0

Full Content is available to subscribers

Subscribe/Learn More  >

A Novel Air-Air Heat Exchanger Design and Experimental Validation for Aero-Engines

[+] Author Affiliations
Yinlong Liu, Yanchen Fu, Haoran Huang, Jie Wen, Guoqiang Xu

Beihang University, Beijing, China

Paper No. IMECE2018-87169, pp. V08AT10A040; 10 pages
doi:10.1115/IMECE2018-87169
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 8A: Heat Transfer and Thermal Engineering
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5211-8
  • Copyright © 2018 by ASME

abstract

To meet the demand of thermal protection in aero engines, this paper presents a novel compact cross-flow air-air heat exchanger based on the Cooled Cooling Air (CCA) technology. This novel air-air heat exchanger consisting of 4 × 10 serpentine tubes (4.4 mm I.D., 5.0 mm O.D., stainless steel type 321) was designed using the classic Logarithmic Mean Temperature Difference (LMTD) method. Experimental verification has been done to research the hydraulic and heat transfer performance of the heat exchanger. The results show that the 1.48 kg serpentine tube air-air heat exchanger can cool the high pressure compressor bleeding air by 200 K at the mass flow rate of 0.05 kg/s using bypass duct cold air. Comparisons between calculated and experimental data have been done and good agreement between them was obtained in both flow resistance and heat transfer characteristics. Thus, the LMTD method could be well adopted in designing compact air-air heat exchanger for aero-engines. A new empirical heat transfer coefficient correlation for the tube outside is obtained using Wilson plot method, and it can be helpful designing heat exchanger with similar structures. This research is a great proof of CCA’s feasibility in terms of theory and practice.

Copyright © 2018 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In