Session: 30-11 Testing 2 and Systems 2

Submission Number: 177580

Development and Experimental Progress of the HiGT-sCO2 Test Platform 

A versatile supercritical CO₂ (sCO₂) test platform, “HiGT-sCO₂”, has been designed and constructed in Shanghai by the Institute of Engineering Thermophysics (IET), Chinese Academy of Sciences (CAS) in the frame of a national major science and technology infrastructure project “High-Efficiency and Low-Carbon Gas Turbine Research Facility (HiGT)”, aiming at offering services to the international sCO₂ community. The HiGT-sCO₂ test platform provides four primary services: (1) thermodynamic cycle research at conditions of up to 600 °C and 24 MPa including simple recuperated Brayton cycle (SRBC), recompression Brayton cycle (RCBC), and trans-critical cycle (TCC); (2) performance testing of key components involving main compressor, re-compressor, expander, and printed circuit heat exchangers (PCHEs); (3) control-oriented dynamic testing by considering load regulation and parameter disturbances; (4) validation of advanced control strategies.

 A series of representative tests have been conducted based on the HiGT-sCO₂ test platform. The performance characteristics of the main compressor have been measured across a rotational speed range of 70% ~ 100% design value and mass flow rate up to 30 kg/s. The main compressor has been operated with various inlet densities. The overall thermodynamic performance of SRBC has been tested under various steady-state, part-load conditions, with the expander operating at a fixed rotational speed of 80% design value and inlet temperature of 400 ℃. The maximum net power output of the system is 1.55 MW up to now with an overall thermal efficiency of 25%.

Presenting Author: Xinyu Gong Institute of Engineering Thermophysics, Chinese Academy of Sciences

Presenting Author Biography: Mr. Gong is a research engineer at the Research Center for Energy and Power, Institute of Engineering Thermophysics, CAS. He currently serves as the field director of the HiGT-sCO2 test platform. His research focuses on experimental investigations of supercritical fluid energy systems, advanced testing methodologies and process control techniques.

Authors:

Xinyu Gong Institute of Engineering Thermophysics, Chinese Academy of Sciences
Bo Wang Institute of Engineering Thermophysics, Chinese Academy of Sciences. University of Chinese Academy of Sciences.
Yong Tian Institute of Engineering Thermophysics, Chinese Academy of Sciences. University of Chinese Academy of Sciences.
Chaohong Guo Institute of Engineering Thermophysics, Chinese Academy of Sciences. University of Chinese Academy of Sciences.
Zhigang Li Institute of Engineering Thermophysics, Chinese Academy of Sciences. University of Chinese Academy of Sciences.
Yuming Zhu Institute of Engineering Thermophysics, Chinese Academy of Sciences
Haisong Zhang Institute of Engineering Thermophysics, Chinese Academy of Sciences
Jia Yan Institute of Engineering Thermophysics, Chinese Academy of Sciences
Peng Jiang Institute of Engineering Thermophysics, Chinese Academy of Sciences
Nannan Zhang Institute of Engineering Thermophysics, Chinese Academy of Sciences
Haikun Ren Institute of Engineering Thermophysics, Chinese Academy of Sciences
Xiang Xu Institute of Engineering Thermophysics, Chinese Academy of Sciences