Operational tests of the BNL 24. 8 kW, 3. 8 K helium refrigerator

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The BNL 24.8 kW refrigeration system is completely installed and major portions of the acceptance tests have been completed. So far, the equipment tested has performed at or above design levels. The room temperature helium compressor station has been completely tested and accepted. The two-stage oil injected screw compressor system exhibited an isothermal efficiency of 57% while delivering a helium flow in excess of 4400 g/s. Data on the performance of the make-up gas cryogenic purifier is given. The refrigerator turbomachinery, 13 expanders and three cold compressors, has been tested at room temperature for mechanical integrity and control stability. The ... continued below

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Pages: 8

Creation Information

Brown, D.P.; Farah, Y.; Gibbs, R.J.; Schlafke, A.P.; Sondericker, J.H.; Wu, K.C. et al. January 1, 1985.

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Description

The BNL 24.8 kW refrigeration system is completely installed and major portions of the acceptance tests have been completed. So far, the equipment tested has performed at or above design levels. The room temperature helium compressor station has been completely tested and accepted. The two-stage oil injected screw compressor system exhibited an isothermal efficiency of 57% while delivering a helium flow in excess of 4400 g/s. Data on the performance of the make-up gas cryogenic purifier is given. The refrigerator turbomachinery, 13 expanders and three cold compressors, has been tested at room temperature for mechanical integrity and control stability. The first cooldown to operating temperature will be attempted in late August, 1985. 2 refs., 5 figs.

Physical Description

Pages: 8

Notes

NTIS, PC A02/MF A01.

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  • Cryogenic engineering conference and international cryogenic materials conference, Boston, MA, USA, 12 Aug 1985

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  • Other: DE85017851
  • Report No.: BNL-36949
  • Report No.: CONF-850814-9
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 5270824
  • Archival Resource Key: ark:/67531/metadc1071167

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1985

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 20, 2018, 7:43 p.m.

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Brown, D.P.; Farah, Y.; Gibbs, R.J.; Schlafke, A.P.; Sondericker, J.H.; Wu, K.C. et al. Operational tests of the BNL 24. 8 kW, 3. 8 K helium refrigerator, article, January 1, 1985; United States. (digital.library.unt.edu/ark:/67531/metadc1071167/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.