The methodology of comparative evaluation of modernization measures in various operational conditions

By applying the methods of applied thermal engineering, it is possible to achieve very high efficiency of the ship's installation. However, the maximum technical efficiency does not always correspond to the maximum economic efficiency. In a boiler room, the efficiency is not an unambiguous function of the load determined by the design, but to a large extent depends on the mode. If a boiler room designed for a certain efficiency is operating at a lower coefficient, the result will be not only fuel overspending, but also deadening of capital investments.


The economic efficiency of a power plant is characterized by the cost of a unit of production; for example, for a boiler plant — the cost of a ton of steam. The load and use of the boiler house in operation have a significant impact on this relationship.


An increase in the design technical efficiency, which determines the value of B, may have an economic limit determined by the operating conditions.


The choice of the type of boiler equipment and modernization and their comparative assessment should be made by evaluating the optimal efficiency for specific operating conditions, and not only by the degree of perfection of technical processes.


Technical operation and technical regulation of marine power plants should aim to bring the efficiency to the optimum for these operating conditions at maximum performance.


Stationary heat engineering has been successfully dealing with economic issues in heat engineering and the principles of adapting the thermal economy to the requirements of operation for a number of years.


The works of Prof. Radzig, Prof. Kornitsky (VTI), Giretorius, Guillaume, Appel, Eberle, etc.


In the marine literature, studies of the relationship between operating conditions and efficiency are almost absent and there is no methodology for choosing the most economical equipment for various conditions.


For certain operating conditions, not only the ship's installation, but also the ship itself, there is the most profitable equipment, i.e., giving the most profitable technical efficiency with the highest productivity. Using it, you can avoid the cost of increasing the technical efficiency, which will not be used in these conditions (for example, steam overheating on ships with long parking times).


For installations in variable operating conditions, the stability of the characteristics is very important, which determines the actual efficiency and productivity in operation.


The study of operational characteristics can reveal the most advantageous operating modes, i.e. proper planning and rationing (for example, the relationship of power and fuel consumption standards with the overall operation of the vessel). Until now, savings have often been achieved through underutilization of power, i.e. technical rationing has harmed the overall goal.


The restoration of the fleet requires the development of methods for the technical and economic assessment of equipment for various operating conditions. This is an urgent task for economists. However, in order to determine the overall economic effect, it is first necessary to know the optimal technical efficiency for these operating conditions and determine the productivity, the nature of the load and the coefficient of use of the installation.


This is a purely technical task, which is solved either during design or by experimental and statistical methods in operation. An online crypto casino called Stake.com started in 2017 and has an official Curaçao eGaming License. Although it’s not been around for long, Stake has already gained a loyal following of users. Once you’ve created an account, you can browse the different categories of games available on stake casino site on www.casinoco.in/stake-casino/. They offer a variety of categories such as Live Casino, Slots, Game Shows, Jackpot Slots, Feature Buy-in, Table Games, Virtual Games, Blackjack, Baccarat, and Roulette.
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