scholarly journals Characteristics and Application of Hot Water Storage Power Generation. Optimization and Evaluation for Hot Water Storage Power Plant Combined with a 600MW Fossil Fuel Fired Power Station.

1995 ◽  
Vol 61 (584) ◽  
pp. 1521-1527
Author(s):  
Iwao Kawaguchi ◽  
Takehiro Ito ◽  
Kenji Mikata ◽  
Kohichi Shima
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Fossil Fuel ◽  
Water Storage ◽  
Hot Water ◽  
Power Station

CO2 Capture for Power Plants: An Analysis of the Energetic Requirements by Chemical Absorption

2006 ◽  
Author(s):  
Ana R. Diaz
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Co2 Capture ◽  
Power Plants ◽  
Fossil Fuel ◽  
Plant Performance ◽  
Energy Requirements ◽  
Co2 Absorption ◽  
Chemical Absorption ◽  
Technical Effort

The tendency in the world energy demand seems clear: it can only grow. The energetic industry will satisfy this demand-despite all its dialectic about new technologies-at least medium term mostly with current fossil fuel technologies. In this picture from an engineer’s point of view, one of the primary criterions for mitigating the effects of increasing atmospheric concentration of CO2 is to restrict the CO2 fossil fuel emissions into the atmosphere. This paper is focused on the analysis of different CO2 capture technologies for power plants. Indeed, one of the most important goal to concentrate on is the CO2 capture energy requirements, as it dictates the net size of the power plant and, hence, the net cost of power generation with CO2 avoidance technologies. Here, the Author presents a critical review of different CO2 absorption capture technologies. These technologies have been widely analyzed in the literature under chemical and economic points of view, leaving their impact on the energy power plant performance in a second plan. Thus, the central question examined in this paper is the connection between abatement capability and its energetic requirements, which seriously decrease power generation efficiency. Evidencing that the CO2 capture needs additional technical effort and establishing that further developments in this area must be constrained by reducing its energy requirements. After a comprehensive literature revision, six different chemical absorption methods are analyzed based on a simplified energetic model, in order to account for its energetic costs. Furthermore, an application case study is provided where the different CO2 capture systems studied are coupled to a natural gas cogeneration power plant.

WATER-STORAGE POWER STATION PLANTS OF LOW POWER

2016 ◽  
Vol 6 (1) ◽  
pp. 21-26
Author(s):  
Muradulla Mukhammadievich MUKHAMMADIEV ◽  
Boborakhim Urishevich URISHEV ◽  
Kurbon Salikhdzhanovich DZHURAEV ◽  
Jamol Makhmud ugli MAHMUDOV
Keyword(s):  
Power Plant ◽  
Low Power ◽  
Water Storage ◽  
Compressed Air ◽  
Power Station ◽  
Basic Parameters ◽  
Energy Of Interaction ◽  
Pumped Storage ◽  
Air Lift ◽  
Small Capacity

The technique of determining the basic parameters of the new water-lifting devices used in the composition of the pumped storage power plant of small capacity. Show the results of calculations by this technique for a pumped storage power plant of 10 kW. The results of calculations of the jet device and air-lift installation designed to work in PSP, showed the suitability of the proposed methodology that can be used in the design of hydropower facilities operating with a water-lifting devices using the energy of interaction between water and compressed air.

Flexible Natural Gas/Intermittent Renewable Hybrid Power Plants

2017 ◽  
Author(s):  
Michael Welch ◽  
Andrew Pym
Keyword(s):  
Power Generation ◽  
Energy Storage ◽  
Power Plant ◽  
Natural Gas ◽  
Gas Turbines ◽  
Fossil Fuel ◽  
Power Transmission ◽  
Hybrid Power ◽  
Renewable Power ◽  
Storage Technologies

Increasing grid penetration of intermittent renewable power from wind and solar is creating challenges for the power industry. There are times when generation from these intermittent sources needs to be constrained due to power transmission capacity limits, and times when fossil fuel power plant are required to rapidly compensate for large power fluctuations, for example clouds pass over a solar field or the wind stops blowing. There have been many proposals, and some actual projects, to store surplus power from intermittent renewable power in some form or other for later use: Batteries, Compressed Air Energy Storage (CAES), Liquid Air Energy Storage (LAES), heat storage and Hydrogen being the main alternatives considered. These technologies will allow power generation during low periods of wind and solar power, using separate discrete power generation plant with specifically designed generator sets. But these systems are time-limited so at some point, if intermittent renewable power generation does not return to its previous high levels, fossil fuel power generation, usually from a large centralized power plant, will be required to ensure security of supplies. The overall complexity of such a solution to ensure secure power supplies leads to high capital costs, power transmission issues and potentially increased carbon emissions to atmosphere from the need to keep fossil fuel plant operating at low loads to ensure rapid response. One possible solution is to combine intermittent renewables and energy storage technologies with fast responding, flexible natural gas-fired gas turbines to create a reliable, secure, low carbon, decentralized power plant. This paper considers some hybrid power plant designs that could combine storage technologies and gas turbines in a single location to maximize clean energy production and reduce CO2 emissions while still providing secure supplies, but with the flexibility that today’s grid operators require.

Gas Turbine With Constant Volume Heat Addition

2010 ◽  
Author(s):  
S. Can Gu¨len
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Gas Turbine ◽  
Thermal Efficiency ◽  
Power Plants ◽  
Fossil Fuel ◽  
Combined Cycle ◽  
Brayton Cycle ◽  
Heat Addition ◽  
Volume Heat

Increasing the thermal efficiency of fossil fuel fired power plants in general and the gas turbine power plant in particular is of extreme importance. In the face of diminishing natural resources and increasing carbon emissions that lead to a heightened greenhouse effect and greater concerns over global warming, thermal efficiency is more critical today than ever before. In the science of thermodynamics, the best yardstick for a power generation system’s performance is the Carnot efficiency — the ultimate efficiency limit, set by the second law, which can be achieved only by a perfect heat engine operating in a cycle. As a fact of nature this upper theoretical limit is out of reach, thus engineers usually set their eyes on more realistic goals. For the longest time, the key performance benchmark of a combined cycle (CC) power plant has been the 60% net electric efficiency. Land-based gas turbines based on the classic Brayton cycle with constant pressure heat addition represent the pinnacle of fossil fuel burning power generation engineering. Advances in the last few decades, mainly driven by the increase in cycle maximum temperatures, which in turn are made possible by technology breakthroughs in hot gas path materials, coating and cooling technologies, pushed the power plant efficiencies to nearly 40% in simple cycle and nearly 60% in combined cycle configurations. To surpass the limitations imposed by available materials and other design considerations and to facilitate a significant improvement in the thermal efficiency of advanced Brayton cycle gas turbine power plants necessitate a rethinking of the basic thermodynamic cycle. The current paper highlights the key thermodynamic considerations that make the constant volume heat addition a viable candidate in this respect. First using fundamental air-standard cycle formulas and then more realistic but simple models, potential efficiency improvement in simple and combined cycle configurations is investigated. Existing and past research activities are summarized to illustrate the technologies that can transform the basic thermodynamics into a reality via mechanically and economically feasible products.

Modeling and Control of Excitation Systems for Synchronous Generators

2011 ◽  
Vol 148-149 ◽  
pp. 983-986
Author(s):  
Farouk Naeim ◽  
Sheng Liu ◽  
Lan Yong Zhang
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Electrical Power ◽  
Control Element ◽  
Steam Turbines ◽  
Synchronous Generators ◽  
Power Station ◽  
Modeling And Control ◽  
Generation Cost ◽  
And Control

The electrical power generation and distribution in power plant suffers from so many problems, such as instability of demand and generation. These lead to increase of generation cost. The system under consideration is consist of two steam turbines each of 30 MW with total of 60 MW (2*30). The excitation system of 30 MW generators has been chosen, due to the problems faced by operators in power station. These problems include aging of the control element, feeding back signal and loading increase/ decrease problems.

Making deep reductions in CO2 emissions from coal-fired power plant using capture and storage of CO2

2003 ◽  
Vol 217 (1) ◽  
pp. 1-7 ◽  
Author(s):  
P Freund
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Fossil Fuel ◽  
Fuel Combustion ◽  
Fossil Fuel Combustion ◽  
Energy Technologies ◽  
Potential Capacity ◽  
Barriers To Implementation ◽  
Reduce Emissions ◽  
And Storage

Concerns about potentially dangerous changes in climate as a result of rising levels of greenhouse gases in the atmosphere are leading to restrictions on emissions of carbon dioxide (CO2), the principal anthropogenic greenhouse gas. The main source of CO2 emissions is fossil fuel combustion; power generation is the single largest contributor. Coal is widely used for power generation, but it releases approximately twice as much CO2 compared with the use of natural gas for each unit of electricity sent out. Emission reduction could be achieved by increasing the efficiency with which coal is burnt, or by switching to another fuel. These measures can achieve significant reductions in emissions, but, for deep reductions, more substantial changes would be required in the power plant. The technology for capture and storage of CO2 has been recognized in recent years as providing a means of cutting emissions from fossil fuel combustion by at least 80 per cent. Capture and storage is based on technology already in use for other purposes, so there is limited need for development, and the risk of application will be less than is typical for novel energy technologies. Hence, this seems to be a technology that could be deployed relatively rapidly to reduce emissions from fossil fuel fired plant. In this paper, the technology for capture and storage of CO2 will be reviewed, especially the costs and potential capacity for reducing emissions. Some barriers to implementation are identified, and work necessary to overcome them is discussed.

scholarly journals UTILIZING ASSOCIATED GAS TO GENERATE ELECTRICAL POWER TO REPLACE THE TRADITIONAL CRUDE / DIESEL FUEL AS SOURCE OF ENERGY FOR OIL & GAS FIELDS

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Elmamoun Ibrahim Mustafa ◽  
Elmamoun Ibrahim Mustafa ◽  
Hassan Hassan
Keyword(s):  
Energy Source ◽  
Power Generation ◽  
Crude Oil ◽  
Fossil Fuel ◽  
Oil And Gas ◽  
Electrical Power ◽  
Hot Water ◽  
Industrial Plant ◽  
Associated Gas ◽  
Gas Fields

– In the production of oil and gas wells, hot water, sand and gas is produced along with the hydrocarbon product. Several of these wells/fields produce associated natural can be used to generate power for site consumption. To verify this concept, 2B OPCO oil and gas national company (Formerly GNPOC) in Sudan, at block 4 oil field through Development Department started initiative to enter into a Cooperative Research and Development to demonstrate small scale power generation from utilizing associated gas. This Paper deals with the utilization of associated gas to electrical power. considers amount of associated gas daily being Flared in the atmosphere, It deals with number of fact that although there are essential need of using of traditional fossil fuel as energy source for industrial plants , there are several related concerns associated with the utilizing it in producing energy, utilization the fossil fuel (diesel ,crude oil …etc.) specially in electrical power to cover industrial plant electrical power demands (commercial plants ,factories ,residential , oil & gas fields….etc.) for production and processing of products or supplying services as well as auxiliary power for utilities, fuel cost and fuel logistics results in concerns for using the traditional fossil fuel like diesel and crude oil as energy source ,other issues of environmental impact e.g. air pollution, acidification and material waste. This paper took a hybrid approach, Study the requirements of Utilizing associated gas in electrical power generation, select the suitable solution for power generation from associated gas and collect the all data required for analysis.

scholarly journals Investigating geothermal reservoir potential using numerical simulation

2021 ◽  
Vol 9 (4A) ◽  
Author(s):  
Mohamed Motir ◽  
◽  
Ahmed El Banbi ◽  
Mahmoud Abu El Ela ◽  
Mohamed Samir ◽  
...  
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Power Plant ◽  
Temperature Gradient ◽  
Renewable Energy Sources ◽  
National Income ◽  
Pilot Project ◽  
Hot Water ◽  
Western Desert ◽  
High Temperature Gradient

Egypt depends on oil and gas for electricity generation (about 90%). The remaining small percentage comes from the hydropower of the High Dam (about 8%), the wind energy, and the solar cells. Therefore, it is important to adjust this unbalanced energy mix in Egypt. The continuous scientific research is the best way to try to solve this problem by studying the feasibility of using available renewable energy sources. Among these energies is the geothermal potential energy. However, it has not been exploited as a renewable source for power generation in Egypt yet. This study aims to determine the locations of reservoirs, which have high temperature gradient that can be suitable for implementing geothermal energy projects in Egypt. The study is executed using data of deep wells that are located in different regions to investigate the technical possibility of utilizing subsurface reservoirs for geothermal power generation pilot projects. The results indicate that the best reservoirs with high temperature gradient are located in the Western Desert and around the Gulf of Suez especially at Hammam Faraun and Ras Budran fields. These two locations have recorded reservoir temperatures of 100°C and 146°C at depths of 1150 m and 3800 m, respectively. Simulation studies are conducted, and the results show that these formations can feed a power plant by 21,000 bbl/day of hot water at well head temperature ranging between 94°C and 105°C from a pilot project of two producers and one injector in Ras Budran (or four producers and two injectors in Hammam Faraun). Each pilot will be able to generate annual amount of electricity equal to 4,977 MWh through a binary cycle power plant. This proposed pilot project can be scaled up to generate additional electricity. Accordingly, application of this unfunded research recommendations can save hard currency and increase the national income.

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