Page 55: of Maritime Reporter Magazine (October 1999)

MAN B&W Holeby L28/32H

Dominates Niche

MAN B&W Holeby's L28/32H engine has steadily built a solid reputation in more than a decade on the market.

According to its manufacturers, the diesel genset has a commanding 69 per- cent market share in the 1-2 MW seg- ment for engines operating on heavy fuel oil (HFO). Launched in 1987 and first delivered in 1988, the company has worked to build the genset's reliability and hence popularity through a continu- ous development program.

The engine is built in two versions, the

H version from Holeby for genset appli- cations and the A version from MAN

B&W Alpha for propulsion applica- tions. Since its entrance into the marine market, there have been a total of 1,434 engines sold, including 1,265 H ver- sions (1,145 in-line, 120 V) and 169 A versions (114 in-line, 55 V). In addi- tion, the engine is built under license in

Korea, Poland and China.

Reliability = Repeat Business

The main factor contributing to the engine's success is its reliability and excellent performance. At the time of the engine's introduction, the recom- mended interval between major over- hauls was 12,000 hours. At the begin- ning of the 1990s, the standard interval was 16,000 hours. Today, many vessels are operating with intervals of 20,000 hours and longer.

In addition to excellent upfront engi- neering and manufacture, the engine has benefited from Holeby's continuous development design concept. The prod- uct is subject to constant improvement, meaning that even though the engine is today more than a decade old, it remains up-to-date. Holeby has focused on increased maintenance-friendly design and actions to prolong the interval between major overhauls and the life- time of components, a philosophy, which is designed to lead to a reduction of spare parts consumption.

In order to make the engine enhance- ments cost and time effective for the end-user, the company has taken great pains to ensure that many of the repairs be undertaken by crew members. An example of this is the Lambda con- troller, a simple system that ensures the injection of more air into the combus- tion chamber when major changes in load occur. The process not only speeds up the engine's reaction time, but also substantially reduces the amount of non-combusted fuel during load changes, leading to less smoke and

October, 1999 internal pollution, as well as reduced wear. The first versions of the Lambda controller were equipped with electronic control; now it has a simple mechanical control instead.

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Service Card

JACK-OF-ALL-TRADES.

The Lang Range is built to suit the varying needs of all types of marine galleys. • Blue and brown water vessels. • Cooktop arrangements: griddles, hot tops, french plates. • Bake and Roast or Convection Cooking.

To learn more about Lang's line of heavy- duty marine galley equipment, call: 1-800-882-6368 6500 Merrill Creek Parkway

Everett, WA 98203

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Level

No Mowing*

The Sea Switch Two was designed and patented for all tank applications. The Sea Switch Two offers a reliable solution for liquid level detection and control for cargo, ballast, and storage tanks, without any moving parts.

The Sea Switch Two uses a fully static system that is based on the propagation of an acoustic wave into a metallic rod. A piezo-electric sensing element produces a wave along the rod. As the liquid reaches the sensing element the oscilla- tion stops and the alarm is activated.

The Sea Switch Two sensor detects high, high- high, or low level in any liquid with an alarm output given by a dry contact or current loop change 6-18 mA. • Easy installation • Self-test built-in • Fully static system - no moving parts

ELECTRONIC MARINE

SYSTEMS. INC. 800 Ferndale Place

Rahway, NJ 07065

Call today for more information! 732.382.4344 732.388.5111 fax [email protected] e-mail http://www.emsmarcon.com

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Courtesy by van der Giessen-de Noord B.V. • Shortens the time to define ship's structures and arrangements. • Provides high quality output: Classification drawings,

Steel material estimates, Equipment lists, Weld lengths etc. • Reduces manhours by direct re-use of basic design data in other TRIBON applications. www.tribon.com

Phone: +46 40 103455 Email: [email protected] Fax: +46 40 978415

TRIBON M1 Basic Design

A New Tool for Efficient Basic Design of

Ship's Structures and Arrangements gggkU ffBFBVK'!in,mm — Ill—mim— «» atmMmm^.., .

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