Analysis on the Power Generation Scheme for Wide Speed Range Super/Hypersonic Air-Breathing Propulsion System

2018 ◽  
Author(s):  
Haowei Li ◽  
Bao Wen ◽  
Jiang Qin ◽  
Hongyan Huang
Keyword(s):  
Power Generation ◽  
Propulsion System ◽  
Air Breathing ◽  
Speed Range ◽  
Wide Speed Range

scholarly journals Dynamic Thermo-physical Characteristics of High Temperature Gaseous Hydrocarbon Fuel Thermal Power Generation for Regeneratively Cooled Hypersonic Propulsion System

2019 ◽  
Author(s):  
Qing Xu ◽  
Haowei Li ◽  
Yaoxun Feng ◽  
Xiaoning Li ◽  
Changming Lin ◽  
...  
Keyword(s):  
Power Generation ◽  
High Temperature ◽  
Working Conditions ◽  
Thermal Power ◽  
Hydrocarbon Fuel ◽  
Physical Characteristics ◽  
Propulsion System ◽  
Gaseous Hydrocarbon ◽  
Air Breathing ◽  
Hypersonic Propulsion

The aspirated hypersonic air-breathing propulsion system requires a large amount of power generation, but its special structure makes it impossible to adopt common power generation methods. The high-temperature gaseous hydrocarbon fuel thermal power generation (TPG) system was developed to solve the power generation problem for hypersonic air-breathing propulsion system. But off-design operating conditions of the hypersonic propulsion system results in a more complex process for both propulsion system and the TPG system. To better analyzing the dynamic thermos-physical characteristics of hypersonic airbreathing propulsion system considering thermal-mechanical coupling process among cooling/TPG system, a dynamic analytical model was developed, and the dynamic thermos-physical characteristics of TPG system under different off-design working conditions were conducted. It can be concluded from the analytical results that the dynamic process of thermos-physical characteristics shows a complex trend under the flight Mach number and fuel equivalence ratio off-design working conditions. Such complexity of dynamic characteristics brings difficulties in fuel supply for the propulsion system.

scholarly journals Design and Analysis of a Linear Memory Machine for Ocean Wave Power Generation

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5216
Author(s):  
Yulong Liu ◽  
Xiaodong Zhang ◽  
Shuangxia Niu ◽  
Weinong Fu ◽  
Xinhua Guo
Keyword(s):  
Power Generation ◽  
Cost Effective ◽  
Ocean Wave ◽  
Wave Power ◽  
Time Stepping ◽  
Speed Range ◽  
Slip Rings ◽  
Working Principle ◽  
Wide Speed Range ◽  
Wave Power Generation

In this paper, a permanent magnet (PM) linear memory machine is proposed for ocean wave power generation. A notable feature of this machine is its online tunable mnemonic flux. This enables it to operate efficiently in a wide speed range and makes it suitable for the variable-speed wave-power generation. Moreover, this machine has both the PMs and the windings arranged in its stator so that it does not need slip rings or brushes. The proposed machine is also robust and cost-effective because it has a simple translator of slotted steel. In this paper, the configuration and working principle of the linear memory machine are firstly introduced. The results of a parametric analysis are presented to investigate the effects of the proposed machine’s geometric parameters. The performance of the proposed machine is then analyzed using time-stepping finite element method (TS-FEM).

Performance comparison between waverider and wide-speed-range gliding vehicle based on CFD approaches

2019 ◽  
Vol 62 (10) ◽  
pp. 1861-1870 ◽  
Author(s):  
TianTian Zhang ◽  
ZhenGuo Wang ◽  
Wei Huang ◽  
XiaoTing Yan
Keyword(s):  
Performance Comparison ◽  
Speed Range ◽  
Wide Speed Range

Vector Control of Crosswise Saturating Five-Phase PMaSynRM in Wide Speed Range

2020 ◽  
Author(s):  
Tomasz Michalski ◽  
Fernando Acosta-Cambranis ◽  
Luis Romeral ◽  
Jordi Zaragoza ◽  
Gerardo Mino-Aguilar
Keyword(s):  
Vector Control ◽  
Speed Range ◽  
Wide Speed Range
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