Abstract
This paper presents a critical review of the research conducted for modeling and controlling supercritical power plants. Thermal power plants are classified according to the boiler pressure to supercritical and subcritical. The modeling concepts and control strategies of supercritical generation units are far more complex than those of subcritical. On the other hand, supercritical generation technologies are more efficient and much cleaner than subcritical generation units. From a deep technical analysis of the literature, there is no review that is dedicated to models-based control of supercritical power plants and most previous reviews are found to be too general to modeling-based control of fossil fuelled energy sources. This review reports the advancements on modeling and control of supercritical and ultra-supercritical plants as cleaner generation technologies. The various published achievements for modeling supercritical and ultra-supercritical units have been reviewed. The control strategies that fulfill the practical load demand requirements while keeping optimum efficiencies are also reviewed. Finally, expected future directions are reported as recommendations to overcome future challenges. The paper can be used as a brief educational directory to the postgraduate students or future researchers in the field.
Highlights
Fossil-fired power stations produce undesirable environmental effect of CO2 emissions which have to be reduced by an appropriate operation strategy and captured by a CO2 capture technology.On the other hand, there is continuous growth in power demand because of increase in industrialization and population, which leads to a continuous need for fossil fuel generation technologies because of their flexible operation and large generation capacities
The contribution of this paper is to present a recent and critical review that justifies the adoption of supercritical power plant (SCPP) technologies by reviewing the original research attempts for enhancement of SC and USC power plants’ operation by modeling-based control and contextualize the various techniques as classifications to show the importance of this generation technology as separate research topic
The modeling techniques for SC and USC units fall within two main categories: The recirculation mode is needed after grid synchronization in order to attain appropriate temperature, pressure, and water level, the model is or safely adopted bymodels closingand the
Summary
Fossil-fired power stations produce undesirable environmental effect of CO2 emissions which have to be reduced by an appropriate operation strategy and captured by a CO2 capture technology. Supercritical units are of the replacement of the existing coal-fired power plants with these fuel-saving and cleaner units the suitable technologies with improvements in environment and efficiency. The contribution of this paper is to present a recent and critical review that justifies the adoption of SCPP technologies by reviewing the original research attempts for enhancement of SC and USC power plants’ operation by modeling-based control and contextualize the various techniques as classifications to show the importance of this generation technology as separate research topic. Unlike most of the preview reviews that rather offer general reviews for modeling and control of fossil fuel units, which can be subcritical or supercritical.
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