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MONITORING AND DIAGNOSTICS OF POWER TRANSFORMER INSULATION
transformer insulation monitoring
2009/10/13
Liberalization of the energy market drives utilities to a more cost-effective power system. Power transformers are the most complex, important and critical components of the transition and distributio...
AN INCREASE OF HYDRO-AGGREGATE'S INSTALLED POWER AND EFFICIENCY FACTOR BEFORE THE REVITALIZATION PHASE
hydro-aggregates power increasing calculations
2009/10/13
The revitalization of hydro-aggregates should be performed before the life-time expiry of most their parts. But, as in our practice aggregates have been under exploitation much longer then theoretical...
APPLICATIONS OF OXYGEN FOR NOX CONTROL AND CO2 CAPTURE IN COAL-FIRED POWER PLANTS
oxy-combustion CO2 capture NOx
2009/10/13
Two promising combustion modification approaches applicable to pulverized coal (PC) fired boilers are presented: "Oxygen-Enriched Combustion" (OEC) for NOx control and "Oxy-Combustion" (PC-OC) for CO2...
PROSPECTS FOR CO-FIRING OF CLEAN COAL AND CREOSOTE-TREATED WASTE WOOD AT SMALL-SCALE POWER STATIONS
co-combustion clean coal railway sleepers
2009/10/13
If a small-scale clean coal fueled power plant is co-fueled with 5% of creosote-treated used-up sleeper wood, the decontamination by carbonisation at 500°C in an indirectly heated rotary kiln with the...
The paper aims in examining and evaluating the state of the art in technological concepts towards zero-emission coal-fired power plants. The discussion is based on the evaluation of a novel concept de...
CO2 CAPTURE AND STORAGE IN GREECE: A CASE STUDY FROM KOMOTINI NGCC POWER PLANT
carbon dioxide sequestration fossil fuel power plants
2009/10/13
The aim of this paper is to examine the possibilities for the abatement of CO2 emissions in the Greek fossil fuel power generation sector. An overview of CO2 capture, transportation, and storage conce...
PROSPECTS FOR USE OF MICRONIZED COAL IN POWER INDUSTRY
PROSPECTS MICRONIZED COAL POWER INDUSTRY
2009/10/13
Heat-and-power engineering is the basis for industrial development of developed countries and the main energy fuel for plants is coal. The main directions in improvement of coal energy technologies ar...
GASIFICATION IN A CFB-REACTOR - A SIMPLE AND ECONOMIC WAY OF CO-FIRING RENEWABLE FUELS IN EXISTING POWER PLANTS
GASIFICATION CFB-REACTOR CO-FIRING RENEWABLE FUELS EXISTING POWER PLANTS
2009/10/13
In 1997 AE Energietechnik implemented in the course of a EU-THERMIE funded demonstration project, together with some partners, a biomass gasifier in Zeltweg, Austria. This plant operates as a Circulat...
Heat Transfer to a Power-Law Fluid in Arbitrary Cross-Sectional Ducts
Heat Transfer Laminar Flow Non-Newtonian Elliptic ducts
2009/10/13
Numerical solutions for laminar heat transfer of a non-Newtonian fluid in the thermal entrance region for triangular, square, sinusoidal, etc. ducts are presented for constant wall temperature. The co...
The Power of Statistical Tests for Trend Detection
Trend detection Power of a test t-test Mann-Kendall test
2009/10/12
The existence of a trend in a hydrological time series is detected by statistical tests. The power of a test is the probability that it will reject a null hypothesis when it is false. In this study, t...
中国矿业大学工程热力学课件chapter 9 Steam Power Cycle。
中国矿业大学工程热力学课件chapter 8 Gas Power Cycle1。
Insulation Condition Assessment of Power Transformers Using Accelerated Ageing Tests
Transformer insulation assessment monitoring
2009/7/28
Thermal stress due to losses and environment temperature causes degradation to paper/oil insulation systems in transformers, even at operating temperature. Experience indicates that thermal ageing of ...
Power Distortion Issues in Wind Turbine Power Systems Under Transient States
Power quality power system harmonics time-frequency analysis
2009/7/28
In this paper time-frequency methods have been investigated for complex investigations of transient states in wind power plants. Application of parallel processing in time and frequency domain brought...
Wind Power, Distributed Generation: New Challenges, New Solutions
Wind generation distributed generation computational intelligence
2009/7/28
This paper discusses some issues related with the growing importance of wind power and in modern power systems and some challenges raised by the emergence of distributed generation, and how computatio...