TECHNO-ECONOMIC ANALYSIS OF IGCC POWER GENERATION SYSTEMS BASED ON FLUIDIZED BED GASIFIERS

1999 ◽  
Vol 23 (1B) ◽  
pp. 213-223
Author(s):  
A. Ong’iro ◽  
V.I. Ugursal ◽  
A.M. Al Taweel

A computerized techno-economic model that can be used to predict the thermal, environmental and economic aspects of integrated gasification combined cycles (IGCC) using fluidized bed gasifiers was developed. A brief description of the model is presented and representative applications of the model are demonstrated with a case study. The results verify the favourable characteristics of IGCC systems (i.e. high thermal efficiency, low levelized unit electricity cost, and reduced pollution emissions) and illustrate the effect of various parameters on the performance of IGCC power plants. Models for IGCC with moving bed and entrained bed gasifiers are presented elsewhere.

2020 ◽  
Vol 149 ◽  
pp. 336-346 ◽  
Author(s):  
Guiyan Zang ◽  
Jianan Zhang ◽  
Junxi Jia ◽  
Electo Silva Lora ◽  
Albert Ratner

Author(s):  
Alireza Refiei ◽  
Reyhaneh Loni ◽  
Gholamhassan Najafi ◽  
Evangelos Bellos ◽  
Mohsen Sharifpur ◽  
...  

Author(s):  
Mamoru Ozawa ◽  
Ryosuke Matsumoto ◽  
Hisashi Umekawa

Based on the increased attention to “energy security” and “sustainable development”, it is essential to promote clean use of coal as a fuel. Typical advanced technologies are demonstrated by the pressurized fluidized-bed combined cycle (PFBC) and integrated gasification combined cycle (IGCC). Focusing mainly on these two examples as the advanced energy conversion technology, related problems are reviewed. The PFBC technology is a composite technology of conventional fluidized bed and combined-cycle, in which ash, being a typical component of coal, is not melted but is removed mainly in the fluidized bed. On the other hand, the IGCC is much more complicated and ash removal is conducted by melting in the combustor. Heat released there is utilized for gasification process in the reductor installed just downstream the combustor. Even though both systems have very high potential for clean and efficient use of coal, the commercial plants are limited in a very small number or at the stage of just a demonstration plant. To extend and develop clean-coal technology in the electric power generation market, a strategy of the government on the energy technology as well as the long-term competition in the market are indispensable, otherwise related technologies as well as the engineers involved will be lost.


2004 ◽  
Vol 126 (1) ◽  
pp. 63-71 ◽  
Author(s):  
Anugerah Widiyanto ◽  
Seizo Kato ◽  
Naoki Maruyama

A deterministic quantitative model has been developed to compare the technical, economical and environmental feature of various electric power generating plants. The model, which is based on matrix operations, is used in evaluating the various aspects of energy sources available for electricity generation systems in a developing country. Several energy sources which could be considered for production of electricity to meet current and future electricity demands have been chosen. These will include fossil fuel fired, nuclear, and natural-renewable energy power plants. And, a set of criteria for optimized selection includes five area of concerns: energy economy, energy security, environmental protection, socio-economic development and technological aspects for the electric power generations. The model developed in this study is applied to the Indonesian’s electric power sector development. Most of the data required are obtained from various sources related to power industry in Indonesia, such as the electricity generating authority of Indonesia (Perusahaan Listrik Negara, PLN), Government of Indonesia, World Bank, Asian Development Bank, United Nations, and other sources, both in published and public domains. The result of this study will be a ranking of energy sources for Indonesia power generation systems based on the Euclidean composite distance of each alternative to the designated optimal source of energy.


Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5604
Author(s):  
Hookyung Lee ◽  
Minjung Lee

With the formation of an international carbon-neutral framework, interest in reducing greenhouse gas emissions is increasing. Ammonia is a carbon-free fuel that can be directly combusted with the role of an effective hydrogen energy carrier, and its application range is expanding. In particular, as research results applied to power generation systems such as gas turbines and coal-fired power plants have been reported, the technology to use them is gradually being advanced. In the present study, starting with a fundamental combustion research case conducted to use ammonia as a fuel, the application research case for gas turbines and coal-fired power plants was analyzed. Finally, we report the results of the ammonia-air burning flame and pulverized coal-ammonia-air co-fired research conducted at the authors’ research institute.


Author(s):  
James W. Culley ◽  
Philip Levine

Indirect firing of combined Brayton and Rankine cycles has been considered as a means of utilizing solid fuels such as wood or coal for power generation. Combined cycles utilizing indirect firing offer potentially higher efficiencies than conventional direct fired Rankine cycles. Many thermodynamic alternatives exist for indirect firing; however, technical, economic, and commercial barriers must be overcome for each of these alternatives. This paper reviews several of the options for indirect fired cycles and considers the factors affecting their application to power generation systems.


1975 ◽  
Vol 97 (3) ◽  
pp. 897-908 ◽  
Author(s):  
O. M. Griffin

The oceans and their environment have long been envisioned as renewable sources of energy. It is the purpose of this paper to assess the feasibility of drawing on the sea for power and to determine the extent to which the oceans are likely to serve future energy needs. A review is made of recent U. S. funding levels for the research and development of renewable energy sources during the fiscal years 1971–1975, and a study is made of the technical and environmertal acceptability status of tidal, wind, and sea thermal power generation systems. The estimated costs of these environmental power sources are compared with the prevailing power costs for nuclear and coal plants. On the basis of these comparisons, recommendations are made for a program of research and development culminating in the construction of prototype plants for wind and sea thermal power plants. Tidal power generation is found to be technically feasible but economically uninviting at present.


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