Fuels for Advanced Power Generation Systems

1965 ◽  
Vol 87 (2) ◽  
pp. 125-147 ◽  
Author(s):  
S. Way ◽  
W. E. Young ◽  
I. S. Tuba ◽  
R. L. Chambers
Keyword(s):  
Power Systems ◽  
Bituminous Coal ◽  
Combustion Products ◽  
Gas Composition ◽  
Residual Oil ◽  
Mhd Generator ◽  
Product Gas ◽  
Conductivity Electron ◽  
Power Generation Systems ◽  
Steam Plant

This paper discusses the relative merits of various fuels for magnetohydrodynamic power systems in which the MHD generator operates on combustion products and is coupled with a steam plant or gas turbine. The method of calculating the equilibrium gas composition is first discussed, and results are then given for alkali seeded product gas compositions and properties for cases of bituminous coal, coke, natural gas, residual oil, and alcohol. Electrical conductivity, electron mobility, and attainable flame temperatures are evaluated. Fuels of low hydrogen content are shown to be advantageous, and it is shown to be desirable to introduce the alkali seed in a dry state.

scholarly journals Effect of biomass fuel ash and bed material on the product gas composition in DFB steam gasification

Energy ◽  
2021 ◽  
Vol 219 ◽  
pp. 119650
Author(s):  
K. Fürsatz ◽  
J. Fuchs ◽  
F. Benedikt ◽  
M. Kuba ◽  
H. Hofbauer
Keyword(s):  
Steam Gasification ◽  
Biomass Fuel ◽  
Gas Composition ◽  
Product Gas ◽  
Fuel Ash ◽  
Bed Material

Pyrolysis of Natural Gas: Effects of Process Variables and Reactor Materials on the Product Gas Composition

2019 ◽  
Vol 42 (3) ◽  
pp. 690-698
Author(s):  
Steven Wang ◽  
Woo Jin Lee ◽  
Chao'en Li ◽  
Benny Kuan ◽  
Nick Burke ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Composition ◽  
Process Variables ◽  
Product Gas ◽  
Reactor Materials

scholarly journals Hot Gas Filters for Coal and Biomass Power Systems

1999 ◽  
Author(s):  
R. A. Newby ◽  
T. E. Lippert ◽  
M. A. Alvin ◽  
G. J. Bruck ◽  
Z. N. Sanjana ◽  
...  
Keyword(s):  
Power Generation ◽  
Power Systems ◽  
Large Scale ◽  
Recent Progress ◽  
Environmental Constraints ◽  
Development Programs ◽  
Key Technology ◽  
Hot Gas ◽  
Filter Test ◽  
Power Generation Systems

Several advanced, coal- and biomass-based combustion turbine power generation technologies are currently under development and demonstration. A key technology component in these power generation systems is the hot gas filter. These power generation technologies must utilize highly reliable and efficient hot gas filter systems to protect the turbine and to meet environmental constraints if their full thermal efficiency and cost potential is to be realized. Siemens Westinghouse Power Corporation (SWPC) has developed a hot gas filter system to near-commercial status for large-scale power generation applications. This paper reviews recent progress made by SWPC in hot gas filter test development programs and in major demonstration programs. Two advanced hot gas filter concepts, the “Inverted Candle” and the “Sheet Filter”, having the potential for superior reliability are also described.

scholarly journals STEAM GASIFICATION OF SOME MONGOLIAN COALS

2017 ◽  
pp. 48-51
Author(s):  
Tungalagtamir B ◽  
Enkhtsetseg E ◽  
Chao Lumen ◽  
Narantsetseg M ◽  
Avid B ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Bituminous Coal ◽  
Steam Gasification ◽  
Coal Deposits ◽  
Gasification Rate ◽  
Product Gas ◽  
N2 Atmosphere ◽  
Carbon Dioxide Concentrations ◽  
Stainless Steel Reactor ◽  
Scale Reactor

The gasification tests for the Alagtolgoi and Ailbayan coal deposits were conducted in the temperature up to 850°C using bench scale reactor in order to evaluate product gas composition. Prior to the gasification experiments, the raw coal was pyrolysed in a stainless steel reactor under N2 atmosphere at a temperature of 500°C for 1 h. General behavior of the coal conversion was quite similar for both coals. The gasification tests show that an increase in temperature enhances the formation of hydrogen, carbon dioxide and carbon monoxide. The highest yield of hydrogen and carbon dioxide concentrations of the Ailbayan coal are achieved at temperature of 850°C, which were 2.859 mmol⋅g-1⋅min-1 and 1.054 mmol⋅g-1⋅min-1 respectively. However maximum rate of hydrogen for Alagtolgoi subbituminous coal reached around 800°C. Overall results show that the maximum gasification rate is reached earlier for subbituminous coal than for bituminous coal, but product gas evolution was higher for the investigated bituminous coal.

scholarly journals A 4-stroke spark-ignition engine fuelled with low quality gas

2017 ◽  
Vol 168 (1) ◽  
pp. 122-124
Author(s):  
Marek BRZEŻAŃSKI ◽  
Michał MARECZEK ◽  
Marek SUTKOWSKI ◽  
Wojciech SMUGA
Keyword(s):  
Power Generation ◽  
Power Systems ◽  
High Efficiency ◽  
High Reliability ◽  
Calorific Value ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
University Of Technology ◽  
Product Gas ◽  
Methane Number

Huge amount of by-products is still considered as waste and is simply disposed, for example by-product gas is usually flared. Political and social pressure to reduce air pollution and national needs for energy security make these waste fuels interesting for near-future power generation. Unfortunately most of these waste fuels, even when liquefied or gasified, have very low quality and can hardly be used in high-efficiency power systems. Among main challenges are low calorific value and composition fluctuation. Additionally very often there is a high content of sulphur, siloxanes, tars, etc., which have to be removed from the fuel. Modern 4-stroke gas engines designed for power generation applications provide very high efficiency, high reliability and availability. Unfortunately, these gas engines require high quality fuel with stable composition. Horus-Energia together with Cracow University of Technology developed a novel gas supply system HE-MUZG that can adapt to current gas quality and change engine settings accordingly.This article will present results from the HE-MUZG system tests on modern 4-stroke spark-ignition gas engine. Tests focus on low quality gas, such as gas with low calorific value, gas with very low methane number and gas with very big variations of calorific value. Test results compared with performance of that engine in the original configuration show huge improvements. Moreover the HE- MUZG system is easy to implement in commercial gensets.

scholarly journals Pulsed MHD generator of a new generation

2019 ◽  
Vol 486 (2) ◽  
pp. 178-183
Author(s):  
Ye. P. Velikhov ◽  
A. G. Afonin ◽  
V. G. Butov ◽  
V. P. Panchenko ◽  
S. V. Sinyaev ◽  
...  
Keyword(s):  
Theoretical Investigation ◽  
Specific Energy ◽  
First Generation ◽  
Magnetic System ◽  
Combustion Products ◽  
The Self ◽  
Mhd Generator ◽  
Local Integral ◽  
The Creation ◽  
New Generation

The results of calculation and theoretical investigation for the creation of a powerful (≈600 MW) pulsed MHD generator on the combustion products from solid (powder) plasma-forming fuel “Start-2” of a new generation are presented. The scheme, methods, results of calculations, and optimization of characteristics of the pulsed MHD generator with the self-excited resistive “iron-free” magnetic system are described. The local, integral, and specific energy and mass-dimensional characteristics are determined. The obtained characteristics are 1.5-2 times higher than those of the first generation MHD generator.

Comparison of by-product gas composition by activations of activated carbon

2019 ◽  
Vol 29 (3) ◽  
pp. 263-272 ◽  
Author(s):  
Gi Bbum Lee ◽  
Jung Eun Park ◽  
Sang Youp Hwang ◽  
Ji Hyun Kim ◽  
Seokhwi Kim ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Gas Composition ◽  
Product Gas

scholarly journals Turbomachinery Characteristics of Brayton-Cycle Space-Power-Generation Systems

1964 ◽  
Author(s):  
Milton G. Kofskey ◽  
Arthur J. Glassman
Keyword(s):  
Power Systems ◽  
Analytical Study ◽  
Design Parameters ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Cycle Space ◽  
And Performance ◽  
Power Outputs ◽  
Power Generation Systems ◽  
Space Power Systems

This paper presents the results of an analytical study of turbomachinery requirements and configurations for Brayton-cycle space-power systems. Basic turbomachinery requirements are defined and typical effects of such system design parameters as power, temperature, pressure and working fluid on turbomachinery geometry and performance are explored. Typical turbomachinery configurations are then presented for systems with power outputs of 10, 100 and 1000 kw.

Sign in / Sign up

Export Citation Format

Share Document