the paper is devoted to solution of some problems in nuclear power station generating unit intellectual control systems using genetic algorithms on the basis of control system model development, optimizations methods of their direct quality indices and improved integral quadratic estimates. some mathematical vector models were obtained for control system multicriterion quality indices with due ...

the biqian-10 block, located in henan oilfield of sinopic, contains many thin and interbedded reservoirs, which have been operated by cyclic steam stimulation for 20 years or more. therefore, it is a challenge to implement the conventional steam flooding. in order to improve the recovery of steam flooding, urea was used to assist steam flooding. urea can decompose into co2 and nh3, which are be...

This demonstration project was intended to repower an existing plant facility, the Lakeside Station in Springfield, Illinois. A single Integrated Gasification Combined Cycle (IGCC) process train was planned to generate a net output of 60 megawatts. The plant consists of a combined cycle (gas turbine, heat recovery steam generator, steam turbine) power train located in the existing buildings and...

In this paper we analyze the control problem for a steam cycle that produces power by recovering waste-heat from gas turbines on an offshore installation. The recovery unit is based once-through generator technology. main disturbances are large variations of turbine exhaust flowrate and temperature. We effect these operation cycle, specifically superheated pressure compare performance different...

Poor control of steam generator water level is the main cause of unexpected shutdowns in nuclear power plants. Such shutdowns are caused by violation of safety limits on the water level and are common at low operating power where the plant exhibits strong nonminimum phase characteristics. In addition, the steam generator is a highly complex, nonlinear and time-varying system and its parameters ...

Previous work [1] has shown that MEMS technology has significant potential to create more compact, higherperforming hardware for chemical oxygen iodine lasers (COIL). In COILs, the laser medium is a flowing gas that must be pumped through the system at high mass flow rates to ensure proper system operation. As a result, compact pumps with high pumping rates are a key element of the COIL system....

This work presents a novel steam accumulator and concrete-block storage system (SACSS) to recover part of the energy lost through cycle side during startups combined power plants (CCPPs). The accumulators are integrated with sensible-heat concrete provide superheated resulting then higher efficiency safer turbine operation compared systems based only on saturated steam. An economic analysis is ...

Ejectors are a kind of pump that does not have any moving components. In certain cases, the motor fluid may be liquid, steam, or another gas. The research focuses on using nano adsorption combined with multi ejector to fuel sophisticated power plant, which is equipped three shapes steam boiler generators. simulation was accomplished by implementing it cooperation two programs MATLAB A and B, to...