This page contains a Flash digital edition of a book.
Focus on Coal 


Cleaner technologies reduce pollution


Clean coal technologies driving many new coal-fired projects, reports Sean Ottewell.


Sean Ottewell afirma que las tecnología limpias de carbón impulsan muchos nuevos proyectos relacionados con el carbón.


Technologien mit Reinkohle bringen viele Kohleprojekte voran, berichtet Sean Ottewell.


C


oal-fired power generation is being dominated by the emergence of new technologies designed to boost efficiency and


reduce pollution. Tese include mega generation units, conversion of coal into gas for power generation, and further developments in carbon capture. Construction of the new coal-fired


power plant at Kozienice in Poland has reached an important milestone with the erection of the first of four boiler columns on the site.


Te ultra-modern bituminous coal


power plant is being built by Mitsubishi Hitachi Power Systems Europe (MHPSE) and consortium partner Polimex- Mostostal (PXM); the purchaser is Polish energy supplier ENEA Wytwarzanie. Te plant is designed for an installed capacity of 1075MW and a 45.59% net efficiency. On being placed into operation as planned in 2017, it will rank among the most efficient of its type in the world and join an existing plant on the Kozienice site (Fig. 1).


Te four columns of the boiler supporting structure are currently fixed on its foundation. Te total weight of this structure amounts to 3250 tonnes. More than 100 highly-qualified engineers will participate in the assembly process. Construction of the main supporting structure of the boiler is expected to be complete shortly.


Fig. 1. The new plant at Kozienice will be on the same site as ENEA Wytwarzanie’s 2913 MW coal-fired plant.


Te most important components for the ultra-modern unit either come from companies within the corporate group or from parent company Mitsubishi Hitachi Power Systems (MHPS). Tese include the utility steam generator including coal bunkers, coal mills, firing equipment, flue gas cleaning, and some balance-of-


44 www.engineerlive.com


plant. MHPS supplies the steam turbine, generator and auxiliary equipment. Babcock-Hitachi (BHK) supplies the flue gas desulphurisation plant. PXM is responsible for the construction, assembly and supply of the service equipment of the power plant. “Te construction of the new 1075MW power unit is an extremely complex process, requiring perfect co-operation of all involved in the project parties, beginning with the project, through deliveries, adjusting of the contractors’ and sub-contractors’ schedules, ending with quality assurance and supervision. Important is the fact that all those actions are happening within the existing infrastructure of the Kozienice power plant,” noted Krzysztof Sadowski, president of the ENEA Wytwarzanie board of directors. Across the Atlantic, Mississippi Power’s


Kemper County energy facility’s combined cycle unit has been placed into commercial operation, marking the facility’s most significant milestone to date. Te unit was originally synchronised to the grid on 5 October last year during testing using natural gas as fuel. Over the past 11 months, critical testing was done on various components. Te testing culminated with the combined cycle unit passing all applicable performance and environmental tests and being made available at full output for commercial operation. During the course of the testing, the


Kemper combined cycle unit logged more than 1,200 hours on line generating power for homes and businesses. To date, the Kemper combined cycle unit has generated enough energy to supply 23,000 homes for a year. Te project earlier reached two major milestones with the testing of the combined cycle unit and pressure testing of both gasifiers. Another significant milestone – the first gasifier heat up – is scheduled for later this year.


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52