Research Fields
In the research field of wind energy utilization, investigation has been carried out on three key aspects:
Research on advanced design technology of large and super large wind turbine blades
Research on innovative aerodynamic field of wind farm
Research on wind energy heat utilization technology based on advanced thermodynamic cycle
In the research field of aero engine, investigation has been carried out on four key aspects:
General design technology of engine
Research on the new type compressor
Research on the counter-rotating turbine
Research on the short annular combustor
Team Building
In the aspect of research team construction, the Center recruited 7 new staff in this year. Currently there are 37 faculty members, 19 of which have obtained senior professional title.
In the aspect of graduate education, 2 doctoral students and 3 postgraduates graduated in 2019. Currently there are 28 graduate students and 2 post-doctors.
Projects and Major Achievements
In 2019, the Center received 1 Strategic Priority Research Program of CAS ( CNY 8 million), 3 National key research and development plans ( CNY 4.32 million), 1 Key Basic Research Projects of Basic Strengthening Plan (CNY 26.07 million), 1 National Defense Science and Technology Innovation Zone (CNY 3.5 million), 1 National Defense Basic Research Program (CNY 0.7 million), 1 Basic Research Project of Gas Turbine and Aircraft Engine Special Project (CNY 4.05 million), 1 Director’s Special Fund (CNY 2.9 billion), 1 International Organization Employment Plan Project (CNY 10 thousand), 2 National Natural Science Foundation of China (CNY 0.48 million). Besides, the Center undertook another 34 projects and the research funding amounts to CNY 28.3553 million.
1. In the research field of wind energy, research on systemic applied basic scientific issues related to wind energy absorption, conversion, and transmission, such as wind turbine blades, wind farm, and wind energy heat utilization had been carried out.
In the aspect of wind turbine blades, the advanced aerodynamic, structural, load control and aero elastic design technologies for large wind turbine blades under the inland complex terrain conditions have been constructed, and applied to the development of 2MW blades. The main technical indicators reached international advanced levels. Compared with mainstream commercial blades, the annual power generation is increased by 2.18%; the weight is reduced by 3.7%, and the equivalent fatigue load of blade root is reduced by 7.62%;
In the field of wind farm, a high fidelity CFD method based on an advanced actuator line method and a new hybrid numerical scheme has been developed. Based on the simulation results of the CFD method, a Gauss Wake Model that accurately reflects the characteristics of the wake field has been proposed. Compared with foreign advanced levels, the wake prediction accuracy is improved by more than15%, which provides a key technical guarantee for the development of the smart wind farms.
In the aspect of wind energy heat utilization, in order to solve the major issues of clean heating in winter in northern China, the revolutionary clean energy technology concept for direct heating by wind energy is proposed. An efficient, highly reliable, and low-cost 100-kilowatt wind energy heating demonstration system has been developed. The system has a heating efficiency of more than 3.5, which can provide cold and heat sources for 5000m2 buildings. Compared with the traditional thermal systems, the cost is reduced more than 10%, filling gaps in domestic and foreign markets and leading the development of emerging wind and heat industries.
2. In the research field of aero engine, the development and verification of key technology have been carried out which aims at the prototypes of new principles of high thrust to weight ratio engine and new principles of hypersonic engine respectively.
In the aspect of new principles of high thrust-weight ratio aero-engine, the overall design technology of the counter-rotating structure engine has been broken through. The design process and experimental verification of the counter-rotating compressor, combustion chamber and counter-rotating turbine were completed as well as the integration and ignition test of the prototype. The principle of the new aerodynamic layout engines preliminary was certificated well.
In the aspect of new principles of hypersonic engine, the engine overall scheme of a new type of thermal cycle with counter-rotating compressor and counter-rotating turbine as the core is proposed, which breaks through the design of the wide-speed counter-rotating compressor and large-turn fuel-rich working medium counter-rotating turbine, and the test verification of counter-rotating compressor and counter-rotating turbine is completed, which fills gaps at home and abroad.
In the aspect of the construction of the aerospace engine test facility, a blow down turbine test method is established, and a high-load multi-stage counter-rotating turbine performance evaluation test is completed, which has been awarded the second prize for military scientific and technology progress. The high-speed dual-shaft counter-rotating compressor rotor stability adjustment test technology has been first broken through, and the high-load counter-rotating stamping compressor performance evaluation test has been completed. The scheme design and review of the combined dynamic high-altitude environment test rig has been accomplished, which is expected to form the Mach number 4, high-altitude 25km simulation capability in China, and the detailed design of the core equipment and engineering design of the whole test facility is beginning.
Patents and Paper
In 2019, 58 academic papers were published, among which 16 were indexed by SCI and 7 indexed by EI. 7 patents proposals were applied and 13 patents were authorized. 4 oral presentations and reports were given in international conferences.
Awards
The test technology of a blow down turbine test rig obtained the second prize of science and technology progress award of the people’s Liberation Army of China.
International Cooperation and Exchanges
Researchers went to Japan for academic exchange and cooperation, and attended the WESC 2019.
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