A Bulgarian project at Maritsa East power station demonstrated the proper transformation of air pollutants (SOx and NOx) into nitrogen fertilizer. Although this technology has not been put into practice in Bulgaria, it seems feasible on an industrial scale and so it may help to ease Portugal’s reliance on imports of nitrogen fertilizer and thereby contain the outfl ow of Portuguese funds. The d...

To synthesize the surface of metal bodies, a thermal spray coating is used. There great need for this new technology in today's progressive world where modification substrate material carried out deal. Thermal covering, electroplating, powder metallurgy and other metallurgical processes are used very quickly field modification. We have presented summary all different types review paper advantag...

This paper presents the energy and exergy analysis of thermal power plant Tuzla in Tuzla, Bosnia Herzegovina. The main aim this is to analyze components a 200 MW steam unit order identify quantify sites with highest losses calculate efficiency values all when operating at nominal load. influence change ambient temperature block load on value was taken into analysis. further includes impact oper...

A thermodynamic analysis of an operational 315 MW supercritical steam power plant (SPP) using the actual data is performed to assess the plant performance and identify the sites of energy losses and exergy destructions in each component of the plant. Various performance parameters such as component energy and exergy efficiencies, energy loss rate, exergy destruction rate, improvement potential ...

The paper addresses the unit commitment problem in power plant operation planning. For a real power system comprising coal and gas red thermal as well as pumped storage hydro plants a large-scale mixed integer optimization model for unit commitment is developed. Then primal and dual approaches to solving the optimization problem are presented and results of test runs are reported.