917- 10/13 - Defective Reefers - Worldwide
Five separate explosions relating to refrigerated container compressors were reported in 2011. See UK Club bulletins 792/793. Counterfeit refrigerants were reported to be the cause, which has led the Container Owners Association (COA) to develop a new global online database of refrigeration machinery repair companies.
Investigations into the 2011 incidents, which resulted in three deaths, concluded that the refrigeration machines had contained a gas other than the refrigerant R134a for which they were designed to operate on, which had created explosive gases inside the system.
After testing samples from over 10,000 machines, and in coordination with the UN Environment Program (UNEP) and refrigeration associations such as CRT, ASHRAE and AHRI, it is now known that counterfeit refrigerant was introduced in to world markets in 2010.
This introduction coincided with a sharp rise in the price of refrigerant R134a and wide availability of HCFC refrigerants at low prices due to their phase-out for use in newly manufactured plant under EU and Montreal Protocol regulations. The counterfeit gases are a mix of HCFCs and other refrigerants but also including Methyl Chloride (R40) which is thought to be a factor in the units that exploded.
COA members, who own the majority of the world’s fleet of 1.3 million refrigerated containers, are concerned that action must be taken to ensure counterfeit refrigerants are not used to service their equipment. With counterfeit refrigerants being sold in new, branded cylinders, it was recognised that only testing refrigerant bottles prior to them being used to service machinery could confirm their purity.
A survey of refrigerant gas testing by service companies around the world was carried out by the COA, in order to create the new online COA Directory of Global Reefer Service Facilities. Available to COA members and non members alike, the database of refrigeration machinery repair / service companies contains information on over 720 facilities around the world, showing which of these companies have responded to the COA survey with information on refrigerant gas testing at their facility.
“The COA database is a step forward in the process to assist owners and operators in keeping their machinery operating effectively and safely, using the refrigerant that the machinery was designed for,” says the COA. “Members of the COA and non members can access the directory from the COA website, free of charge, and find a suitable service provider to avoid the risk of counterfeit refrigerants being used.”
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