Use of cooling air heat exchangers as replacements for hot section strategic materials | Zendy

J. W. Gauntner | Zendy

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Use of cooling air heat exchangers as replacements for hot section strategic materials

Author(s) -

J. W. Gauntner

Publication year - 1983

Publication title -

nasa sti repository (national aeronautics and space administration)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1983-2540

Subject(s) - section (typography) , heat exchanger , copper in heat exchangers , high heat , nuclear engineering , materials science , mechanical engineering , plate fin heat exchanger , environmental science , computer science , engineering , plate heat exchanger , composite material , operating system

Because of financial and political constraints, strategic aerospace materials required for the hot section of future engines might be in short supply. As an alternative to these strategic materials, this study examines the use of a cooling air heat exchanger in combination with less advanced hot section materials. Cycle calculations are presented for future turbofan systems with overall pressure ratios to 65, bypass ratios near 13, and combustor exit temperatures to 3260 R. These calculations quantify the effect on TSFC of using a decreased materials technology in a turbofan system. The calculations show that the cooling air heat exchanger enables the feasibility of these engines. Previously announced in STAR as N83-34946

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