Near-zero emissions, much less noise, low maintenance. That’s the sales pitch behind liquid nitrogen (LN2)-based cooling systems for trucks and trailers. So what’s the catch? Unfamiliarity with LN2, mainly, and some reluctance on the part of temperature-controlled carriers to move away from tried-and-true diesel-powered compressors.
Cooling with nitrogen
“It was really cool technology. It was completely different than an engine mounted on the trailer making all these emissions, all this noise, just to cool what’s inside the box. It costs less and the maintenance on it is so much less than a reefer, so the true cost to own is absolutely less than a conventional reefer.” - Ross Froat, manager of engineering and IT for the Technology and Maintenance Council at ATA