SOLIŃSKI J., BICKI Z.
Proceedings of the WEC in Kiev
Energetyka 2003, no. 12, p. 773, 4 figs, 8 refs
There was held in Kiev in days since 9-th to 15-th September of present year an annual conference of the World Energy Council (WEC) tied with the feast of Ukrainian Power Industry. Ukrainian Committee of the WEC in cooperation with Ukrainian Ministry of Fuels and Energy was an organiser and a host of the WEC proceedings. Key conclusions and decisions of the Administrating Council of the WEC concerning among others the programme and organisation of the 19. Energy Congress are given in the paper. There are also characterised Ukrainian energy sector and main directions of it development in the nearest decades.
JACZEWSKI M., GOLEC T.
CENERG. Works on the Energy Strategy for the Central East Europe
Energetyka 2003, no. 12, p. 777, 2 figs, 2 tabs, 7 refs
European Union has authorised Polish proposition of creation at the Polish Institute of the Power Engineering in Warsaw a Perfection Centre which will prepare a proposition of the energy strategy for ten countries of Central East Europe - applicants for the EU members (Bulgaria, Czech Republic, Estonia, Hungary, Lithuania, Latvia, Poland, Romania, Slovakia and Slovenia. As an objective of the Centre is to reinforce ties between EU and CEE region in the field of the power industry.
Personal Protection of Workers in Power Industry against Real Menaces at the Work
Energetyka 2003, no. 12, s. 780, 2 figs, 2 tabs
During last 30 years the Du Pont company transferred it knowledge and experience in the field of the industrial safety and safety management to over 1500 companies in the world. Du Pont is an inventor and the greatest in the world manufacturer of materials of the highest quality and high effectiveness: NOMEX, KEVLAR, TEFLON and TYVEX which protect the people against thermal and chemical agents, as well as against mechanical shocks. NOMEX fibres which are the best among materials protecting people against thermal menaces are characterised in the paper.
NATKANIEC H., SIKORA T., SOBIERAJSKI W.,
WOJTOWICZ C., ŚWIĄDER J.
Instrument Measuring the Properties of Air - Coal Dust Mixtures
Energetyka 2003, no. 12, p. 783
Within frames of the investigation work in the EMAG (Polish Centre of Electrification and Automatic Control in the Coal Industry) there has been elaborated a method of property measurement of three - component mixtures transported in pipelines. Utilising this method there was designed an measuring instrument for air mixtures of PMP type. The instrument is destined for continuous measurement of the ash content in the coal duet or content of combustible particles in fly ashes during the pipeline transport as the duet - air mixture.
Ways of Protection against Effects of the Inner Arc in the MV Switchgears
Energetyka 2003, no. 12, p. 787, 6 figs, 1 tab., 4 refs
ELEKTROBUDOWA company has manufactured for dozen years arc resistant switchgears exclusively. Ways of assuring arc - resistance ability were proved as effective and sufficient in practice. Cost of manufacturing the switchgear in arc - resistant version are not much more greater then ones of version not resistant against arc. Achieved security of employees is not able to be calculated in money.
BUJKO J., STAWSKI P.
Thermal Power Units on the Energy Market
Energetyka 2003, no. 1 2, p. 793 (Bulletin of the IASE p. 1), 4 figs, 6 refs
Electric energy market creates sharp operation regime for the power units. In such conditions as deep as possible optimisation of the power unit operation is needed. It concerns the optimisation process of participation of the power units in the balancing market and in the market of control services as well. In the paper some basic ideas of power units control are presented. The necessity of optimisation in relation of the AGC controller and power unit controller is pointed out.
Need of Active Energy Policy for Local Governments
Energetyka 2003, no. 12, p. 797 (Bulletin of the IASE p. 51, 1 tab., 11 refs
Problems of local government with regard to supplies the communes with electricity and heat energy are presented in the paper. The usefulness of creating multi-energy and multi-infrastructural companies in order to meet the aims concerning energy delivery with regard to regional development.
Searching for Origin and Remedia in the Case of Big Black-Outs
Energetyka 2003, no. 12, p. 801 (Bulletin of the IASE p. 9), 14 refs
The Black-out that hit the north-east of USA and Canada in August is treated as alarming signal. Main reason of this accident is inadequacy of resources: technical, communicational and personal in US grid structures. Various reports and analyses give essentially the same recommendations: to provide reliable and affordable electricity we must increase both, grid investments and regulatory certainty by making clear who is responsible for maintaining and upgrading the grid, put in place mandatory compliance with reliability rules of legislation and develop new advanced transmission and protection technologies.
KOZLOWSKI M., PIESIEWICZ T., WERON A.
Risk Management on the Energy Market Considering Its Balancing Segment, Power Stock Exchange and Over-the-Counter Market
Energetyka 2003, no. 12, p. 804 (Bulletin of the IASE p. 121, 3 figs, 12 refs
Guidelines for a comprehensive risk management in an electricity company are introduced in the paper. A solution is based on such advanced mathematical methods of the contract portfolio management, as sensitivity analysis and risk measures (VaR, EaR or CFaRI. The effective system of risk management on the Polish energy market should achieve following goals: identification and measurement of the risk, pointing out tools for risk management, supporting a general strategy of the company and increasing its value.
BORGOSZ-KOCZWARA M., WYŁOMAŃSKA A.
Nash Equilibrium within Non Co-operative Games at Day Ahead Market
Energetyka 2003, no. 12, p. 808 (Bulletin of the IASE p. 161, 4 figs, 6 tabs, 11 refs
A Day Ahead Market as a non co-operative game in which the power generators are the players is considered in the paper. There is solved the problem of optimal strategy for the players consisting in maximisation of their profit. In the analyses the game theory techniques are used. Finding the Nash Equilibrium strategy for the players is the main result analyses.
HALAWA T., SKORUPSKI W., MIKOŁAJCZAK H., MISIOREK A.
Application of Area Control Error Prediction to Load-Frequency Control in the Electric Power System
Energetyka 2003, no. 12, p. 812 (Bulletin of the IASE p. 201, 5 figs, 15 refs
A conception of the predictive control in application to load - frequency control in an electric power system as an untypical case of the model based on the methodology of predictive control (MPC) is presented in the paper. This model is based on very short prediction modelling of the control signals being input and output of the central (conventional) regulator with models as auto-regressive ones with the integrator (ARII. Proposed concept improves the regulator action. The efficiency of its action is verified with the use of the power system incremental model in the simulation procedure.
Condition Assessment of Modernised Flow System in the LP Turbine Part. Operational Experiences of the Rybnik Power Station
Energetyka 2003, no. 12, p. 819 (Bulletin of the Pro Novum p. 17), 13 figs, 1 tab.
In the present year, after eight years of faultless land without any problems) operation the power unit no. 4 in the Rybnik Power Station was subject of the overhaul. The overhaul enabled fuli assessment of the technical condition of the LP part modernised in 1995. In the paper are included operational experiences arising from conducted works.
BILKOWSKI E., SZMAJ P.
Modernisation of the 360 MW Turbosets as an Element of a Strategy for Development of the Generating Power in the Bełchatów Power Station
Energetyka 2003, no. 12, p. 823 (Bulletin of the Pro Novum p. 211, 7 figs
Maintenance and overhaul problems of equipment in the turbine hall were a base of modernisation begun in 1994. The modernisation adapted the equipment to requirements of the power system which was being changed. The modernisation process contain of not only the flow system of the turbines, but also it was directed to improvement of availability and decrease of failure factor of all equipment in the turbine hall. As a result of modernisation there were achieved improvement of generation efficiency, and operational indices of the equipment, as well as decrease of the expenditures for overhauls. Prototype modernisation solutions of the equipment in the turbine hall and cooling system are presented in the paper. Many of them will be used within the frame of Complex Programme of Technical Reconstruction and Modernisation of the Power Units. An objective of the Programme is to extend life time of the power units up to 320 000 h of operation, according to the development strategy of generation power authorised by the Board of the Bełchatów Power Station plc.
Diagnostics of the Turbine Flow System Elements
Energetyka 2003, no. 12, p. 828 (Bulletin of the Pro Novum p. 261, 3 figs
Condition of the thermal and mechanical equipment in power stations influences fundamentally the reliability of power units. In order to keep high reliability, availability and efficiency of the equipment there is necessary first of all to assess properly condition of the equipment and to do proper overhauls. Substantial information on the equipment state, especially on the turbine flow system gives diagnostic tests (overhaul diagnosis). It creates a possibility of repairs in a good time, exchange of wornout elements and considerable improvement of operation conditions, so it plays a principal role in data achievement for assessment of the equipment state.
GRZESICZEK E., TRZESZCZYŃSKI J., RAJCA S.
Possibilities of Operation Time Extension for Flow Part Elements in Steam Turbines
Energetyka 2003, no. 12, p. 831 (Bulletin of the Pro Novum p. 29), 4 figs, 7 tabs, 10 refs
A dominant kind of faults of rotors, guide vanes, valve chambers and casings in steam turbines are fatigue cracks. The faults have local character and can be repaired if the proper technology is used. If proper repair principles are met, repairs can be done repeatedly without harm for repaired elements.
WRÓBLEWSKI Z., SZUBA M., HABRYCH M.
Establishment of Magnetic Fields Disposition in Surroundings of HV Power Lines for the Needs of Ecological Expertises
Energetyka 2003, no. 12, p. 847
Administrative decisions issued according to the Environment Protection Law being in forte cause controversies concerning the impact of the HV overhead lines on the environment. These decisions obligate the line owners to survey ecologically existing objects. In this survey a substantial role plays establishment of the area below the line with the electric field strength exceeding 1 kV/m. The wide of this area decides on possibilities of use the terrain below the line.