Enhanced Hyundai Mipo tanker design enters service HMD’s standard chemical/product tanker designs were ordered with enhanced equipment for speed of turnaround.
Tanker Operator, November-December 2009, p.48-49
At the end of June, Claus-Peter Offen Tankschiffreederei (Offen Tankers) took delivery of the first of a series of eight 52,000 dwt MR chemical/product tankers built to IMO III standard - CPO Korea.
As in the previous series of eight handysize 36,000 dwt IMO II/III type chemical/product carriers, although based on a Hyundai Mipo standard design, Offen Tankers included several equipment upgrades. These were primarily designed to speed up load/ discharge times.
For example, the cargo and ballast pumps installed had higher capacities and two tank cleaning machines per cargo tank were installed. For faster discharge, the hydraulic power pack’s capacity was increased.
The inert gas system capacity was also increased and the cargo tanks were coated with a heavy phenolic epoxy, which Offen Tankers claimed offered better cargo resistance thus allowing a wider variety to be carried. A super stripping system was installed for optimum discharge and to ensure that less residues/slops were left in the cargo tanks again for ease of cleaning.
The first series were built to Lloyd’s Register’s Ice Class 1A and were fitted with bow thrusters, but the later series dispensed with ice class and with the bow thrusters.
Offen Tankers also opted for a fully certificated dual ECDIS system ahead of the IMO rules, thus eliminating the need for paper charts and chose a fully integrated software system for document control, planned maintenance and purchasing. Offen Tanker’s managing director Stephan Polomsky maintained that he was keen to “do away” with all the unnecessary paper work as far as possible with all functions integrated into one software system, which can be interrogated both on board and ashore.
As for the crews’ accommodation, this was also upgraded to a higher standard. For example, for crew comfort, the vessels have improved interiors, upgraded galleys plus a gym and sauna fitted. As a further enhancement to crew welfare, the communications system included individual
CPO Korea, the first of the larger series, was named at Ulsan on 25th May and was handed over to charterer ST Shipping and Trading, Glencore’s shipping arm, on 30th June. Three more sisters will join the fleet next year and the final four in 2011.
The preceding eight were built under a joint project with Broström France and are currently operating in Maersk Tanker’s Handytankers Pool. Maersk finalised the purchase of the Broström earlier this year.
The handysize orders, which kicked off Offen Tanker’s involvement in this particular sector, were the result of contract conversions as they were originally ordered as 1,800-teu containerships. By having roughly the same dimensions meant that they could be built in the same dock as the one originally planned
for the containerships without upsetting the yard’s building schedule.
Both series are powered by a six cylinder Hyundai-MAN type 6S50MC-C diesel engine producing 9,480 kW at 127 rev/min (maximum continuous rating), or 8,530 kW at 122.6 rev/min (normal continuous rating), giving a service speed of about 15.2 knots at the normal continuous rating. At this speed and rating, the heavy fuel oil consumption is around 34.6 tonnes per day.
As for the auxiliary machinery, the vessels were fitted with three Hyundai Himsen diesel generators rated at 730 kW each, plus a Cummins emergency generator rated at 120 kW. The complete engine room control system was supplied by Kongsberg.
Cargo is carried in 12 segregated tanks – six on each side of the vessel. Both cargo and water ballast pumps are of the submerged and hydraulically driven Framo type.
Each cargo tank was fitted with one set of pumps rated at 600 cu m per hour capacity each and two cleaning machines. In addition, each vessel is fitted with a further two sets of 300 cu m per hour capacity and another one of 75 cu m per hour. As for the water ballast pumps, each vessel was fitted with two sets of Framo pumps rated at 900 cu m per hour capacity.
The cargo tanks were coated with a heavy phenolic epoxy supplied by Sigma for the 36,000 dwt series and Jotun for the larger series. This type of coating was chosen for its resistance qualities enabling the vessels to lift a wide variety of cargoes.
Tank cleaning is carried out with the aid of ScanJet machines and the tanks have also been fitted with a super stripping system for optimum discharge by ensuring that less residues and slops remain in the tank, which also increases the efficiency of the cleaning operation.
Increased inert gas functions were provided by Aalborg Smit generators. The tank level gauging equipment was supplied by Emerson Process Management, while the fixed gas detection system was supplied by Consilium who were also responsible for the fire detection system.
Aalborg supplied the auxiliary boiler and exhaust gas economiser. The boiler’s capacity is 18,000 kg per hour. The oily bilge separator was supplied by Georim Engineering, the sewage treatment plant by Jonghap Machinery and the incinerator by Hyundai Atlas.
Furuno supplied the navigation and communications equipment. Here, Offen Tankers opted for a dual ECDIS system ahead of the IMO convention, which will allow the fitting of two ECDIS, to eliminate the use of paper charts. The communications suite includes the use of individual crew email on board.
Polomsky said that he was a champion of the paperless vessel and shoreside office, illustrated by the fact that the company has invested in Ulysses Systems’ Task Assistant integrated management software for document control, purchasing and planned maintenance, as well as taking the dual ECDIS route.
Elsewhere, DongNam Marine Crane (DMC) supplied the tankers’ hose handling cranes, while Rolls Royce supplied the steering gear and Pusnes was responsible for the deck machinery.