In support of the low-charge ammonia systems showcased at the IIAR (International Institute of Ammonia Refrigeration) 2015 Conference & Exhibition, a number of manufacturers showcased components like separators, heat exchangers, wireless temperature gauges and valve stations. Much of it is suited for both ammonia and carbon dioxide, since cascade NH3/CO2 systems are drawing increasing interest in the North American market. + PHOTOS
Alfa Laval has more focus on natural refrigerants, and we’re developing products with low-charge such as the U-Turn, said Alireza Rasti, market manager, industrial refrigeration, at the company’s IIAR booth. “We could see the market need for low charge.”
I’m not saying it’s a bad idea, just that there are still things to be worked out,” he said. “These small-charge systems are about 60 tons [of refrigeration capacity]. In our business we don’t start thinking about refrigeration until you get to 300 tons. That’s a radical shift there.”
The focus of the market is on safety and that’s where the valve station comes in,” said Carsten Dahlgaard, global marketing director, industrial refrigeration.