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Carbon Fiber Heat Exchanger for Gas Quench of Microgravity Samples
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English
Abstract
Current and future microgravity studies in space based material science research call for rapid quenching of samples to permit microscopic examination of crystal structure, composition and growth dynamics. The conventional quench method, water spray, presents re-supply and consumables (weight, volume), safety, and recovery issues (water cannot be dumped on certain missions); therefore new techniques are sought.
This work investigates a quench concept in which a gas quenchant is used in a small scale pin fin heat exchanger consisting of thermally conductive carbon fibers mounted on the sample cartridge and mounted normal to the surface. Analysis is presented for conditions including those relevant for microgravity crystal growth, where this type of heat exchanger is a viable candidate.
Authors
Citation
Westra, D. and Knowles, T., "Carbon Fiber Heat Exchanger for Gas Quench of Microgravity Samples," SAE Technical Paper 972384, 1997, https://doi.org/10.4271/972384.Also In
References
- High Gradient Furnace with Quench (HGFQ) Phase A/B Final Report HGFQ Product Development Team NASA Marshall Space Flight Center July 1996
- Incroperera, Frank P. DeWitt, David P. “Fundamentals of Heat and Mass Transfer.” 2nd 1985
- Gerhart, Philip M. Gross, Richard J. “Fundamentals of Fluid Mechanics.” 1985
- Reynolds, W.C. “Thermodynamic Properties in SI” Department of Mechanical Engineering, Stanford University 1979