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Diesel Power Review—Sulzer (continued from page 37) tion of 117 grams per bhp hour for an RTA84 engine at 85-percent load, ISO-reference conditions. The exhaust energy available for con- ventional waste heat recovery is decreased slightly depending upon the individual rating. The overall result of the Efficiency Booster is additional fuel savings of up to 3 g/bhph. The very latest generation of BBC high-efficiency turbochar- gers, type VTR-4A, has ample spare capacity for meeting the design re- quirements of today's RTA en- gines. The Sulzer Efficiency Booster thus uses a concept devised by Brown Boveri to recover surplus exhaust gas energy and feed it di- rectly to the engine crankshaft through an intermediate trans- mission. The integral power take- off unique to the RTA design is ideal for this concept, allowing the compact Efficiency Booster unit simply to be flange-mounted di- rectly onto the engine. Delivery of RTA engines with Efficiency Booster systems de- pends upon the availability of the new VTR-4A turbochargers and the new power turbine modules from Brown Boveri and its licen- sees. Sulzer expects that the Booster will be available for RTA engines that are due for shop test- IF YOU ARE DEALING IN SHIPPING WE ARE A PART OF YOUR BUSINESS. CANTIERI NAVALI RIUNITI SHIPBUILDING SHIPCONVERSION SHIPREPAIRS • HEAD OFFICE: GENOA (Italy) via Cipro 11 Tel. 010/59951 • Tlx. 270168 • SHIPREPAIRING YARDS: Genoa "Le Grazie" • Tlx. 270645 Genoa "OARN" • Tlx. 270090 Genoa "MGN" • Tlx. 270370 Palermo • Tlx. 910041 • SHIPBUILDING YARDS: Riva TrigosoD La Spezia • Ancona • Palermo • PALERMO.. U.K. USA NORWAY GREECE GERMANY HOLLAND INDIA HONG KONG «MGN>
. Main Agents: U.K. NORWAY GREECE GERMANY Henry T. Meadows & Sons Ltd Tx 885688 Titlestad & Hauger - Tx 71715 Phoenix S A - Tx 212395 Wilhelm Schmidt - Tx 215278 INDIA : Argaind - Tx 6719 HONG KONG: Manners - Tx 73314 (r FinCAnTIERI LEASE OR SALE OCEAN BARGES Deck 180'to 400' Tank and/or Peck 230'to 400' Dump Scow D.W.T. 1600 L.T. Drydocks 1000 and 2000 T. UNITS Deck 150' and 180' Series Self-Unloading Aggregate D.W.T. 4000 S.T. Water Cranes 25,100 and 150 T. Floating Docks 420' x 58' with or without crane For additional information contact Tom Sherwood or Andy Canulette 3121 S.W. Moody Avenue Portland. Oregon 97201 Phone: 503-228-8691 Toll Free 1-800-547-9259 Telex 36-0503 • Cable Zidell ZIDELL MARINE GROUP ing from January 1985 onwards. The output range (mcr) of the RTA series runs from 3,720 bhp at 196 rpm for the 4-cylinder RTA34 to 54,000 bhp at 90 rpm for the 12- cylinder RTA84. For a free 26-page color bro- chure on the RTA engine series, circle the number above on the Reader Service Card in the back of this issue. TRANSAMERiCA DELAVAL Circle 38 on Reader Service Card Transamerica Delaval's Engine and Compressor Division in Oak- land, Calif., designs and manufac- tures the Enterprise R and RV medium-speed diesel engines, which have proved themselves in hundreds of thousands of operat- ing hours, powering vessels rang- ing from 1,000-foot Great Lakes ore carriers to offshore workboats. The R4 series comprises 6- and 8-cylinder in-line engines and V- form engines with 12, 16, or 20 cylinders. The bore is 17 inches and the stroke 21 inches (432 x 533 mm), and the output ranges up to 677 bhp per cylinder. The latest development in the Enterprise line of marine diesels is the R5. Operating at 514 rpm, the R5 produces 850 bhp per cyl- inder with a bmep of 275. Bore and stroke are the same as the R4. Through selective redevelopment and design advances in critical en- gine parts, the R5 has achieved, compared with the R4, a 40-per- cent increase in bhp per cylinder, 40 percent more bhp per square foot of installed space, and a 3.5- percent decrease in fuel con- sumption. The ability to burn heavy fuel oil reliably is paying off for a wide range of Enterprise-powered ves- sels. Three 36,500-dwt bulk car- riers built by Levingston Ship- building for the Falcon Shipping Group are each powered by twin R4-V-12 direct-reversing engines, providing a total of 15,600 bhp. The ability to burn heavy residual fuels makes these unsubsidized vessels competitive with foreign- flag bulk carriers. Four Enterprise R4-V16 diesels power the two 33,600-dwt tankers built by Bath Iron Works for the Falcon Group. These ships are chartered to the Military Sealift Command. Their R4-V16s, each rated at 7,360 bhp, are designed to operate on various fuels including cheaper, heavier grades with vis- cosities up to 3,500 sec Redwood 1. Transamerica Delaval has com- plemented its Enterprise diesel line by signing a licensee agree- ment with the Dutch engine man- ufacturer, Stork-Werksppor Diesel B.V. of Amsterdam. This agree- ment gives Transamerica the rights to the exclusive U.S. manufacture of the Enterprise/SWD TM 620 diesel. This engine, which oper- ates at up to 430 rpm, is offered as a 9-cylinder in-line unit with an output of 16,650 bhp, and a V-con- figuration 12-cylinder unit rated at 22,200 bhp. ' 38 Circle 283 on Reader Service Card Circle 191 on Reader Service Card Maritime Reporter/Engineering News
