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Low Cost Glass-Ceramic Matrix Composites for Harsh Environment Heat Exchanger Applications


Title: Low Cost Glass-Ceramic Matrix Composites for Harsh Environment Heat Exchanger Applications

Authors: John Gangloff, Justin Alms, John Holowczak, John Needham, Paul Sheedy, Thomas Yun, Daniel Mosher John Podhiny, Brian Sullivan, James Haynes and Brian Jolly

DOI: 10.33599/nasampe/s.20.0221

Abstract: High-temperature, high-pressure heat exchange is a ubiquitous need in power generation, industrial components and aerospace systems, including supercritical CO2 cycles. In these applications, higher cycle temperatures and pressures provide a significant driver to overall thermal efficiency and fuel consumption as well as a challenge to metallic material capability. To enable operation in these harsh operating regimes, United Technologies Research Center (UTRC), Materials Research and Design (MR&D) and Oak Ridge National Laboratory (ORNL) are developing a high temperature, lightweight, low-cost heat exchanger technology made from a Glass-Ceramic Matrix Composite (GCMC) material system, denoted UT-16, which is capable of long operational life over a wide range of harsh environments. While this GCMC material system is broadly applicable to a variety of high temperature components, this effort focuses on the development and demonstration of a Counterflow Tube Heat Exchanger (CTHX). The CTHX geometry has been configured specifically for the GCMC material which can be fabricated orders of magnitude faster than most conventional CMCs. The as-fabricated material has extremely low porosity resulting in very low leakage rates and can also be coated with a chemically inert layer for additional protection.

References: 1. Prewo, K.M., Brennan, J.J., and Layden, G.K. “Fiber Reinforced Glasses and Glass-Ceramics for High Performance Applications.” Ceramic Bulletin 65(2) (1986): 305-313. 2. Brennan, J.J. “Interfacial Characteristics of Glass-Ceramic Matrix/SiC Fiber Composites.” Journal de Physique Colloques 49(C5) (1988): 791-809. 3. Brennan, J.J. “Interfacial Studies of Refractory Glass-Ceramic Matrix/Advanced SiC Fiber Reinforced Composites.” United States. Department of the Navy Office of Naval Research. Contract N00014-87-C-0699. Final Report R93-918246-6. 1993.

Conference: SAMPE 2020 | Virtual Series

Publication Date: 2020/06/01

SKU: TP20-0000000221

Pages: 9

Price: FREE

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