scholarly journals Customer system efficiency improvement assessment: Supply curves for transmission and distribution conservation options

1987 ◽  
Author(s):  
R.C. Tepel ◽  
J.W. Callaway ◽  
J.G. De Steese
Keyword(s):  
Efficiency Improvement ◽  
System Efficiency ◽  
Transmission And Distribution ◽  
Improvement Assessment

CFD-Analysis of Coverplate Receiver Flow

1996 ◽  
Author(s):  
Oliver Popp ◽  
Horst Zimmermann ◽  
J. Kutz
Keyword(s):  
Turbine Rotor ◽  
Geometrical Parameters ◽  
Receiver Design ◽  
Cfd Analysis ◽  
Efficiency Improvement ◽  
System Efficiency ◽  
Cfd Simulations ◽  
Air Supply ◽  
Cooling Air ◽  
Contour Design

The flow field in a preswirled cooling air supply to a turbine rotor has been investigated by means of CFD-simulations. Coefficients for system efficiency are derived. The influences of various geometrical parameters for different configurations have been correlated with the help of appropriate coefficients. For some of the most important geometrical parameters of the coverplate receiver design recommendations have been found. For the preswirl nozzles the potential of efficiency improvement by contour design is highlighted.

System efficiency improvement of IGCC with syngas clean-up

Energy ◽  
2018 ◽  
Vol 152 ◽  
pp. 75-83 ◽  
Author(s):  
Yi-Shun Chen ◽  
Shu-San Hsiau ◽  
Duan-You Shu
Keyword(s):  
Efficiency Improvement ◽  
System Efficiency

CFD Analysis of Coverplate Receiver Flow

1998 ◽  
Vol 120 (1) ◽  
pp. 43-49 ◽  
Author(s):  
O. Popp ◽  
H. Zimmermann ◽  
J. Kutz
Keyword(s):  
Turbine Rotor ◽  
Geometric Parameters ◽  
Receiver Design ◽  
Cfd Analysis ◽  
Efficiency Improvement ◽  
System Efficiency ◽  
Cfd Simulations ◽  
Air Supply ◽  
Cooling Air ◽  
Contour Design

The flow field in a preswirled cooling air supply to a turbine rotor has been investigated by means of CFD simulations. Coefficients for system efficiency are derived. The influences of various geometric parameters for different configurations have been correlated with the help of appropriate coefficients. For some of the most important geometric parameters of the coverplate receiver, design recommendations have been made. For the preswirl nozzles, the potential of efficiency improvement by contour design is highlighted.

scholarly journals Support Vector Machine for Photovoltaic System Efficiency Improvement

2020 ◽  
Vol 8 (3) ◽  
pp. 441-451 ◽  
Author(s):  
Maen Takruri ◽  
Maissa Farhat ◽  
Sumith Sunil ◽  
Jose A. Ramos-Hernanz ◽  
Oscar Barambones
Keyword(s):  
Support Vector Machine ◽  
Photovoltaic System ◽  
Support Vector ◽  
Efficiency Improvement ◽  
System Efficiency

Next Generation Oxy-Fired Systems: Potential for Energy Efficiency Improvement Through Pressurization

2009 ◽  
Author(s):  
Bruce R. Clements ◽  
Ligang Zheng ◽  
Richard Pomalis
Keyword(s):  
Ambient Pressure ◽  
Air Separation ◽  
Greenhouse Gas Mitigation ◽  
Efficiency Improvement ◽  
System Efficiency ◽  
Separation System ◽  
Power Requirement ◽  
Energy Efficiency Improvement ◽  
Auxiliary Power ◽  
Pressurized Combustion

Oxy-fired combustion has been identified as a key technology needed for greenhouse gas mitigation because it is capable of producing a concentrated CO2 stream suitable for sequestration. This technology as applied to pulverized coal systems has recently been brought to a near-commercial status with several key world-wide demonstrations. A barrier to its adoption has been the large additional auxiliary power required for oxygen production and CO2 compression which results in low overall system efficiency. There have been various strategies proposed to address these efficiency issues. A very promising concept is the use of pressurized combustion in order to increase the system efficiency. The use of pressure increases the power requirement of the air separation system. However, pressurization increases the boiler and steam side efficiencies while decreasing the power requirement for the CO2 compression system. The use of pressure will also affect the performance and size of each piece of equipment within the system. This paper describes the efficiency benefit of using pressure as compared with a baseline ambient pressure oxy-fired system and a typical air-fired system. The technical aspects of various system layouts are presented, the overall efficiency is evaluated and the merits of specific configurations are discussed. Design issues of equipment associated with the fuel supply, furnace, ash removal, heat transfer and flame moderation systems are presented.

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