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GEA REFRIGERATION TECHNOLOGY PROVIDES ENERGY-EFFICIENT SOLUTION

Friday, August 23, 2019 

GEA says that due to national and international laws as well as voluntary environmental protection measures, more and more environmentally friendly refrigerants are being used in the marine business, so it has put more than 100 years of its refrigeration experience into practice to develop a new, transcritical CO2 technology specifically for use on seagoing vessels.

GEA signed a contract last year with Carnival company P&O Cruises for its new transcritical CO2 refrigeration technology to be installed on board the 2,000-passenger Arcadia cruiseship, where it provides energy-efficient refrigeration for all the ship's food and beverage refrigeration systems. Further orders for its transcritical CO2 refrigeration technology have now been received by GEA for two new cruise ships to be built in China and for a Dutch fishing trawler, the second largest in the world.

In May 2019, GEA signed a contract for transcritical CO2 refrigeration technology with Shanghai Waigaoqiao Shipbuilding (SWS), China. SWS is a subsidiary of China State Shipbuilding Corp (CSSC), and  is constructing the first two Chinese-built cruise ships. They will be operated by Carnival's new Chinese subsidiary, with the first of the pair of 133,500 gt ships to be delivered in 2023.

"The cruise market is booming worldwide. In China alone, growth to 4.5 million Chinese cruise passengers is forecast by 2020. This will be the first newly built cruise ship to be equipped with this type of sustainable technology. This is a really important reference project and we believe it will lead to a major spin-off," said Marc Prinsen, GEA Head of Application Centre Utilities Marine.

Cooling systems are essential for every fishing vessel, particularly on board factory trawlers, which also have to comply with global environmental agreements. GEA signed a contract with UAB Atlantic High Sea Fishing Company, a subsidiary of GEA’s Dutch customer Parlevliet & van der Plas. GEA has equipped the FV Margiris with an NH3/CO2 cascade plant. The trawler is the second largest of its kind in the world. 

Prinsen said: "As GEA, we are once again one of the pioneers in this technology. We are convinced that with our transcritical CO2 technology we will win further orders and customers. In recent years, many investments have been made in fishing trawlers, especially in Russia. Companies are building fewer but larger vessels, and many are in a situation where they have to renew their vessels because they are reaching the end of their life cycle. These new trawlers must meet environmental standards. We would like to help with GEA solutions."

GEA says that environmentally friendly, CO2-based sustainable cooling systems are relatively new in the marine business as it is difficult to develop flexible CO2 cooling systems that can be safely installed in the confined and mobile environments of seagoing vessels, though such plants using CO2 as an alternative to chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are already in use in the retail sector.

The modular transcritical CO2 marine plants operate with multiple GEA Bock compressors, ideal for the high pressures of CO2 refrigeration plants. Redundancy is built into the system so that the system does not fail in the event of a fault with one or more compressors. GEA's solutions can be tailored to almost any available space on board and are designed to operate safely, robustly and reliably even in difficult weather conditions.

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