scholarly journals Evaluation of the Effect of the Electric Power Generation Structure and Efficiencies of Thermal Power Plants on the Environmental Performanve of the Aluminum Production.

1995 ◽  
Vol 74 (1) ◽  
pp. 46-52
Author(s):  
Mitsuo KOBAYASHI ◽  
Atsushi INABA ◽  
Tetsuo NAKAYAMA
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Power Plants ◽  
Thermal Power ◽  
Aluminum Production ◽  
Thermal Power Plants ◽  
Electric Power Generation ◽  
Generation Structure

Will thermal power plants with CCS play a role in Brazil's future electric power generation?

2014 ◽  
Vol 24 ◽  
pp. 115-123 ◽  
Author(s):  
Larissa Pinheiro Pupo Nogueira ◽  
André Frossard Pereira de Lucena ◽  
Régis Rathmann ◽  
Pedro Rua Rodriguez Rochedo ◽  
Alexandre Szklo ◽  
...  
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Electric Power Generation

Cogenerative Below Ambient Gas Turbine (BAGT) Performance With Variable Thermal Power

2005 ◽  
Vol 127 (3) ◽  
pp. 592-598 ◽  
Author(s):  
M. Bianchi ◽  
G. Negri di Montenegro ◽  
A. Peretto
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Gas Turbine ◽  
Power Plants ◽  
Ambient Pressure ◽  
Thermal Power ◽  
Combined Cycle ◽  
Electric Power Generation ◽  
Pressure Discharge ◽  
Discharge Gas

The use of gas turbine and combined cycle power plants for thermal and electric power generation is, nowadays, a consolidated technology. Moreover, the employment of combined heat and power production, especially for low power requirements, is constantly increasing. In this scenario, below ambient pressure discharge gas turbine (BAGT) is an innovative and interesting application; the hot gases discharged from a gas turbine may be expanded below ambient pressure to obtain an increase in electric power generation. The gases are then cooled to supply heat to the thermal utility and finally recompressed to the ambient pressure. The power plant cogenerative performance depends on the heat and electric demand that usually varies during the year (for residential heating the heat to electric power ratio may range from 0.3 to 9). In this paper, the thermal load variation influence on the BAGT performance will be investigated and compared with those of gas turbine and combined cycle power plants.

Cogenerative BAGT Performance With Variable Thermal Power

2002 ◽  
Author(s):  
M. Bianchi ◽  
G. Negri di Montenegro ◽  
A. Peretto
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Gas Turbine ◽  
Power Plants ◽  
Ambient Pressure ◽  
Thermal Power ◽  
Combined Cycle ◽  
Electric Power Generation ◽  
Pressure Discharge ◽  
Discharge Gas

The use of gas turbine and combined cycle power plants for thermal and electric power generation is, nowadays, a consolidated technology. Moreover the employment of combined heat and power production, especially for low power requirements, is constantly increasing. In this scenario, Below Ambient pressure discharge Gas Turbine (BAGT) is an innovative and interesting application; the hot gases discharged from a gas turbine may be expanded below ambient pressure to obtain an increase in electric power generation. The gases are then cooled to supply heat to the thermal utility and finally recompressed to the ambient pressure. The power plant cogenerative performance depends on the heat and electric demand that usually varies during the year (for residential heating the heat to electric power ratio may range from 0.3 to 9). In this paper, the thermal load variation influence on the BAGT performance will be investigated and compared with those of gas turbine and combined cycle power plants.

scholarly journals The Role of the Electricity Sector in the Economic Development of Egypt

2018 ◽  
Vol 11 (5) ◽  
pp. 86-104
Author(s):  
S. N. Volkov ◽  
A. Yu. Sharova
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
Power Plants ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Electricity Sector ◽  
Energy Sources ◽  
Thermal Power Plants ◽  
Generation Structure

Egypt is the most dynamically developing country in the region of North Africa. In the nearest future, it is expected to turn into the largest economy of Africa in terms of GDP measured by PPP and to overtake Nigeria. The leadership of Egypt considers accelerated development of the national energy complex, including electricity sector, as one of the main drivers of the economic growth. It will be based on the latest achievements of scientific and technological progress and new forms of attracting foreign direct investment, mainly concession agreements in the format of public-private partnership. This allows medium-sized companies to participate in the process of transnationalization that becomes one of its distinguishing features on the modern stage. The master plan for the development of the electric power industry until 2035 envisages the use of various traditional and renewable energy sources. It is planned to create a balanced electric power generation structure, overcoming the current bank tilt towards gasfired thermal power plants. It is expected that in the 2034/35 financial year coalfired power plants in Egypt will account for 34.0% of electricity generation, 19.4% for solar power plants (11.8% for photovoltaics and 7.6% for concentrated solar power), 19.4% for gas-fired power plants, 14.6% for wind power plants, 8.8% for nuclear power plants, 3.2% for hydro power plants and almost 0.6% for thermal power plants working on fuel oil. The objective of electricity sector’s development is the creation of an advanced branch of the economy, in which renewable energy sources and energy-efficient technologies play an important role, ensuring uninterrupted and reliable energy supply, as well as turning the country into a regional energy hub. All this will contribute not only to overcoming the crisis phenomena in the industry itself, observed since 2010s, but also to further change in the nature of the inclusion of the Egyptian economy in the system of the international division of labor, which has undergone significant changes over the past decades.

scholarly journals Selection of Heat Pump Capacity Used at Thermal Power Plants under Electricity Market Operating Conditions

Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 226
Author(s):  
Milana Treshcheva ◽  
Irina Anikina ◽  
Vitaly Sergeev ◽  
Sergey Skulkin ◽  
Dmitry Treshchev
Keyword(s):  
Electric Power ◽  
Heat Pump ◽  
Heat Load ◽  
Power Plants ◽  
Thermal Power ◽  
Heat Pumps ◽  
Operating Conditions ◽  
Energy Resources ◽  
Thermal Power Plants ◽  
Maximum Heat

The percentage of heat pumps used in thermal power plants (TPPs) in the fuel and energy balance is extremely low in in most countries. One of the reasons for this is the lack of a systematic approach to selecting and justifying the circuit solutions and equipment capacity. This article aims to develop a new method of calculating the maximum capacity of heat pumps. The method proposed in the article has elements of marginal analysis. It takes into account the limitation of heat pump capacity by break-even operation at electric power market (compensation of fuel expenses, connected with electric power production). In this case, the heat pump’s maximum allowable capacity depends on the electric capacity of TPP, electricity consumption for own needs, specific consumption of conditional fuel for electricity production, a ratio of prices for energy resources, and a conversion factor of heat pump. For TPP based on combined cycle gas turbine (CCGT) CCGT-450 with prices at the Russian energy resources markets at the level of 2019, when operating with the maximum heat load, the allowable heat pump capacity will be about 50 MW, and when operating with the minimum heat load—about 200 MW.

scholarly journals STATE AND PROSPECTS OF THERMAL POWER GENERATION IN THE CONDITIONS OF UKRAINE’S COURSE ON CARBON-FREE ENERGY

2021 ◽  
pp. 4-16
Author(s):  
M.V. Cherniavskyi
Keyword(s):  
Power Generation ◽  
Free Energy ◽  
Power System ◽  
Fuel Consumption ◽  
Power Plants ◽  
Thermal Power ◽  
Specific Fuel Consumption ◽  
Regulatory Function ◽  
Thermal Power Plants ◽  
Thermal Power Generation

The structure of electricity cost formation for consumers, including depending on the cost of TPP generation, «green» energy and other sources, is investigated, and the main conditions of the efficient regulatory function fulfillment in the power system by thermal power generation in the conditions of Ukraine's course on carbon-free energy are formulated. It is shown that excessive electricity losses in networks and, especially, accelerated increase of the share of «green» generation, much more expensive than nuclear, hydro and thermal, mainly contribute to the growth of electricity costs for non-household consumers and the need to raise tariffs for the population. This accelerated increase directly contradicts the Paris Climate Agreement, according to which plans to reduce Ukraine’s greenhouse gas emissions must be developed taking into account available energy resources and without harming its own economy. The dependences of the specific fuel consumption on the average load and the frequency of start-stops of units are found and it is shown that the increased specific fuel consumption on coal TPPs is an inevitable payment for their use as regulating capacities of UES of Ukraine. In this case, the higher the proportion of «green» generation and a smaller proportion of generating thermal power plants, especially increasing specific fuel consumption. It is proved that in the conditions of growth of the share of «green» generation in Ukraine the share of production of pulverized coal thermal power plants should be kept at the level of not less than 30 % of the total electricity generation. It is substantiated that a necessary condition for coal generation to perform a proper regulatory role in the power system is to introduce both environmental and technical measures, namely — reducing the suction of cold air to the furnace and other boiler elements, restoring condensers and cooling systems, etc. An important factor in reducing the average level of specific fuel consumption is also the reduction of coal burn-out at thermal power plants, where it still remains significant, due to the transfer of power units to the combustion of bituminous coal concentrate. Bibl. 12, Fig. 5, Tab. 5.

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