A milestone in the number of Copeland scroll digital compressors shipped from St. Louis-based Emerson Climate Technologies Inc. is being celebrated. The company has shipped its 150,000th unit since 2002.
Emerson sent the compressor to the marine container industry
where it will refrigerate seagoing containers of fruits and vegetables.
Digital compressor technology provides precise temperature
and humidity control to maintain box temperatures to within ±0.5°F (±0.3°C).
Tight control is particularly critical for perishable products like seafood,
fruits and vegetables that travel in seagoing containers on vessels that encounter
The world’s largest producer and marketer of fresh fruits and
fresh vegetables, Dole Food Co. Inc., Westlake Village, Calif., in 2005
switched almost exclusively to the use of refrigerated container systems
equipped with Copeland scroll digital compressors. The units remove heat from
containers that are filled with bananas in the field, quickly pulling down the
temperature to the ideal level. The process results in about half the
traditional energy consumption.
Emerson estimates that use of its digital scroll compressors
in refrigerated containers helps the banana industry save more than $10 million
in fuel costs while it reduces shrinkage and spoilage by $500 million annually.
In addition, the compressors reduce carbon emissions related to banana
transportation by 15 percent.