Conceptual design of a high efficiency large capacity hydrogen liquefier

2002 ◽  
Author(s):  
H. Quack
Keyword(s):  
Conceptual Design ◽  
High Efficiency ◽  
Large Capacity ◽  
Hydrogen Liquefier

scholarly journals Strategy and Technique of High Efficiency Balancing in Field for Turbo-Generator Units with Large Capacity

2021 ◽  
Vol 2101 (1) ◽  
pp. 012011
Author(s):  
Wenfang Cai ◽  
Songyuan Lu ◽  
Zhengfeng Wu ◽  
Guangyao Ying ◽  
Wenjian Wu
Keyword(s):  
High Efficiency ◽  
Large Capacity ◽  
Construction Period ◽  
Vibration Data ◽  
Influence Coefficients ◽  
Turbo Generator ◽  
Accurate Judgment ◽  
Key Techniques ◽  
Selection Of ◽  
Modal Method

Abstract Abstract.This paper aims at the high efficiency of field balancing for turbo-generator with large capacity currently, and introduces the strategies and key techniques of the rotor system balancing with practical cases of power plant in field. The acquisition, analysis and former processing of the original vibration data for balance calculation are included. Furthermore, they involve complete measuring points and conditions, accurate judgment for the types of unbalance exciting force and selection of stable vibration data, all these could reduce the blindness of balancing effectively. The strategies and techniques also contain the determination for axial plane of unbalance by the modal method, then the optimal steps and the plane of adding weight are chosen during the implementation of balancing. Besides, this paper also introduces the analysis and selection of influence coefficients and the phase of trial weight, these can help determine the final correction weight accurately in order to guarantee the balancing process prompt and efficient. Meanwhile, the restriction of practical location for adding weight and construction period of maintenance and production for the units should be considered during the high efficiency balancing in field. These strategies and techniques of high efficiency balancing have practical application value in promoting the technology of field balancing for turbo- generator units with large capacity.

High Efficiency Megawatt Motor Conceptual Design

2018 ◽  
Author(s):  
Ralph Jansen ◽  
Yaritza De Jesus-Arce ◽  
Peter Kascak ◽  
Rodger W. Dyson ◽  
Andrew Woodworth ◽  
...  
Keyword(s):  
Conceptual Design ◽  
High Efficiency

Synthesis and investigation of layered GeS as a promising large capacity anode with low voltage and high efficiency in full-cell Li-ion batteries

2017 ◽  
Vol 1 (8) ◽  
pp. 1607-1614 ◽  
Author(s):  
Yaqing Wei ◽  
Jun He ◽  
Qing Zhang ◽  
Chang Liu ◽  
Ameng Wang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Low Voltage ◽  
Coulombic Efficiency ◽  
Cell Voltage ◽  
Li Ion Batteries ◽  
High Cell ◽  
Lithium Storage ◽  
Large Capacity ◽  
Full Cell ◽  
Li Ion

Layered GeS shows a large capacity of 1768 mA h g−1 with a coulombic efficiency of 94% for lithium storage. With good stability and a low voltage in alloying region, the LiCoO2//GeS full cell exhibits both high cell voltage and large capacity.

The Large Capacity Pulverized Coal Fired Utility Boiler and the Low NOx Combustion Technology Developments in China in Response to Environmental Challenges

2011 ◽  
Author(s):  
Hao Zhou ◽  
Guiyuan Mo ◽  
Kefa Cen
Keyword(s):  
High Efficiency ◽  
Catalytic Reduction ◽  
Pulverized Coal ◽  
Large Capacity ◽  
Environmental Challenges ◽  
Utility Boiler ◽  
Integrated Technology ◽  
Combustion Technology ◽  
Low Nox Combustion ◽  
Scr System

Large capacity pulverized coal fired utility boiler technology is in quick developments in China, hundreds of super critical boilers have been constructed in the last several years which can achieve high efficiency and low pollutants emissions. The different types of super critical boilers are introduced in this paper, they include the single-furnace with double fireball corner fired furnace, the wall fired furnace and the tower-type furnace. The low NOx combustion technologies have been widely used to face the environmental challenges. The low NOx technologies employed in pulverized-coal boilers consist of the combustion modification and post-combustion technology. The low NOx combustion modification technology includes the low NOx burner, close coupled over fire air (CCOFA) and separated over fire air (SOFA). The post-combustion technology consists of selective non-catalytic reduction (SNCR) and selective catalytic reduction (SCR) technologies. Zhejiang University develops integrated low NOx technology, including the low NOx combustion system, SNCR system and SCR system. This integrated technology can reduce the NOx emissions to be lower than 50 mg/Nm3.

Technologies for high efficiency large capacity turbine generator

2009 ◽  
Author(s):  
Yoshihiro Taniyama ◽  
Takashi Ueda ◽  
Masafumi Fujita ◽  
Tetsushi Okamoto ◽  
Masanori Arata ◽  
...  
Keyword(s):  
High Efficiency ◽  
Turbine Generator ◽  
Large Capacity
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