The special issue of Journal of Thermal Science (JTS)is dedicated to the Asian Congress on Gas Turbines 2020(ACGT2020).ACGT is an international conference on advanced technologies of gas turbine,which was established in 2005 and held in turn by the Gas Turbine Society of Janpan (GTSJ),Korean Society for Fluid Machinery (KSFM),Chinese Society of Engineering Thermophysics (CSET),and India Institute of Technoloty Bomby (ⅡT Bombay) every two years.ACGT has been committed to providing an excellent communication platform for scholars and engineers in the field of gas turbines.