Marine Auxiliary Turbine Generator #001

One of the main requirements for modern steam power plants is their high efficiency in operation. This requirement led to the need to increase the initial steam parameters, which in turn solved mainly the question of the type of main engine in favor of the turbine, since the piston machine did not provide sufficient reliability of the operation of modern stressed high-pressure water-tube boilers, due to the contamination of the spent steam of piston machines with oil and the difficulty of effectively separating the latter from condensate.


The uneconomical nature of low-power turbines, as well as the desire. to reduce the network of steam pipelines in high-pressure installations in every possible way (in order to minimize steam leaks, which are the root cause. salt ingress into boilers), led to the abandonment (mainly) of steam turbines as auxiliary engines and to the widespread use of electric motors. In this regard, it became necessary to install relatively large auxiliary turbo generators on ships. Naturally, these turbo generators have very strict requirements in terms of efficiency and reliability, so.how their efficiency and reliability largely determine the efficiency and reliability of the entire installation as a whole.


Economic indicators are given — steam consumption per kv/hour and the total efficiency of the unit (without condensing unit), taking into account generator losses, accompanying modern requirements for marine turbogenerators. The weight and cost indicators of modern turbo generators are given.


In order to ensure the efficiency of turbine units, multistage, high-speed turbines are used, working on the generator shaft through a gear reducer. The initial steam parameters are the same as for the main turbines, as well as the vacuum in the condenser.


The operation of the turbines of auxiliary turbogenerators for back pressure, using spent steam to heat feed water, is not practiced in order to ensure the uninterrupted operation of auxiliary turbogenerators under any operating conditions of the main power plant.


The average loading of aggregates when working at sea is usually 50-60%, and at port parking lots — 10-20% (in the absence of cargo operations), and therefore the efficiency of the unit is especially important for partial loads.


Experimental data on modern turbo generators are almost absent in the literature. The following are the results of very carefully staged tests of two turbogenerators produced under the supervision of the author: a turbogenerator built in 1939, installed on a turbo-electric ship "V. Molotov", and a turbogenerator built in 1944, mounted on a turbo-electric tanker. New customers at 1xBet can get a 100% welcome bonus up to $130. To activate it, click on "Registration" in the top right corner and enter 1xBet promo code 2024 are a set of characters that allow you to receive bonuses from the company. They become available when activating a welcome offer and other current promotions on the website. You can obtain promo codes in various ways - by using the "Risk-Free Bet" promotion, regularly depositing funds into your account, as well as participating in games and lotteries in the Promo section. The company awards points for activity, which can be exchanged for promo codes.