Carrier Refrigeration

Efficiency | ContainerLINE May 2019 3 efficiency of their existing refrigeration units, if they are not already taking advantage of optional power-saving control software provided by Carrier Transicold." Saving Energy Saves Fuel Imagine the impact of reducing refrigeration unit power demand by half. For every kilowatt saved, fuel is conserved, significantly helping to blunt the impact of the anticipated spike in fuel prices. With power-saving software, available for most Carrier Transicold units, reductions in power consumption can range from 10 to 65 percent, depending on which method is used, the refrigeration system and the commodity being transported. "When using power-saving software, the energy savings can help the bottom line," Yeo said. "Even on the low end of savings, when multiplied over the hundreds or thousands of refrigerated containers in a fleet's inventory, the long-term energy and fuel savings can be significant." Power-saving software can also help a shipping line improve its sustainability profile. "Since fuel is burned to generate electricity, reduced power requirements translate into a proportionate reduction of greenhouse gas emissions from the ship," Yeo said. How Power-Saving Software Works Carrier Transicold's three software options include FuelWise ™ performance optimization software, and QUEST and QUEST II power-saving modes. All were developed in collaboration with shipping line customers seeking specific performance characteristics, according to Jim Taeckens, senior product manager, Global Container Refrigeration, Carrier Transicold. "Fundamentally all three options control supply air output by intelligently cycling the refrigeration unit compressor and fans," Taeckens explained. "The air temperature within the container will modulate slightly without compromising the cargo temperature for the commodities being carried." Degrees of Savings Of Carrier Transicold's options, FuelWise performance optimization is the most conservative approach, providing energy savings with the tightest temperature control. QUEST II is on the other end of the spectrum, delivering the greatest energy-saving potential, but allowing somewhat more temperature variability, while still protecting cargo. The degree of savings is dependent on a variety of factors, not the least of which is the refrigeration unit itself. Get an Efficiency Edge Shipping lines that want to push refrigeration unit efficiency to the max should consider the PrimeLINE ® unit with EDGE technology, which combines both software and hardware enhancements to achieve the lowest power consumption. (See spotlight page 6.)

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