Page 56: of Maritime Reporter Magazine (October 1998)

Software Solutions: CAD/CAM/CAE power cables that must run from the switchboard to the forward group of units. Control and moni- toring data acquisition units are unique to each unit with only a twisted pair required for informa- tion transmittal to the machinery control room (MCR) and bridge.

Hence there is only one cable with ten twisted pairs running to the

MCR.

The port lift consists of units 48P201, 48P202, 52P101, AND 52P201, which are the MCR, elec- trical workshop, and cylinder oil and oily water separator machin- ery units. The starboard lift con- sists of units 39S201, 52S101, 52S201, and 52S202, which are the storeroom, workshop and lube oil conditioning units. Due to the con- figuration of the shell at frame 52 units 52S101 and 52P101 were modified by shortening two of the legs on each unit.

Once the engine, shafting, gen- erators, and Level 4 grand unit are , i* vx

We're everywhere you need us... all around the world.

No matter where in the world you transport petro- chemical products, MMC is never far away. In addition to the headquarters facility in the U.S.A., we have major manufacturing and marketing operations in the United

Kingdom and Japan. Plus reliable agents almost eveiywhere else you need them.

This is the sales and service network that stands behind all

MMC products - including C-L couplings, high-level alarm sys- tems, and the closed gauging and sampling system shown below. - W When installed in an MMC vapor-control valve, it forms a gas-tight system that keeps fumes from escaping and meets all environmental and safety regulations.

As with all MMC products, it is built to high standards of accuracy and durability.

And remember if you ever need help, we're £ I never far away. 56

Nothing but the best.

Inwood, New York 11096 U.S A

Phone: 1-800-645-7339 • Fax 1-516-371-3134

WEB: http://www.mmcintl.com • E-MAIL: [email protected]

Affiliated companies: MMC Europe, Ltd. (UK) and MMC Asia, Ltd. (Japan)

Circle 298 on Reader Service Card loaded out the three lifts are recon- nected and the connections to the engine and tanks are completed.

The resulting configuration allowed approximately a six-week compression of the schedule.

The parallel design develop- ment of the machinery units and primary structure and the result- ing parallel construction can be expected to further reduce the con- struction schedule.

With the assist of the

Intergraph's DesignReview, the piping runs were reviewed to sim- plify the tank connections and minimize the piping runs.

Prior to this review the fuel oil system had 28 tank connections with the necessary valves for oper- ation scattered through out the engine room.

The piping was rerun to locate the valves for operation as near to the purifiers as possible with a focus on improving the operation and minimizing the number of tank connection. The resulting configuration had 16 tank connec- tions and provided a significant improvement in operation.

Similar improvements were achieved with the other systems.

As a result of this rework the process for development of the dia- grams was modified as follows: • The system engineer devel- ops the diagram with all compo- nents for a subunit/unit that could be constructed as a subunit/unit interconnected with the appropri- ate piping. Inputs and outputs from these subunits/units are shown as bubbles with a letter des- ignation. The corresponding input/output bubbles on related subunits/units have the same let- ters. Each bubble is to have a flow rate and fluid identified. • Preliminary arrangement layouts are developed locating these subunits/units on the Level 4 units. • The CAD design team should connect the bubbles, begin- ning with the largest pipes in the most direct, rectilinear route pos- sible using pipe sizes correspond- ing to the flow rates vs. pipe sizes. • The CAD design team, a production planner and the system engineer review the piping runs on

DesignReview to verify piping sizes, producibility of the piping runs, and system requirements. • The CAD design team makes any corrections resulting from the review and the team reviews the product model

Maritime Reporter/Engineering News