Marine engineering

Pressure vessels carried aboard United States-registered ships must conform to rules of the U.S. Coast Guard. Subchapter F of Title 46, Code of Federal Regulat ions, covers marine engineering. Of this. Parts 50 through 61 and 98 include pressure vessels. Many of the rules are similar to those in the ASME Code, but there are differences. 

Black, viscous residuum direc tly from the still at 410 K (390°F) or higher serves as fuel in nearby furnaces or may be cooled and blended to make commercial fuels. Diluted with 5 to 20 percent distillate, the blend is No. 6 fuel oil. With 20 to 50 percent distillate, it becomes No. 4 and No. 5 fuel oils for commercial use, as in schools and apartment houses. Distillate-residual blends also serve as diesel fuel in large stationaiy and marine engines. However, distillates with inadequate solvent power will precipitate asphaltenes and other high-molecular-... 

Boylan, William, Marine Application of Dental Couplings, Paper 26— 1966, Society of Naval Architects Marine Engineers, May 1966. 

Craven, P.J. (1999) Intelligent Control Strategies for an Autonomous Underwater Vehicle, PhD Thesis, Department of Mechanical and Marine Engineering, University of Plymouth, UK. Craven, P.J., Sutton, R. and Burns, R.S. (1997) Intelligent Course Changing Control of an Autonomous Underwater Vehicle. In Twelfth International Conference on Systems Engineering, Coventry, UK, September, 1, pp. 159-164. 

Richter, R. (2000) A Predictive Fuzzy-Neural Autopilot for the Guidance of Small Motorised Marine Craft, PhD Thesis, Department of Mechanical and Marine Engineering, University of Plymouth, UK. 

Smith, E. C. (1937). A Short History of Naval and Marine Engineering. Cambridge, England Babcock and Wilcox. 

Rossel, Henry E., and Lawrence B. Chapman (eds.). Principles of Naval Architecture, The Society of Naval Architects and Marine Engineers, New York, 1939. 

Coftferencii Marine Engineering with Cdpper-Nickei London April 1988. Institute of Metals. 1.2 papefs... 

Saunders, S. R. J., Spencer, S. J. and Nicholls, J. V.., Proc. Conf. on DieselEngineCom-buslion Chamber Materials for Heavy Fuel Operation, 26-21 Oct. 1979, Inst, of Marine Engineers, London, in press. 

Logan, A., Corrosion Control in Tankers , Transactions of the Institute of Marine Engineers, No. 5 (1958)... 

A specific case of mobile sources, where nearly the same conventional system used for stationary sources (SCR-NH3) can be applied, regards the reduction of NO in the exhaust gas from marine engines and gas turbines. The first marine installation was in 1989 on a 37 000tdw deep-sea bulk carrier [61]. Many more installations exist today, but this still remains a niche application. 

The current trend throughout the refining industry is to produce more fuel products from each barrel of petroleum and to process those products in different ways to meet product specifications for use in various (automobile, diesel, aircraft, and marine) engines. Overall, the demand for liquid fuels has expanded rapidly and demand has developed for gas oils and fuels for domestic central heating and fuel oil for power generation, as well as for hght distillates and other inputs, derived from crude oil, for the petrochemical industries. 

Residual fuel oils and heavy marine fuels are composed of high-boiling-petroleum fractions, gas oils and cracked components. Residual and clarified oil streams from the FCC process can contain degraded alumina/silica catalyst fines. These 20- to 70-micron-diameter fines are known to contribute to a variety of problems in fuel injection and combustion systems. In marine engines, excessive injector pump wear, piston ring wear, and cylinder wall wear can all be due to the abrasive action of catalyst fines on these fuel system parts. 

NMEL or USNMEL Navy (US) Marine Engineering Laboratory, Annapolis, Md 20910... 

Before 1925, there were a few compounded oils made for special purposes, such as lubrication of marine engines and steam cylinders, but additives were not used in automotive crankcase oils. In the 1930 s, chemical compounds made by condensation of chlorinated paraffin wax with naphthalene were found to lower the pour points of oils. Pour depressants (9) apparently are adsorbed on small wax crystals which separate from oils when they are chilled. The protective adsorbed layer of additive prevents the normal interlacing of larger wax crystals which forms a gel. In 1934 polymerized unsaturated hydrocarbons first came into large scale commercial use to lower the temperature coefficient of viscosity of oils. Other compounds for increasing the viscosity index of oils have since become common. 

PAMETRADA Parsons and Marine Engineering Turbine Research Developme Assoc iation(Brit)... 

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