Research Fields
Fundamental research, RD&D of advanced energy and power transformation technology and system. The construction of High-Efficiency and Low-Carbon Gas Turbine Research Facility for the national major science and technology infrastructure project.
Research Directions:
1. Heavy-duty Gas Turbine
2. Advanced fuel conversion
3. Advanced Power Cycle and Energy & Power System
Team Building
Currently, the center has 44 employees, including 4 research professors, 19 associate research professors; 33 graduate students including 16 pursuing a doctorate and 17 pursuing a Master’s degree. The University of Chinese Academy of Sciences granted Ph.D. degree to two students and Master degree to four students in 2021.
Projects and Major Achievements
The center undertook the national major science and technology infrastructure project “High-Efficiency and Low-Carbon Gas Turbine Research Facility” and led the basic research project of national “aero-engine and gas turbine” major project, named “the fundamental research on wet gas turbine cycle technology” and “Combustion mechanism and verification of coal to fuel gas in IGCC heavy duty gas turbine combustor”.
For gas turbine combustion, research on multi-fuel micro-mix combustion mechanism, characteristics and combustion chamber design has been carried out, revealing the flame stabilization mechanism of micro-mix flames; pure hydrogen fuel micro-mix combustion with NOx <10 ppm@1920 K has been realized on the concept burner; a natural gas micro-mix combustion chamber scheme has been formed, and a single-cylinder combustion chamber test study is underway. A multi-nozzle array model burner was designed based on the concept of MILD combustion high-speed jet induced flue gas reflux, and the flame stabilization mechanism of the burner was verified by a combination of PIV experiments and numerical simulations. The self-developed hydrogen-rich fuel combustion chamber has operated safely and stably for more than 5,000 hours on the AGT-25 gas turbine, and the design and testing of the natural gas-coke-oven gas dual-fuel nozzle for the 6B combustion chamber have been completed, and the installation has been completed and field commissioning is in progress.
Regarding advanced fuel conversion, the universal estimation equations on energy barriers were established based on DFT calculations using 6-31G. Using the existed BMCP model coupled with the energy barriers of the induction reactions, the pyrolysis behaviors of four alkylbenzenes were quantitatively predicted, and quantum chemistry calculations can be combined with meso-scale calculation on covalent bonds. The activation energies of the carbon dioxide carriers under different cycles were obtained using iso-conversional method to avoid the errors caused by the selection of the reaction models, and the rate-determining step of the different stage during calcination of the carrier can therefore be determined.
With respect to advanced power cycle and energy & power system, we proposed an improved one-dimensional design method of axial flow turbine considering cooling and a one-dimensional turbine performance analysis method that enables the assessment of chocked flow up to limit load. A preliminary design method for a heavy-duty gas turbine considering cooling was developed based on the one-dimensional component design method. The specific form of general characteristic curve for sCO2 compressor was studied and improved, and sCO2 compressor with two ends supported was designed. A cooling structure optimization design method for high energy density sCO2 turbine was developed. The self-developed two-stage sCO2 centrifugal compressor has been experimentally tested and its performance has reached the design target. The construction of megawatt-level sCO2 Brayton cycle experimental unit has been completed and the commissioning stage started. In terms of water heat recovery for flue gas, the engineering design of water recovery test demonstration device with the capacity of 10000 m3/h flue gas treatment was completed. The test demonstration device is under construction.
The national major science and technology infrastructure project “High-Efficiency and Low-Carbon Gas Turbine Research Facility”: We completed the detailed design of compressor test platform, the bidding procurement and key design of compressor test article. We finished the joint commissioning of CTF#1 test rigs of the combustion chamber test platform based on existing air sources. We completed the detailed design of CTF#2 combustion chamber test platform, and the bidding procurement of key equipment. The detailed design of the turbine test platform was completed, and the bidding procurement of key equipment was completed. We completed the bidding procurement of gas turbine for efficient cycle test rig, of expansion work system, heating system, regenerative cooling system, auxiliary equipment procurement and test rig installation and commissioning for low-carbon sCO2 cycle test rig. Completed the main engineering design of low-carbon sCO2 cycle test rig, checked and reviewed the design schemes of main compressor, expansion work system, heating system and regenerative cooling system. Completed the scheme design of regenerator of efficient cycle test rig.
Technology Transfer
The center worked together with Jiangsu province, Lianyungang city and Shanghai city to promote the supporting engineering construction and detailed design of the national major science and technology infrastructure project “High-Efficiency and Low-Carbon Gas Turbine Research Facility”. The Center signed 2 contracts with enterprises, with a funding of CNY 19.4 million.
Patents and Paper
Throughout the year, 19 papers were published including 9 indexed by SCI and 5 indexed by EI; 8 invention patents were applied for, 5 invention patents and 3 utility model patents were authorized, and 3 software copyrights were authorized.
International Cooperation and Exchanges
The center continued to promote substantial cooperation with US members of U.S.-China Clean Energy Research Center on Advanced Coal Technology Consortium (CERC-ACTC) and of U.S.-China Clean Energy Research Center on Energy and Water Track (CERC-WET).
The center participated 2 international cooperation projects supported by the Ministry of Science and Technology, called “Carbon capture, storage, utilization, demonstration and new generation of technology development” and “key technologies of energy and water bond and efficient green utilization” respectively. Joint team carried out research on kinetics of key processes of coal gasification based on calcium absorbent, efficient and water-saving IGCC/IGFC power plants, water and heat simultaneous recovery technology.
Center researchers participated in the Asian Congress on Gas Turbines 2020 (ACGT 2020) on line and presented papers.
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