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October 2005 49 World's Largest Plate Heat Exchanger The T50 gasketed plate heat exchang- er from Alfa Laval is reportedly the world's largest of its kind for marine and land-based applications. The T50 is designed to meet the demands of mod- ern engines for increasingly larger ves- sels and industrial plants. Cooling large engines at reasonable costs requires sufficiently large flow rates at low velocities and with minimal pressure loss. The T50 plate heat exchanger uses available pump pressure for heat transfer while reducing the pres- sure losses in ports and connections, contributing to savings in terms of capi- tal expenditures and operating costs. The T50 has a 500 mm port to ensure that its flow rate is as large as possible. To provide the best capacity, it also has a large heat transfer surface area (approximately 3.5 sq. m. per plate). However, although the T50 is one of the world's largest plate heat exchanger, it is also the world's most compact solution for cooling large engines and therefore occupies less space than other solutions. This translates into savings in installa- tion costs since fewer pumps are required and in operating costs since fewer exchangers are required to heat the same volume of media. The T50 has a new plate system that is designed to improve heat exchanger per- formance for large cooling require- ments. The system enables three basic plates (low-theta, medium-theta and high-theta) to be combined in five dif- ferent channel arrangements. This allows heat exchanger design to be opti- mized to specific temperature programs. Circle 14 on Reader Service Card NME Cranes for Coast Guard Vessels Norwegian Maritime Equipments (NME) will supply 10 marine cranes for work on the construction of five new coastguard vessels - the last one set to be completed by the end of 2006. The first to roll off the production line could hit the water before the end of the year. All the boats will eventually sail off the coast of Norway. The order was received from Sczecin Ship Repair Yard Gryfia SA in Poland, which is building the vessels for Remoy Management AS and Remoy Shipping AS. The cranes have lifting capacities of 1.3 tons at 32 ft. and 2.8 tons at 16 ft. Circle 16 on Reader Service Card Circle 222 on Reader Service Card Circle 255 on Reader Service Card MR OCTOBER 2005 #7 (49-56).qxd 10/3/2005 2:48 PM Page 49
