propulsion
Tanker to benefit from ZF Marine portfolio Bangladesh’s Ananda Shipyard & Slipways has specified a complete propulsion system from ZF Marine Middle East, which incorporates three different ZF Marine product lines: gearboxes from the fast craft portfolio, fixed pitch propellers from the commercial vessel portfolio and controls from the leisure craft portfolio. The equipment will be installed on a twin-
screw 79.8m-long oil tanker designed by C S Marine of China for the Bangladesh Navy. The vessel will be powered by a pair of
Cummins QSK60-MHPI high speed engines. Each engine is rated for 1,492kW at 1,600 rpm and will drive a ZF FP 2400 fixed pitch propeller via a ZF type W7610 gearbox; ZF Marine’s Clear Command control system will supervise the propulsion plant. The vessel is classed by Bureau Veritas.
Hundested units propel sludge tankers Hundested Propeller of Denmark has supplied the first two of six propulsion units for New York City’s Department of Environmental Protection. Bollinger Shipyards is building three 3,964m3 vessels for the transportation of liquid sludge from wastewater treatment plants without dewatering capabilities. Each vessel is powered by two GE
engines producing 1826hp at 900 rpm. The Hundested Propeller scope of supply includes the design and manufacturing of the main propulsion consisting of gearboxes, shafts and controllable pitch (CP) propellers. Each vessel is equipped with two Hundested CPG120 gearboxes with 3.0:1 reductions. The gearboxes have electrically driven standby pumps. The propeller shafts are 8.1m in length. They are made for water-lubricated stern tubes and are running on Ni-Al-Bz liners. Phillyclad from ITW Polymer Technologies
protects the sandblasted surface between the liners. The four-bladed CP propellers are of the VP11S series with a diameter of 2,100mm. The blades have been designed with a moderate skew-back pattern and are installed in leak-proof grease-filled hubs. The remaining four units will be shipped at the end of 2011.
Royston adds automation engineering to its portfolio Diesel engine specialist Royston Limited has now extended its capabilities to include automation and control systems. The new area of activity follows a strengthening of its engineering support team with the recent appointment of Steve Roberts as
44 I Tanker Shipping & Trade I October/November 2011 reliable
a process control engineer. He is the first specialist with specific electronics training to be recruited by the company and he now enables Royston to support every aspect of its clients’ diesel engines with in-house expertise. Royston Limited is a leading specialist
in diesel engine technology and provides maintenance, repair and restoration services to clients in the marine and offshore industries throughout the world. In addition to its regular diesel engine support services, the company also manufactures the Engine monitoring system. This enables operators to remotely observe the fuel consumption of
every vessel in their fleet and to ensure that they are being operated in the most fuel- efficient and economical way.
MES targets Chinese market Exhaust gas cleaning system specialist Marine Exhaust Solutions has entered into a strategic partnership with COSCO subsidiary Nantong Ocean Ship Equipment to jointly develop and demonstrate its patented MES EcoSilencer marine seawater scrubbing system. The agreement paves the way for knowledge transfer between the companies. It also envisages them working jointly on the development of existing and new
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