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HHI and DNV GL take a fresh look at Grim’s Vane Wheel

   Rising fuel prices and IMO pressure to reduce the energy efficiency design index have renewed interest in energy saving devices (ESDs). Many ESD concepts date back to the 1970s, when the first oil crisis triggered worldwide research activities to make ships more fuel efficient. A joint industry project between Hyundai Heavy Industries (HHI) and DNV GL take a fresh look at Grim’s vane wheel. CFD analyses for Grim vane wheel behind ship In later decades, many interesting ideas were abandoned again, as low energy prices deflected the focus on building prices rather than fuel efficiency. “It is time to look at some of the great ideas of that time”, says Woo-Chan Seok, project manager at Hyundai Heavy Industries (HHI). “Especially Grim’s vane wheel has not received the attention it deserves.” This was the starting point of a joint industry project between HHI and DNV GL. Professor Otto Grim, director of the Hamburg Model Basin in the early 1970s, developed and patented the vane wheel, a freely rotating device located behind the propeller. The vane wheel consists of a turbine portion and a propeller portion. The main function of the vane wheel is to extract energy from the propeller slipstream ...

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HHI puts its fuel saving propeller attachment into service

  Hyundai Heavy Industries (HHI), announced its fuel saving propeller attachment, Hi-FIN, proves beneficial to shipowners and operators. After a year-long trial of the energy-saving device installed on a 162,000 m3 LNG carrier ordered from Maran Gas, HHI found that Hi-FIN can save up to 2.5 % of fuel in comparison with the same type of vessels without Hi-FIN. If the fuel saving ratio is calculated on the basis of an 8,600 TEU containership, the owners or operators of the containership can save about $750,000 per year or $19 million for 25 years, an estimated lifetime of the ship. The energy-saving device attached at the hub of the propeller generates countering swirls that offset the swirls generated by the propeller, and thus improves propulsion efficiency. HHI has won orders of Hi-FIN for over 30 ships to date, and the company expects more orders now that it can install the device on broader types of ships from LNG carriers to almost all types of ships including VLCC, LPG carriers and containerships. Source and Image Credit: HHIIn the outbreak, I was forthright with you propecia before and after has changed my being. It has become much more fun, and now I have ...

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MPA Singapore designates “Green Ship of the Year”

  Hyundai Samho Heavy Industries (HSHI), a shipbuilding affiliate of Hyundai Heavy Industries (HHI), announced that UASC Umm Qasr, a 9,000 TEU containership built by HSHI, has recently been designated “Green Ship of the Year” by the Maritime & Port Authority of Singapore. The containership, which measures 300 m in length, 24.8 m in height and 48.2 m in width, was delivered to Singapore-based Asiatic Lloyd on July 31, 2014 and is currently chartered to Dubai-based United Arab Shipping Company (UASC). The main features of the containership are an electronically-controlled main engine, a ballast water treatment system and AMP (Alternative Maritime Power) system. The main engine maximizes fuel efficiency and reduces noise, vibrations, and carbon emissions by automatically controlling fuel consumption depending on sailing speed and sea conditions. The ballast water treatment system installed on UASC Umm Qasr can purify seawater in its ballast tank by filtering and sterilizing bacteria and plankton. Moreover, the AMP system on the vessel enables it to utilize the shoreside electric power, thereby reducing harmful emissions while at berth. With proven capacity to build eco-friendly ships, Hyundai Samho Heavy Industries has been successfully meeting increased demand from shipping companies around the world for fuel-efficient, eco-friendly ...

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Dorian LPG takes delivery of the ECO VLGC "Corvette"

Dorian LPG Ltd. owner and operator of modern Very Large Gas Carriers ("VLGCs"), reported that on January 2nd it took delivery of the ECO VLGC "Corvette" from Hyundai Heavy Industries. "Corvette", Dorian's third newbuilding delivery, will initially trade in the spot market and is the first of 15 deliveries that the Company expects in 2015. Dorian LPG currently owns and operates six modern VLGCs and one pressurized LPG vessel. In addition, Dorian LPG has 16 ECO VLGC newbuildings under construction, worth USD 1.36 billion. Source and Image Credit: Dorian LPGIn the beginning, I was outspoken with you propecia before and after has changed my life. It has become much more fun, and now I have to run. Just as it is incredible to sit.

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