global warming potential (GWP).

“At the same time, we have also noted that energy efficiency continues to be a factor of growing importance across a wide range of both industries and heating and cooling applications,” Ekström continues. “We thus designed the AC74 to help customers meet both of these demands – energy efficiency and new refrigerants – in the best possible way.”

“The AC74 generation combines a number of unique technologies that Alfa Laval has developed based on our long experience in these applications,” Ekström says. “This includes DynaStatic, a flexible distribution system that can be tailored to match the properties of the media in question. So ensuring a perfect fit for example, with low-GWP refrigerants.”

By ensuring ideal distribution for the media, DynaStatic further contributes to higher efficiency of the AC74 heat exchangers. AC74 also features a new channel plate that takes advantage of Alfa Laval’s FlexFlow, a patented asymmetrical plate design that enables more efficient thermal transfer through optimized pressure drop and increased turbulence.

“Another key feature is IceSafe, which involves a number of elements in our low temperature management and ensures controlled, non-destructive freezing when operating with sub-zero media” Ekström notes. “Additionally, one model in the product generation, the ACK74, is specifically optimized for use with R-32. The ACK74 features our proven PressureSecure design, providing for dependable operation at pressures up to 49 bar.”

Alfa Laval has primarily designed AC74 heat exchangers for use in air conditioning and process cooling applications, but the sustainable design offers new possibilities for a wide range of duties. AC74 models also cover a higher kilowatt range than similar heat exchangers in the past, from 50 kW up to 160 kW.

“This is really an impressive capacity range that will create new flexible options for our customers,” Ekström says. “The ability to cover a wider operating range using the same compact frame size will simplify pipework for system builders, saving time and money that will ultimately be passed on to the end-customer.”
Related tags: air conditioning
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