Dry-cleaning turbines for high efficiency

Article Abstract:

The extensive use of low-quality fuel oils has decreased the efficiency of many marine engine turbo-chargers because of the accumulation of combustion residues on the turbine nozzle and moving blades. The two most common approaches to cleaning turbines are the wet and dry cleaning methods. Experimental studies have shown that both methods are equally efficient in removing deposits on turbine blades. However, some researchers recommend dry cleaning since it does not cause thermal shock to turbine components.

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Diesel delivers economies

Article Abstract:

Diesel engines are better than gas turbines as propulsion system for cruise ships. For instance, diesel engines have 47% efficiency in running costs and can operate at lower MW ranges. These engines have lower carbon dioxide emissions due to lower fuel consumption. However, diesel engines have higher smoke (NOx) and noise emissions and are not compact in size that fewer rooms for passengers can be provided as compared to gas turbines.

Ship Building and Repairing, Cruisers, Evaluation, Passenger vessels, Cruise ships, Engines, Marine gas-turbines, Cruisers (Warships), Passenger ships, Marine diesel motors

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Boosting engine output economically

Article Abstract:

The proliferation of turbo-charged marine engines has encouraged marine engine manufacturers to establish service centers specializing in the repair and design of exhaust gas turbo-chargers. These firms, which include Asea Brown Boveri Inc., offer a wide range of services, such as turbo-charger balancing, shaft reconditioning, turbine blade welding and non-destructive testing.

Turbines, MISCELLANEOUS REPAIR SERVICES, Repair Services NEC, Other Personal and Household Goods Repair and Maintenance, Engine Turbochargers & Coolers ex Auto, Services, Services industry, Service industries, Repair services

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