Inert Gas Generator
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- Wartsila Delivers Combination Tanker xTavi' To Neste Oy Maritime Reporter, Feb 15, 1985 #42
The Turku shipyard of Oy Wartsila Ab recently completed the 19,999-dwt crude oil/chemical/ products tanker Tavi (shown above), first of two ordered by Neste Oy, the Finnish national oil company.
The vessel was delivered less than 14 months after keel-laying.
The Tavi is built to Lloyd's Register of Shipping classification +100 Al, Chemical Tanker, +LMC, UMS, IGS, Ice Class 1A. She is an IMO type II/III chemical tanker for worldwide trading of crude oil, oil products, and type II/III chemicals including benzene, styrene nonomer, caustic soda, caustic potaska, molasses, urea, white spirits, solvents, and alcohol. The cargo list comprises 72 different chemicals most widely transported by sea.
The tanker has an overall length of about 528 feet, beam of 76 feet, depth to upper deck of 46 Vi feet, and design draft of 33 feet. Propulsion is provided by a Wartsila/Pielstick 6PC4.2L-570 diesel engine coupled through a reduction gear to a KaMeWa controllable-pitch propeller.
The engine has a maximum continuous output of 9,776 bhp at 400 rpm. The ship is also fitted with controllable-pitch bow thruster driven by a 1,000-kw electric motor.
Three Wartsila-Vasa 6R22HF auxiliary diesels are direct-coupled u> Stromberg 935-kva alternators.
Main and auxiliary engines, boilers, and inert gas generator are all able to run with one kind of fuel on board—3,500 sec Redwood at 100 F.
The hull is divided, by two longitudinal and 11 transverse bulkheads, into 10 center tanks and eight side tanks for cargo, six side tanks for water ballast, and two slop tanks. Transverse bulkheads are stiffened by corrugating; longitudinal bulkheads are smooth in the center tanks with stiffeners in the side tanks. Center tanks are coated with pure epoxy; cargo side tanks are coated with zinc silicate.
Each cargo tank is fitted with a Thune Eureka deepwell pump. For cargo heating, 18 Sunrod heaters are installed on the main deck. One Maritime Protection inert gas generator is installed in a deckhouse aft. The generator has a capacity of 3,300 cubic meters per hour with a maximum pressure of 0.2 bar.
Despite being a ship less than 150 meters (492 feet) and of less than 20,000 dwt, the design of the Tavi incorporates some of the more severe requirements applicable to larger vessels. These include damage stability, segregated ballast water tanks, crude oil washing, and the inert gas system.
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- Crude/Chemical/Products Tanker Delivered By Wartsila's Turku Yard Maritime Reporter, Oct 15, 1984 #30
.6 feet, and draft of 33.2 feet. Total cargo tank capacity (100% full) is 26,644 cubic meters. Main engines, auxiliary engines, boilers, and inert gas generator are all designed to run from start to stop on one grade of fuel oil—3,500 seconds Redwood at 100 F. The Wartsila/Pielstick 6PC4.21- 570
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- Ballast Water Tech: N.E.I. Maritime Reporter, Feb 2013 #44
, and does not require changing ballast pumps due to flow restrictions. VOS leverages a highly efficient Stripping Gas Generator (similar to an Inert Gas Generator) to produce a very low oxygen gas (Stripping Gas). This gas is introduced to the ballast water via a Venturi Injector (VI). The VI generates
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- Great Ships of 2014: Gas Star - 84,000 CBM LPG Carrier Maritime Reporter, Dec 2014 #54
three stage cargo compressors and motors are located on main deck in enclosed deck house. One cargo heater (combined with vapourizer) and one inert gas generator are provided. Three 1,140 kW diesel generators, one auxiliary boiler (3,000 kg/h), one exhaust gas economizer (1,500 kg/h) for the main engine
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- Liquefied Gas Minicarrier Delivered By Moss Verft Maritime Reporter, Apr 1981 #23
compressors able to carry two cooled cargoes simultaneously. A combined inert gas/incinerator plant is installed in the engine room. The inert gas generator has a capacity of 500 cubic meters of nitrogen per hour. Both liquid and solid wastes can be burned in the incinerator. This combined plant
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- First O f Five Parcel Tankers Delivered To Stolt By D a e w oo Maritime Reporter, Apr 1986 #11
features add to the versatility of these parcel tankers. The air dehumidification plant for moisture control, the nitrogen storage plant and inert gas generator, availability of cargo heating by thermal oil, hot water or steam (up to 230 F in certain tanks), and the Skarpenord computerized Cargo- master
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- Moss Rosenberg Delivers First Of Three Chemical/Gas Carriers For Norwegian Owners Maritime Reporter, Oct 15, 1981 #12
radar sets with anticollision devices, gyro equipment, echosounder, satellite navigator, etc. A gas-detection system and a 900 Nm3/hr combined inert gas generator/incinerator have been installed. Both are designed and manufactured by Moss Verft
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- OUTSTANDING OCEANGOING SHIPS OF 1984 Maritime Reporter, Dec 1984 #12
.6 feet, and draft of 33.2 feet. Total cargo tank capacity (100% full) is 26,644 cubic meters. Main engines, auxiliary engines, boilers, and inert gas generator are all designed to run from start to stop on one grade of fuel oil—3,500 seconds Redwood at 100 F. The Wartsila/Pielstick 6PC4.21- 570
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- M/V Ogden Dynachem Christened At Avondale Maritime Reporter, Aug 15, 1981 #44
equipment, automatic high-level shutdown filling valves and stringent material restrictions. The vessel's fuel-efficient, closed-loop control inert gas generator is a low velocity displacement system with a common distribution header and check valve isolation into each cargo segregation. Independent
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- Alfa Laval: New Test Facilities, New Technologies Maritime Reporter, May 2017 #66
pilot program, but guaranteeing the cargo’s safety and reliable availability was even more important: “The AFEM modification is part of the inert gas generator’s combustion control circuitry,” said Mart Blankert, Manager Customer Support, Inert Gas Systems at Alfa Laval. “A failed module could prevent
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- Practical Compliance With Latest USCG and IMCO REGULATIONS Maritime Reporter, Aug 1981 #72
require- ments of the regulations requires modifications to the system. An inert gas system directs flue gas from existing boilers (or from an inert gas generator) through a scrubber unit, blower, and pressure regulating valve to suitable distribution piping located on the upper deck. A deck water
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- GASTECH '84 Maritime Reporter, Oct 15, 1984 #18
the Low Countries. Visits include an inspection of the Wieringermeer compressor and blending station of N.V. Nederlandse Gasunie; a tour of the inert gas generator production and testing facilities of Smit Ovens Gas Generators (formerly Holec) at Nijmegen; and, crossing the Dutch frontier into Belgium
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April 2024 - Maritime Reporter and Engineering News page: 4Authors & Contributors MARITIME REPORTER AND ENGINEERING NEWS M A R I N E L I N K . C O M ISSN-0025-3448 USPS-016-750 No. 4 Vol. 86 Maritime Reporter/Engineering News (ISSN # 0025-3448) is published monthly Cooper Fischer Goldberg except for March, July, and October by Maritime Activity Reports, Inc.
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