1.3.2 Multi Purpose Heavy Cargo Carrier
The multi purpose heavy cargo carrier “DA ZHONG” was completed and delivered to Da Zhong Maritime Inc. in June 1998 at Sakaide Shipyard of Kawasaki Heavy Industries Ltd. The vessel is designed to carry various cargoes such as heavy cargoes, plants, construction machinery, steel materials, general cargoes and containers, with high efficiency. The vessel has two 250t cranes, and is capable of handling a maximum of 500t cargo at a time.
The main propulsion is one set of two-stroke cycle slow speed diesel engine.
1.3.3 Foil Assisted Catamaran
The foil assisted catamaran “SEAMAX” was completed and delivered to Ishizaki Steamship Co. in May 1998 at Kanagawa Works in Hitachi Zosen Corporation. The vessel is the first ship of “SUPERJET-40” type which has a hybrid hull form utilize a combination of buoyancy of a catamaran and lift of hydrofoils. The main propulsion is two sets of water jet respectively driven by two sets of the high speed diesel engine (2,032kW per each engine) through one set of reduction gear unit.
1.3.4 Large Hydrographic Service Vessel
The large hydrographic service vessel “Shoyo” was completed and delivered to Japan Maritime Safety Agency in May 1998 at Tamano Works of Mitsui Engineering and Shipbuilding Co., Ltd. The vessel is applied the electric propulsion system in order to improve an accuracy of service. The main propulsion is two electric motors of thyrister system, which is coupled with the fixed pitch propeller respectively. The main electric generating engines are two high speed diesel engine 6ADD30V which are newly developed aiming at compactness and higher power, and are installed in the sound proof packages.
References
1) Maritime Technology and Safety Bureau, Ministry of Transport, Annual summary of the Issue of Ship Construction Permits 1997.
[Kazutoshi ETOKORO]
2. Diesel Engines
2.1 Trend in the World1)
According to the Annual Analysis by the magazine The Motor Ship, the total number of ships delivered was the same as in 1996 at 986 but the total deadweight dropped by 2,180,699 tonnes (5.7%) to 36,282,173. On the other hand, the total power of propulsion system increased by 6.0% to 11,262,980kW from 10,621,775kW in 1996. (Table 2.1-1)
The combined construction tonnage by Japan and Korea, whose tonnages are at the first and second position in the world, increased by about 3% to 76.56% of the world's deadweight from 73.31% in 1996, but the gap between both countries narrowed to 8.8% compared with some 13% in 1996.
The shipbuilding output in China at third position in the world exceeded two million DWT. As a result, the combined output of these Far East 3 countries rose to 82.26% of the world's deadweight from 77.73% in 1996. Though there are mainly only small positional change among other countries, it has important meaning that UK continues to diminish and the decision by Newport News to withdraw from commercial shipbuilding will have an effect.
Similarly, according to the statistics of the magazine of The Motor Ship, the result of the total manufacture of diesel engines in the world in 1997 are indicated in Tables 2.1-2 〜 4, and 1,086 engines were mounted on 979 ships. The total production in the world is 11,041,359kW, and increased by 8.1% compared with that of the previous year. The dominance of the slow-speed engines continues and they accounted for 79.76% of all installed power in 1997. This meant that all three designers showed an increase in their total output. In percentage terms Sulzer increased by some 3% while MAN B&W dropped by a similar amount. In the medium-speed diesel engines, Wartsila occupied 26.9% of the total 2,000,000kW. MAN B&W decreased slightly from 388,629kW in 1996 to 312,495kW.
In general. MAN B&W, Sulzer and Mitsubishi in low speed sector remain the top three, and Wartsila whose total output drastically increased from 297,808kW to 553,686kW holds fast the fourth position.
2.2 Domestic Trend by Statistics of Nippon Kaiji Kyokai
According to statistics of Nippon Kaiji Kyokai, 363 newly-built ships were registered with NK class in 1998, showing the decrease by about 5.7% compared with 385 ships in 1997. (Table 2.2-1).
Among the total newly-built ships, 359 are equipped with diesel engines, and the total output is 2,590,819kW (3,523,514PS), showing increase by 6.1% compared with 2,442,760kW (3,322,154PS) in 1997.
