Page 7: of Maritime Reporter Magazine (December 1988)

high compression ratio and corre- spondingly adjusted valve timing for problem-free and trouble-free

HFO operation; consistently even exhaust gas temperature after tur- bine over a broad operating range ensures optimum utilization of waste heat.

MAN B&W's exhaust gas turbo- charger with a very high level of aggregate efficiency over the entire load range permits a part of the exhaust gas flow to be branched off and utilized in a turbo-compound system, thus raising the aggregate efficiency of the propulsion plant; resilient mounting of the engines— the rigid design makes it possible to arrange the resilient bearing ele- ments directly on the engine lands.

Low maintenance requirement thanks to an optimized mainte- nance concept: with only three dif- ferent hydraulic tools, all the main screw connections can be slackened and re-tightened; rocker arm covers can be opened without great physi- cal exertion and fix themselves in the open position; and the design and arrangement of the rocker arms makes for swift and simple removal of the exhaust valves.

According to MAN B&W, their new generation of medium-speed engines offer further reductions in fuel consumption rates (85% ECR):

L40/54—172 b/kWh, L48/60—169 g/kWh, and L58/64—167 g/kWh; lube oil consumption rates of less than 1 g/kWh; significant reduc- tions in pollutant emission levels; extensive utilization of various en- gine waste heats, resulting in a high aggregate efficiency of the propul- sion system; long wear component lifetime and thus a low spare parts requirement; a simple maintenance concept tailored to the practice of day-to-day engine operation ensures short maintenance and turnaround times, which in turn means high engine availability and reduced manning levels.

For more information and free lit- erature on MAN B&W engines,

Circle 16 on Reader Service Card

MAN B&W Holeby's CODAG GenSet

Is Said To Save Up To 50 Percent

In Electricity Production Costs

MAN B&W Holeby reports sav- ings of 50 percent or more in ship- board electricity production costs are possible from the CODAG (com- bined diesel and gas) GenSet system developed by company. The concept represents one of the most signifi- cant advances ever made in improv- ing the economy and operational flexibility of marine auxiliary power generation plants.

The system neatly blends a power turbine in a tandem arrangement with an auxiliary generating set driven by a heavy fuel-burning die- sel engine from Holeby's market- leading type 23 and 28 design port- folios. The incorporation of the company's patented Integrated

Charge Air System (ICS) allows the auxiliary diesel to operate contin- uously on heavy fuel at all loads from full power down to and includ- ing idling.

CODAG

GenSet with

Combination of Diesel and Gasturbine

CD

MAIM BBW

Diesel-Generator Type 6L28/32 ICS

Output 1260 bkW/1200 kWe

Contract With $4.6-Million

Potential Awarded Bender

For Dredge Overhaul

Bender Shipbuilding & Repair

Co., Inc., Mobile, Ala., was recently awarded a contract for the regular overhaul, repair and alteration of the dredge Wheeler, a 408-foot seagoing hopper dredge with a complement of 64 and onboard crew of 32, operated by the New Orleans district of the U.S. Army Corps of

Engineers.

Bender is expected to perform the work in 45 days, employing 150 workers. The base contract amount is approximately $2,500,000, with additional optional work totaling another $2,100,000.

Bender is a full-service shipyard in operation for 60 years. It builds, converts and repairs vessels for commercial and governmental own- ers and operators.

For free literature giving full de- tails on the facilities and capabili- ties of Bender Shipbuilding,

Circle 41 on Reader Service Card

Seacoast Electric Offers

Reprint Of Training Manual

Due to favorable response, Sea- coast Electric Supply Corporation of Passaic, N.J., has reprinted their

Training Manual, which the compa- ny says is the only complete infor- mation and reference guide in the shipboard cable and marine electri- cal equipment industry.

The Training Manual has been designed to further educate Sea- coast's staff and customers, and to give all a better understanding and working knowledge of the products which are worked with each day.

The Manual is particularly useful when used in conjunction with Sea- coast's catalog.

Seacoast also offers training semi- nars to customers, which can be held at Seacoast's locations or at customers' facilities. All the new shipboard cable specifications will be covered.

For further information and a free copy of the Training Manual from Seacoast Electric Supply,

Circle 60 on Reader Service Card

The power turbine is supplied with surplus exhaust gas bypassed from the main engine's turbocharg- er(s), and the ICS feeds charge air from the main engine to supplement the auxiliary engine turbocharger's effort.

It is the well-proven ICS which makes it possible for the "free of charge" energy of a turbocompound system to be exploited in a power turbine arranged to contribute the main drive for the CODAG GenSet.

The associated auxiliary diesel en- gine will normally run near the idling condition, only injecting a mi- nor driving force to the set sufficient to act as a speed governor control- ling the frequency of the electrical grid.

For additional information and free literature on MAN B&W Hole- by's CODAG GenSet,

Circle 14 on Reader Service Card

Remember.. .the Anti-Pollution

Regulations of 1969? Red Fox Marine

Sanitation Devices set the standard as the World Leader.

They Still Are. after 18 years of service.

BOD5 Requirements By-ProducU Cost Certification

Red Fox EXCEEDS Carbon Dioxide H2O Inexpensive True Type II

Physical Chemical DOES NOT MEET Explosive

Hydrogen Gas

Requires Large

Amounis of

Rectified Power

Actually Type 1

Macerator

Chlorinator

IMO, USCG, Dutch Bureau of Mines Certification. ^^ Jfr" Please call or write or telefax ^^^^tTGtCmr* C^/C for an impressive list of major

COMPANIES owners—too long to list.

P.O. Drawer 13810 New Iberia, LA 70562-3810

Ph. (318) 367-6126 Telefax (318) 367-0209

Circle 196 on Reader Service Card

December, 1988 11