Abstract

The article discusses the energy and economic aspects of the operation of large steam power units during variable load energy system. The paper also focus on analyis of issues related to the start-up and shutdown of turbines, and in particular:

• starting performance of large steam turbines, their equipment and design changes to work with varying loads,
• the impact of working time on the characteristics of the gym, tr) row all on their efficiency and individual heat consumption,
• technical and economic czytrniki characterizing the gym (fuel costs for the start-up and shutdown, daily and annual non-fuel costs, the total cost of energy production etc.).

There also describes the arrangement of a computer system for controlling the gym and steam turbine control during start-up and loading.Finally we put forward proposals for how to work the steam power unit.