Abstract
An Advanced Sorption Charcoal Compressor Element (ASCCE) has been designed, fabricated and tested at Aerojet. ASCCE consists of a cylindrical compressor volume filled with adsorbent charcoal disks, a heat exchanger, and a heater assembly. Designed for use in a high efficiency regenerative sorption cryocooler, ASCCE incorporates an advanced design of the sorbent bed heat exchanger with design features that enhance heat transfer while minimizing thermal mass. ASCCE was developed as a prototype compressor element for the multi-element regenerative compressor assembly of a two stage 125 K sorption cryocooler, in which the benefits of regeneration and high performance sorbent material (Saran charcoal) are combined. ASCCE testing included: (i) a thermal conductance test with the compressor evacuated; (ii) argon capacity tests; (iii) krypton capacity tests; and (iv) krypton kinetics tests. A SINDA thermal model of ASCCE was correlated to the thermal test data. The measured charcoal capacity agrees with existing isotherm measurements. The test results have provided a foundation for the design of Aerojet’s two stage, 125 K sorption cryocooler. Compressor performance correlations from the ASCCE testing were used to size the two stage cryocooler compressor elements. Several design improvements, fabrication and handling techniques, and gas loading procedures developed during the ASCCE testing were incorporated into the two stage cooler development plan.
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© 1995 Springer Science+Business Media New York
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Alvarez, J.A., Krylo, R.J., Snapp, R.D., Weston, C., Sywulka, P., Abell, G.C. (1995). Development of an Advanced Sorption Compressor and Its Application in a 125 K Cryocooler. In: Ross, R.G. (eds) Cryocoolers 8. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9888-3_58
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DOI: https://doi.org/10.1007/978-1-4757-9888-3_58
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