Page 35: of Maritime Reporter Magazine (August 15, 1981)

land dockyard in Saint John's and joined CN's marine group in

Moncton in 1975. He played a major role in the design of the new Straitway vessel currently under construction in Saint John.

An assistant general manager (technical) of CN Marine, he was responsible for new construction, major capital expenditure, engi- neering and administration of the company.

Mr. Riley joined Halifax In- dustries when the company was formed, and was responsible for the company's recent success in ship repair activities as well as implementing the company's 19.5- million Canadian dollar modern- ization and expansion program.

Newport News Awarded $8.4-Million Order

For Submarine Overhaul

Newport News Shipbuilding,

Newport News, Va., is being awarded an $8,449,200 cost plus fixed fee contract for preparatory overhaul of the fleet ballistic mis- sile submarine USS Francis Scott

Key (SSBN-657). The Naval Sea

Systems Command is the con- tracting activity. (N00024-81-C- 2063)

Transamerica Delaval Runs

Diesel On Liquid Coal —Report Available

A program to test the practi- cality of operating diesel engines on fuel derived from coal reached a landmark recently with the op- eration of a Transamerica De- laval test engine on pure coal liquid at full load. Announcement of the test was made by Clinton

S. Mathews, general manager of the Engine and Compressor Di- vision.

The Department of Energy awarded a $475,000 grant to

Transamerica Delaval, Oakland,

Calif., last year to find the best ways to overcome problems in- volved in burning coal liquid, called SRC-II, in large engines.

In the past, liquids derived from coal such as SRC-II could not be used in larger, medium- speed diesels because their igni- tion required higher tempera- tures and pressures than diesel engines could generate. On the cetane scale, which is used to measure fuel ignition properties, conventional diesel oil is rated from 40 to as high as 60, but

SRC-II is virtually zero, and can even have a negative number.

Using SRC-II in only one of the test engine's six cylinders to conserve the limited supply of coal liquid formulation available, the program is examining two ways of giving coal liquid the help it needs to burn in diesels.

The first test is an engine modi- fication involving a pilot injection system which spurts a small amount of diesel fuel into the combustion chamber, followed by the mainline introduction of SRC-

II. The normal heat of compres- sion in diesels ignites the diesel oil pilot fuel which, in turn, "blow-torches" the coal liquid with enough heat to fire it.

A second method being tested under a variety of conditions is to pre-mix the coal liquid and diesel oil, injecting the blend with preheated intake air into the com- bustion chamber with no modifi- cation to the engine. First a blend of 60 percent SRC-II and 40 per- cent diesel oil was used, running the engine at varying loads. Then, increasing proportions of the

SRC-II were used up to 100 per- cent.

Operating well at all blends, the engine made history by be- coming the first medium-speed diesel to operate on pure coal liq- uid, at full load.

A full report on the diesel-coal liquid test program is being pre- pared for publication by Trans- america Delaval and will be avail- able this fall. To reserve your free copy,

Write 52 on Reader Service Card

Three dry docks to serve you. Modern big-ship yard to back them up. Around the clock service. But, above all, a salty crew of ship doctors ready to tackle any operation be it passing drill platform bound south; repairs to barges loaded with building modules for the North

Slope; or working ships and ferries.

Challenge us! Let us quote on your job.

SHIPBUILDING AND

CONSTRUCTION COMPANY 2929 16th AVE. S.W., SEATTLE, WASH. 98134

PHONE 206-292-5656 • CABLE L0CKSHIP 3 floating drydocks to 18,000 tons

Shipways to 100 x 700 feet • Piers to 1,100 feet

GEMS Level Switches for

Shipboard Service.

Where high reliability is required for monitoring liquid levels and signaling alarms.

There's a GEMS switch to meet all types of marine liquid level applications...to monitor and control levels, signal alarms, and to provide oil/water interface. Ideal for use with diesel engine fuel tanks, lube oil reservoirs, ballast, bilge, or oil sump tanks or for other common shipboard uses. =0= =Jt

A > 58000 Series

Single or Multi-Level

Switches.

Custom-made switches, using standard components, are supplied with various mounting methods, lengths, floats, materials, etc. to suit the application. ft

LS-35565 (brass)/

LS-56060 (stainless steel) Externally

Mounted Models.

For use where access to inside of tanks is limited, such as on lube oil or fuel day tanks. Custom-length housings. Provide ease of maintenance and tank cleaning.

LS-270 Model with Protective

Shielding for

Turbulent In-Tank

Conditions.

Small and com- pact, unit side- mounts in tank.

Ideal for low level bilge or sump tanks, and oil/ water interface.

With Intrinsic Safety.

Zener Barrier Safe-Pak relays, FM approved, from

GEMS provide intrinsically safe operation when interfacing level switches with your AC or DC loads.

European Economic Council represented.

For application information, call toll-free (800) 321-6070.

GEMS SENSORS DIVISION

Plainvilie, Connecticut 06062, U.S.A.

Telephone: (203) 677-1311; Telex: 99306 5j|p Transamerica 111 Delaval

August 15, 1981 Write 241 on Reader Service Card Write 3551 on Reader Service Card 41