power plant performance Articles
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Effect of Non-Condensable Gases on geothermal power plant performance. Case study: Kizildere Geothermal Power Plant-Turkey
Non-Condensable Gases (NCGs) are natural components of geothermal fluids, and they are a source of considerable capital and operating costs for power plants. The NCG content of geothermal steam varies over the world from almost zero to as much as 25% (wt). In this work, the influence of NCGs on the thermodynamic performance of geothermal power plants is analysed for various NCG content and ...
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On-line monitoring for improving performance of nuclear power plantspart 2: Process and componentcondition monitoring and diagnostics
The IAEA’s work in the area of nuclear power plant operating performance and life cycle management isaimed at enhancing the capability of Member States to utilize good engineering and management practicesdeveloped and transferred by the IAEA. In particular, the IAEA supports activities such as improving nuclearpower plant performance, plant life management, training, power uprating, ...
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On nuclear energy in Romania
The production of nuclear energy in Romania, at the Cernavoda Nuclear Power Plant (NPP) with CANDU-600 equipment and five 700 MW reactors, one of which is operational, will cover 10% of the national energy demand. In this paper we discuss the following problems: the exploitation of the installation in conditions of safety and the prospect of increasing the final power output of the NPP; the ...
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Exergy analysis and performance evaluation of Kizildere Geothermal Power Plant, Turkey
Conventional geothermal power plants (GPP) differ from fossil-fuel power plants (FFPP) in many ways. The most specific ones are that GPPs are not cyclic plants and the working fluid is not pure steam. Geothermal steam contains non-condensable gases (NCG) which degrade power plant efficiency. This discrepancy leads to two considerations in energy and exergy analysis of GPPs. One is that the amount ...
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Energy analysis of Brayton combined cycles
Economic and environmental considerations dictate the need for improved fuel utilisation in thermal power stations. To meet this goal, a design project was undertaken to assess the suitability for Combined Cycle application of different Gas Turbine (GT) cycles: Simple, Intercooled, Reheated, Intercooled/Reheated, Intercooled/Reheated/Regenerative cycle. Comparative figures for efficiency and ...
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Performance optimisation of the combined single flash binary geothermal power plant
In this paper, the optimal operating conditions of a hypothetical combined single flash-binary geothermal power plant are investigated and performance analyses are performed based on Aydin-Germencik field in Turkey. The relationship between flashing pressure, turbine inlet pressure of the binary cycle and total heat transfer area of the heat exchanger are determined for maximum power output of ...
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Formation and emission of fine particles from two Danish pulverised coal fired power plants
ABSTRACT Measuring campaigns at two Danish pulverised coal fired power plants has been performed. The power plants are equipped with the same type og flue gas cleaning devices. The concentrations and chemical compositions of the formed particles were similar for the two plants. The measurements were performed simultaneously at three locations including both total dust measurements and fine ...
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Application of power electronics with the US DOE distributed generation programme
Power electronics play an important role in achieving affordable, highly fuel-efficient fuel cell power generation plants and will enable the US Department of Energy's Office of Fossil Energy Fuel Cells programme to achieve higher national goals: environmental, economic and energy security. The initial focus on power electronics has been to understand the interactions between the SOFC stack, the ...
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Key Milestone Completed for Kalium Lakes Project in Western Australia
Clarke Energy has successfully completed a key milestone for Kalium Lakes Limited Beyondie Sulphate of Potash (SOP) mine in Western Australia. Now the project, one of the first of its kind in Australia, prepares for commencement of the process plant commissioning activities in the next few ...
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Enhancing the dynamic performance of electricity production in steam power plants by the integration of transient waste heat sources into the feed-water pre-heating system
Since the deregulation of the energy market the enhancement of steam power plant's dynamic performance has become more and more important. Nowadays, peak load is a profitable product at the energy stock markets if it can be provided reliably. This is in contrast to many power plants running constantly at full load. A very promising technique to improve the peak load capability of such power ...
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PV owners urged to use tech advances, retrofits to hike yield
Solar operators must capitalize on new panel coating and analytics technologies and optimize retrofit and repowering strategies to boost competitiveness, Mate Heisz, lead coordinator of new European solar O&M best practice guidelines, told New Energy Update. As capital costs fall and subsidies end, solar plant owners are seeking to reduce operations and maintenance (O&M) costs to gain ...
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The effect of ambient temperature fluctuation on the performance of geothermal power plants
Seasonal and diurnal temperature fluctuations have significant effects on cooling water temperature and on the condenser temperature. The power produced by plants that utilise a low temperature resources, such as geothermal units, are more susceptible to ambient temperature fluctuations than conventional power plants. An exergy analysis was performed to evaluate the effect of ambient temperature ...
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Evaluation of a process simulator for modelling and analysis of Rankine cycle steam power plants
Applicability of the HYSYS process simulation package to thermodynamic modelling and analysis of Rankine cycle steam power plants, using first and second law analyses, has been evaluated. Theoretical Rankine cycles, and more realistic cycles based on power plants modelled in other studies, were simulated. Energy, exergy and efficiency values determined from the simulations were compared to those ...
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Electricity reforms and firm level responses: changing ownership, fuel choices, and technology decisions
This paper examines how electricity reforms in India managed to influence the responses of generating firms. Indian electricity reforms have federal and state character. This paper utilises an extensive survey of generation units in Gujarat State. The findings suggest that reforms have created heterogeneous ownership of generation units. The fuel-mix and technology choices of new owners differ ...
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Thermodynamic analysis of an integrated gasification combined cycle power plant: effect of nitrogen supply on system performance
A comprehensive thermodynamic analysis of a conceptual integrated coal gasification combined cycle power plant is presented. Energy and exergy efficiencies and exergy destructions of each sub–unit are calculated. The effect of nitrogen, which is supplied from the Air Separation Unit (ASU) of the gasification unit to the combustion chamber of the gas turbine (GT) cycle, on system performance is ...
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The role of knowledge management in NPP organisational performance
Various Nuclear Power Plants (NPPs) around the globe have begun to recognise the strategic importance of Knowledge Management (KM) initiatives in achieving sustained high levels of operational performance. Although these organisations have been involved in KM-related activities for some time, they typically have not viewed and managed these activities from a KM perspective. Several NPPs have been ...
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The combined effect of changes in the condenser cooling seawater temperature, fouling and salinity on the thermal performance of a pressurised water reactor nuclear power plant
This study presents the effect of temperature, fouling factor and salinity of the condenser cooling seawater and adverse effect on the thermal performance of a nuclear power plant. These are the most important factors affecting the condenser performance. The study is carried out on a pressurised water reactor nuclear power plant. The results showed that a loss in the plant output power and ...
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Techno economic performances of a dry cooling solar power tower plant under Algerian climate
The Sahara represents more than 80% of the total area of Algeria. This region is characterised by the high level of solar energy potential. On the other hand, concentrating solar power plants represent 70% of the total power to be installed in the framework of the national plan of renewable energy and energy efficiency which consists of installing up 22,000 MW of power generating capacity from ...
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Techno-economics of micro-hydro power plants for remote villages in Uttaranchal in India
Results of a techno-economic feasibility evaluation of some micro-hydro power (MHP) plants being planned and implemented for remote village power supply in the state of Uttaranchal in India are presented. The capital cost of MHP plants in the capacity range of 20–100 kW (including cost of local transmission and distribution system), investment requirement per unit of rated capacity, and relative ...
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Simulation tool for optimising the design and operation of combined cycles
Carrying out a preliminary analysis of the complex thermal processes of combined cycle power plants enables us to optimise their performance, reduce costs and ensure the supply chain. The use of mathematical modelling and simulation tools plays a key role in these environments because we can study the transient states that take place in the system. Developed by Empresarios Agrupados, EcosimPro is ...
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