scholarly journals Multi-Attribute Rating METHOD for Selecting a CLEAN COAL Energy Generation Technology

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7228
Author(s):  
Wioletta Lipka ◽  
Cezary Szwed
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Technology Management ◽  
Energy Security ◽  
Technology Selection ◽  
Power Sector ◽  
Clean Coal ◽  
Generation Structure ◽  
Generation Technology ◽  
Igcc Power Plant

The process of technology management contains various stages, such as the identification, selection, acquisition, implementation, and maintenance of technologies. In the case of power generation companies, a key aspect of the selection stage is the choice of generation technologies for newly commissioned units. The investment decision depends on many factors, primarily economic, environmental, social, technological, and legal, and represents a complex multi-criteria problem. Currently, the decision is further complicated by the often unpredictable tightening of environmental standards, forcing the closure of conventional sources, on which many countries have so far based their energy security. The paper analyzes the problem of choosing one of the so-called clean coal technologies to be implemented in conditions of transformation of the power sector. In this paper, five selected clean coal technologies are characterized, and the SMART method is adopted to technology selection. The following technologies were considered: supercritical coal-fired power plant (with and without CCS), IGCC power plant (with and without CCS), and IGCC power plant with CCS and integrated hydrogen production. Nine practical criteria (in three main groups: environmental, technological, economic) for comparing technologies are defined, computational experiments performed, and conclusions from the research presented. The work was based on the literature study of multi-criteria decision support and an analysis of power sector needs based on the example of the Polish power sector. The conducted research, apart from the technology recommendation, led to the conclusion that the chosen method may be applied to decision-making in the field of power generation technology management. The study also indicated the potential direction of the development of a power generation structure in a situation where a component of ensuring energy security is the use of available coal fuels.

Solar Chimney Power Plant - A Review on Latest Technological Advances for Performance Enhancement

2021 ◽  
Vol 9 (VI) ◽  
pp. 2434-2443
Author(s):  
Sreelekha Arun
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Performance Enhancement ◽  
Mechanical Energy ◽  
Technological Advancement ◽  
Solar Chimney ◽  
Air Turbine ◽  
Power Generation Technology ◽  
Solar Chimney Power Plant ◽  
Generation Technology

The energy consumption on global scale is continuously increasing, resulting in rapid use of energy resources available. Solar chimney power generation technology hence began to get growing attention as its basic model needs no depleting resources like fossil fuels for its functioning but only uses sunlight and air as a medium. It takes the advantage of the chimney effect and the temperature difference in the collector that produces negative pressure to cause the airflow in the system, converting solar energy into mechanical energy in order to drive the air turbine generator situated at the base of the chimney. Solar Chimney Power Plant (SCPP) brings together the solar thermal technology, thermal storage technology, chimney technology and air turbine power generation technology. However, studies have shown that even if the chimney is as high as 1000 m, the efficiency achievable is only around 3%. Hence, this review paper intents to put together the new technological advancement that aims to improve the efficiency of SCPP.

scholarly journals Driving Factor Analysis of Carbon Emissions in China’s Power Sector for Low-Carbon Economy

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Dan Yan ◽  
Yalin Lei ◽  
Li Li
Keyword(s):  
Power Generation ◽  
Carbon Emissions ◽  
Electricity Consumption ◽  
Least Squares Regression ◽  
Low Carbon ◽  
Power Sector ◽  
Stirpat Model ◽  
Coal Consumption ◽  
Low Carbon Economy ◽  
Generation Structure

The largest percentage of China’s total coal consumption is used for coal-fired power generation, which has resulted in the power sector becoming China’s largest carbon emissions emitter. Most of the previous studies concerning the driving factors of carbon emissions changes lacked considerations of different socioeconomic factors. This study examines the impacts of eight factors from different aspects on carbon emissions within power sector from 1981 to 2013 by using the extended Stochastic Impacts by Regression on Population, Affluence and Technology (STIRPAT) model; in addition, the regression coefficients are effectively determined by a partial least squares regression (PLS) method. The empirical results show that (1) the degree of influence of various factors from strong to weak is urbanization level (UL) > technology level (T1) > population (P) > GDP per capita (A) > line loss (T2) > power generation structure (T3) > energy intensity (T4) > industry structure (IS); (2) economic activity is no longer the most important contributing factor; the strong correlation between electricity consumption and economic growth is weakening; and (3) the coal consumption rate of power generation had the most obvious inhibitory effect, indicating that technological progress is still a vital means of achieving emissions reductions.

scholarly journals LEGAL PERSPECTIVES ON NUCLEAR ENERGY AND SUSTAINABLE DEVELOPMENT IN MALAYSIA

2020 ◽  
Vol 5 (1) ◽  
pp. 169-188
Author(s):  
Farahdilah Ghazali ◽  
Abdul Haseeb Ansari ◽  
Maizatun Mustafa ◽  
Wan Mohd Zulhafiz Wan Zahari
Keyword(s):  
Power Generation ◽  
Sustainable Development ◽  
Developing Countries ◽  
Energy Security ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Atomic Energy ◽  
Nuclear Power Generation ◽  
Power Sector ◽  
Energy Agency

This paper explores the potential of nuclear energy, particularly in the power sector, to solve energy challenges and to address the pertinent issues regarding energy sustainability in Malaysia. The deployment of nuclear energy in various developed and developing countries has conspicuously helped sustaining energy security and sustainability due to its compatibility and protection of the environment. In addition to energy security, nuclear energy also offers significant benefits to socio-economic aspects. Thus, nuclear energy in developing countries, including Malaysia, has the potential to emerge as a new prospect in the energy sector using sophisticated technology and expert personnel to maximize the energy benefits with the least environmental risk. This step would certainly meet future energy demands and help accelerate the country’s development with optimum energy generation in the country. Therefore, Malaysia should aim to resort to nuclear power generation whereby the current power sector is mainly generated by traditional means, with only a small fraction of it being renewable energy. With no experience in this field, Malaysia needs to establish collaboration with some country rich with nuclear-resource in order to build, maintain nuclear reactors and treat nuclear wastes. The development of such facility should also comply with the requirements of the International Atomic Energy Agency. Moreover, Malaysia has to introduce legislation and policies related to future nuclear energy. Thus, this paper discusses some of the pertinent issues related to the prospects of nuclear power generation in the country towards achieving Sustainable Development Goals (SDGs).   Keywords: Atomic energy, energy security, governance, sustainable development.   Cite as: Ghazali, F., Ansari, A. H., Mustafa, M., & Wan Zahari, W. M. Z. (2020). Legal perspectives on nuclear energy and sustainable development in Malaysia. Journal of Nusantara Studies, 5(1), 169-188. http://dx.doi.org/10.24200/jonus.vol5iss1pp169-188

scholarly journals Assessment of Power Generation Using Biogas from Landfills in an Equatorial Tropical Context

2020 ◽  
Vol 12 (7) ◽  
pp. 2669 ◽  
Author(s):  
Antonio Barragán-Escandón ◽  
Jonathan Miguel Olmedo Ruiz ◽  
Jonnathan David Curillo Tigre ◽  
Esteban F. Zalamea-León
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power Plant ◽  
Mathematical Models ◽  
Electricity Generation ◽  
Biogas Production ◽  
Production Potential ◽  
Attractive Option ◽  
Traditional Technologies ◽  
Generation Technology

This work evaluates the biogas production potential of the Ceibales landfill for feeding a power plant in the southern region of Ecuador. Biogas production is estimated through mathematical models that consider energy generation and technologies available to supply electricity plants. Characteristic landfill data are accounted for to analyze and develop these mathematical models. Once the generation capability of each source is identified, a decision can be made on the most suitable electricity generation technology. A local model (Ecuadorian model) is applied to calculate the potential of biogas and is compared with other models commonly used for evaluating this type of project. This type of renewable energy is attractive because it produces electricity from waste; however, it is not an attractive option unless its application is encouraged, as hydro has been encouraged through the investment of taxpayer resources. Technologies require a boost to become profitable, and even more so if they compete with traditional technologies.

scholarly journals Application of Sludge Coupling Power Generation Technology in Coal-fired Power Plant

2021 ◽  
Vol 632 ◽  
pp. 042024
Author(s):  
Jinglong Liu ◽  
Shouen Wang ◽  
Jiaxin Wang ◽  
Fanjun Hou ◽  
Chuanjun Duan ◽  
...  
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Power Generation Technology ◽  
Generation Technology

Integration and Performance Assessment of Hydrogen Fired Combined Cycle Power Plant With PSA Process for CO2 Capture in a Pre-Combustion IGCC Power Plant

2012 ◽  
Author(s):  
Ashok D. Dave ◽  
Sina Rezvani ◽  
Ye Huang ◽  
David McIlveen-Wright ◽  
Neil Hewitt
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Gas Turbine ◽  
Coal Gasification ◽  
State Of The Art ◽  
Combined Cycle ◽  
Feed Composition ◽  
Shift Reaction ◽  
The Impact ◽  
Igcc Power Plant

The Pre-combustion IGCC Power Generation technology presents novel challenges in terms of gas turbine operation. The hydrogen-rich gaseous fuel has much higher heating value than conventional syngas. In a state of the art precombustion IGCC power plant, the fuel utilised in a gas turbine is generated on-site by a coal gasification unit followed by gas clean-up, water-gas (sour) shift reaction and CO2 sequestration. The Pressure Swing Adsorption (PSA) process is techno-economically promising option for separation of hydrogen from the syngas. However, the PSA process is inherently transient in nature. Performance of PSA process is dependent on the process configuration and various devised different PSA process configurations and reported the purity and recovery rate of hydrogen and carbon dioxide rich product gas streams. However, these process configurations published in literature are not directly adaptable to the state of the art pre-combustion IGCC power plant due to variations in the feed composition and condition. Moreover, the current research works have not addressed the impact of varying amount of hydrogen recovery on the power generation characteristics. Two important configurations of the PSA process are identified and their CAPEX is estimated.

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