Heat-Exchanger Design for Rocket-Borne Cryogenic Air Samplers
The acquisition of samples of the earth’s atmosphere has been important to scientists for many years. However, the techniques which have been available for this have had serious limitations. When a sampler is carried by an airplane or balloon, the sampling altitudes are limited, the sample can be contaminated, and the various constituents of the atmosphere may be preferentially collected. Past samplers which have been carried by rockets have been unable to collect large masses of atmosphere from high altitudes, some have contaminated the sample, and some have collected preferentially. The purpose of this paper is to discuss one of the design problems encountered in the development of a rocket-borne device that has collected large, whole, and uncontaminated samples of the atmosphere at high altitudes.
KeywordsHeat Exchanger Launch Vehicle Shell Diameter Tube Spacing Altitude Interval
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- 1.R. B. Bird, W. E. Stewart, and E. N. Lightfoot, Transport Phenomena, (2nd printing), John Wiley and Sons, New York (1962).Google Scholar
- 2.J. Hilsenrath et al., NBS Circular 564 (Nov, 1955).Google Scholar
- 3.L. E. Miller and C. E. Junge, in: Handbook of Geophysics, USAF Air Research and Development Command, The Macmillan Co., New York (1961), Ch. 8, Table 8–1.Google Scholar
- 4.J. C. Mullins, W. T. Ziegler, and. B. S. Kirk, “The Thermodynamic Properties of Oxygen from 20° to 100°K,” Tech. Rept. No.2, Proj. No. A-593, Georgia Institute of Technology, Atlanta, Ga. (Mar. 1962).Google Scholar
- 5.“U.S. Standard Atmosphere, 1962,” Prepared under the sponsorship of NASA, USAF, and USWB, US Government Printing Office, Wash., D.C. (Dec. 1962).Google Scholar
- 6.W. T. Ziegler, J. C. Mullins, and B. S. Kirk, “Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids, Especially below One Atmosphere Pressure. II. Argon,” Tech. Rept. No. 2, Proj. No, A-460, Engineering Experiment Station, Georgia Institute of Technology, Atlanta, Ga. (June 1962).Google Scholar
- 7.W. T. Ziegler and J. C. Mullins, “Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids, Especially below One Atmosphere. IV. Nitrogen and Fluorine,” Tech. Rept. No. 1, Proj. No. A-663, Engineering Experiment Station, Georgia Institute of Technology, Atlanta, Ga. (Apr. 1963).Google Scholar
- 8.G. P. Bergeiin, G. A. Brown, and S. C. Doberstein, Trans. ASME, 74:953 (Aug. 1952).Google Scholar
- 9.E. R. G. Eckert and. R. M. Drake, Jr., Heat and Mass Transfer, (2nd printing), McGraw-Hill Book Co., Inc., New York (1959), p. 242.Google Scholar
- 11.“Equations, Tables and Charts for Compressible Flow,” NACA rept. 1135, Ames Research Staff (1953).Google Scholar