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.
But, with more and more regulatory focus on greenhouse gases, that comfort level with diesel systems may have run its course. And, backers of nitrogen systems say, proven alternatives are increasingly available for fleets to evaluate....More