quasi-one-dimensional calculation model is established, in which Рthermophysical calculation model based on the RK-PR cubic equation of state and its mixing rules for high- Рtemperature cracked hydrocarbon fuel is constructed. Related calculation results show that peak value of Reynolds Рnumber in-creases toward exit of regenerative channel with increase of the incoming fuel mass flow, and convective Рheat transfer effect is enhanced. It also implies the inner diameter of regenerative channel is larger, convective heat Рtransfer coefficient gets smaller. When heat transfer length of channel is longer, temperature difference between fuel Рand channel wall is lower.РKey words: High temperature hydrocarbon fuel; Uncracked status; Flow and heat transfer ; Chemically recuperation Рgas turbine