four-stroke engines
››› A3 electronic control units. The 3500C engine design features a 170mm bore and 215mm stroke.
The power station concept for the offshore vessel projects is said to create efficiencies between the control units, unit fuel injectors, instrumentation and displays, fostering a balanced power supply, fuel economy and low exhaust emissions at any load.
“In addition to providing innovative power,
the IMO Tier II and US EPA Tier 2-compliant DEP engines are an efficient, environmentally friendly solution,” says Yanko Yang, Caterpillar Marine Power Systems’ Asia Pacific Territory sales manager. “Customers who have selected DEP engines have noticed a significant increase in time-between-overhauls and improved fuel efficiencies.”
China-based Cat dealer Lei Shing Hong Machinery will provide engineering, project management and commissioning support to the Sinopacific yard during the construction of the vessels and in service. Further product support in worldwide deployment will come from 2,100 dealer locations in the Cat network. A package of four Cat 3516C DEP engine- driven gensets will form the power station of the multipurpose offshore construction/ supply vessel SV-310 under construction for New Orleans-based Harvey Gulf International at Eastern Shipyard. Each genset is rated for 2,250kW at 1,800 rpm, the engines incorporating CleanAIR after-treatment solutions for US EPA Tier 3 and Tier 4 emissions compliance as well as for meeting IMO Tier II requirements.
Cummins has extended its Quantum Series programme with a new small auxiliary engine, the 6.7-litre QSB7-DM high speed design. The marine version is based on an
“We were able to create a factory- supported, design-to-order package that will afford the vessel increased operational flexibility in highly-regulated waters,” says John Shock, Caterpillar Marine Power Systems’ sales manager. The 91m-long MPSV Harvey Deep Sea will reportedly be the first US-flagged deepwater construction/supply vessel delivered to the market, its operating arena including the Gulf of Mexico. The design and equipment specification will allow 100 tons to be handled for construction projects to depths of 3,000m and substantial amounts of liquid mud, cement, methanol and deck cargo to be delivered. Four PSV 3300 CD-class vessels ordered by a new Norwegian offshore support company, World Wide Supply, from Dutch builder Damen Shipyards will be powered by diesel- electric plant based on Cat 3512C and Cat C32-driven gensets. Twin electric propulsion lines with a combined rating of 4,600kW will drive a pair of nozzled azimuthing thrusters to deliver a speed of 13.7 knots. The 690V/60Hz generating package will comprise two Cat 3512C-based sets (each rated for 1,352kW at 1,800 rpm) and two Cat C32-based sets (each of 994kW at 1,800 rpm). In addition to providing propulsive power, the outfit will supply two 735kW bow thrusters. Emergency/harbour power supplies will be secured by a Cat C-09 diesel genset yielding 238kW at 1,800 rpm.
All the 80m-long/3,300 dwt platform supply vessels will be built to Lloyd’s Register class by Damen Shipyards’ Galati
Small genset drive from Cummins
engine successful in industrial and power generation applications since production started in 2007.
The first marine genset installation was Twin Cummins QSK60 engines power Zhong Guo Yu Zheng 34 I Marine Propulsion I February/March 2012
scheduled in late 2011, a radiator-cooled unit for Weeks Marine’s BT105 floating accommodation barge which will run continuously throughout a 12-month field test. Supporting dredging personnel, the barge will operate between Panama City and lower Texas in the Gulf of Mexico. QSB7-DM engines are available with prime power ratings from 98kW to 210kW for ship’s service and emergency gensets. All the ratings are IMO Tier II and EPA Tier 3 certified, while 50Hz ratings feature EU Stage IIIa non-road certification. Advanced combustion technology is exploited to reduce emissions in-cylinder without the need for exhaust gas after- treatment. An electronically-controlled common rail fuel system ensures a high injection pressure regardless of engine speed or load condition; faster load acceptance and lower noise and vibration are also secured. Single-loop, low temperature after- cooling eliminates the need for two keel coolers and reduces emissions. Operators ›››
www.mpropulsion.com
facility in Romania for deliveries in 2013 to World Wide Supply, which is owned by a group of Norwegian and international investors and industrial companies. The fleet will be operated by one of the main investors, the Norwegian offshore specialist Remoy Management.
A 47m-long offshore support vessel recently delivered by St Johns Ship Building of Florida is the largest in a 20-strong fleet comprising OSVs, tugs, barges and crewboats operated by Trinidad-based A R Singh Contractors in the Caribbean. The twin- screw Sea Strength is powered by a pair of Cat C32 engines, each rated for 625kW at 1,800 rpm and driving through Twin Disc reverse- reduction gearsets. • A diesel-electric repowering project benefiting the dinner cruise vessel Showboat Branson Belle was based on three Cat C32 DEP engines, each developing 910kW at 1,800 rpm. The 700-passenger vessel was due to return to cruising Table Rock Lake in Missouri in March this year. An improvement in the overall sustainability of the vessel’s operations was sought through the latest emissions technology. Caterpillar’s ACERT system applied to the C32 genset engines exploits an enhanced combustion process that reduces engine wear and minimises fuel consumption. In addition, a Cat ADEM electronic controller co-ordinates and improves fuel delivery, air supply and other engine functions to maximise overall performance and lower emissions.
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116 |
Page 117 |
Page 118 |
Page 119 |
Page 120 |
Page 121 |
Page 122 |
Page 123 |
Page 124 |
Page 125 |
Page 126 |
Page 127 |
Page 128 |
Page 129 |
Page 130 |
Page 131 |
Page 132