™Small steam turbine operating at low pressure for generating electricity in the Amazon

Has Restructuring Improved Operating Efficiency at US Electricity Generating Plants?

This paper assesses whether impending electricity industry restructuring in an investor-owned utility’s home state encourages the utility to improve efficiency at its generating plants. Under costplus regulation, utilities have little incentive to reduce operating costs since they can pass them directly to ratepayers. Restructuring programs increase utilities’ exposure to competitive markets fo...

Steam Turbine Steam System

Steam Turbine Configuration

Most electric power is produced by steam turbines. This is because the steam cycle is well suited to the conversion of heat to work and steam turbines can be built in a wide range of capacities up to about 1500 MW. Steam turbines are basically very simple having fixed blades to accelerate the steam and moving blades to absorb the resulting kinetic energy. The moving blades are mounted on a rota...

Steam turbine model

In order to characterize the transient dynamics of steam turbines subsections, in this paper, nonlinear mathematical models are first developed based on the energy balance, thermodynamic principles and semi-empirical equations. Then, the related parameters of developed models are either determined by empirical relations or they are adjusted by applying genetic algorithms (GA) based on experimen...

Numerical Modeling of Wet Steam Flow in Steam Turbine Channel

In power station practice, work is extracted from expanding steam in three stages namely High Pressure(HP), Intermediate Pressure(IP) and Low Pressure(LP) turbines. During the expansion process in the LP turbine, the steam cools down and at some stages, it nucleates to become a two-phase mixture. It is well-acknowledged in the literature that the nucleating and wet stages in steam turbines are ...