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Sigma Awarded MSC Contract For 40 Bilge Oily Water Separators Sigma Treatment Systems, Inc. (Sigma) of Chester Springs, Pa., has received a contract from the U.S. Navy Military Sealift Com- mand (MSC) to supply 40 bilge oily water separators with bilge alarms. The contract also contains options for the purchase of 40 ad- ditional units. Delivery of the first 10 units will be made in May 1984, with additional groups of 10 units to be delivered at six-week intervals. The MSC oily water separators will be the standard Sigma Sl-8 OWS (8 GPM size). These USCG/ IMO-approved units are designed, manufactured and sold by Sigma around the world to commercial and government customers. Any approved bilge alarm can be used to monitor the Sl-OWS effluent discharge of less than 15 ppm. The bilge alarm selected for the MSC unit is the BA-200 Oilarm as sup- plied to Sigma by Biospherics, Inc. of Rockville, Md. Sigma Treatment Systems spe- cializes in shipboard pollution con- trol equipment which includes oily water separators, sewage treat- ment systems and solid waste han- dling equipment. Engineering and manufacturing are performed at the Chester Springs, Pa., facility, with sales and service representatives in the major marine localities of the world. Sigma president William F. Roberts said: "The MSC contract represents the first significant pro- duction order for this type of equipment, and we are pleased that Sigma was selected." He also stated that Sigma has plans to of- fer this "MSC Package" to com- mercial customers, who can bene- fit in price and product confidence from the MSC production. For free information on Sigma's "MSC Package" as well as litera- ture on Sigma's range of oily water separators, Circle 74 on Reader Service Card Cross section of the L 58/64 diesel engine. M.A.N.-B&W Diesel Introduces New Engine 64-Page Technical Report Available Hampton Roads SNAME Reports On Ship Production Committee M.A.N.-B&W Diesel has intro- duced their latest design, heavy fuel burning, four-stroke diesel en- gine, the L58/64, with a power rat- ing from 8,000 to 15,000 bhp. M.A.N.-B&W reports the most noteworthy characteristics of this engine are that, at its optimum rating, it has an efficiency of 50 percent at the engine shaft, and is designed for burning future resid- ual fuels up to 7,000 seconds Red- wood No. 1 at 100° F, with a min- imum of maintenance. The first engine is currently going through its final testing pro- gram and is expected to exceed its design objective, burning less than 0.27 lbs/bhp (metric), corrected for ISO conditions, at 85 percent of its economy power rating. In addition to a high operating efficiency, the engine also provides an excellent opportunity for high waste heat recovery with an ex- haust gas temperature downstream of the turbocharger of 660° F over a broad operating range. In a number of marine applications, this means that the "at sea" elec- trical load can be produced by the waste heat recovery system in- stead of operating an auxiliary engine. M.A.N.-B&W Diesel also pro- duces a full line of two-stroke and four-stroke diesel engines with ratings from 500 to over 56,000 hp. In addition to main engines for marine applications they offer heavy fuel burning auxiliary en- gine generator sets, complete pro- pulsion systems with their own de- sign of speed reducing gears and controllable-pitch propellers, sta- tionary power plants and cogener- ation packages. An eight-page color brochure and a 64-page technical report on the new L58/64 engine are now available. These contain detailed technical data including specifica- tion tables, ratings, performance data, test results, photos, and cross- section color drawings of the new engine and key components. For free copies, Circle 76 on Reader Service Card M.A.N.-B&W 3L 58/64 test engine with a cyl- inder output of 1,215 kw (1,650 hp) at a rated speed of 428 rpm. The Hampton Roads Section of The Society of Naval Architects and Marine Engineers met re- cently at the Fisherman's Wharf Restaurant in Hampton, Va. The meeting featured a paper by F. Baxter Barham Jr. titled "The SNAME Ship Production Commit- tee—An Overview." Section vice chairman Robert L. Kelly wel- comed Robert G. Mende, SNAME national secretary and executive director, to the meeting. Mr. Barham is program man- ager for the Ship Production Com- mittee Panel SP-4, Design/Produc- tion Integration, at Newport News Shipbuilding. He has represented NNS on a number of Navy and in- dustry task groups dealing with integrated logistic support. The presentation provided a brief history of the SPC and the Na- tional Shipbuilding Research Pro- gram, noting the growing need for technical input to the program, and showed how the SPC is chang- ing to meet evolving ship produc- tion research demands and oppor- tunities. Particular attention was focused on the design-production integration program. Mr. Barham, a member of SNAME since 1963, is a 1951 in- dustrial engineering graduate of Virginia Polytechnic Institute, and has been with Newport News Shipbuilding since 1953. Discussers of the paper in- cluded: Louis D. Chirillo of Todd Pacific Shipyards; Ellsworth L. Peterson of Peterson Builders; Edwin J. Petersen of Todd Pa- cific; and Robert L. Kelly of New- port News Shipbuilding. In attendance at recent SNAME Hampton Roads Section meeting were (L to R): Robert L. Kelly, vice chairman; Robert G. Mende, national secretary and executive director; F. Baxter Barham Jr., author; William C. Ward Jr., secretary-treasurer; and Samuel E. Bevins, Technical Programs Committee chairman. April 15, 1984 19
