Hybrid Propulsion In-Situ Resource Utilization Test Facility Results

2015 ◽  
Author(s):  
Ashley C. Karp ◽  
Barry Nakazono ◽  
David Vaughan ◽  
William N. Warner
Keyword(s):  
Resource Utilization ◽  
Test Facility ◽  
Hybrid Propulsion

Hybrid Propulsion In-Situ Resource Utilization Test Facility Development

2014 ◽  
Author(s):  
Ashley A. Chandler ◽  
Corinne E. Gatto ◽  
Barry Nakazono ◽  
Kristian Grayson ◽  
David A. Vaughan
Keyword(s):  
Resource Utilization ◽  
Test Facility ◽  
Hybrid Propulsion

New approaches for Mars in-situ resource utilization based on the reverse water gas shift

1997 ◽  
Author(s):  
Robert Zubrin ◽  
Mitchell Clapp ◽  
Tom Meyer ◽  
Robert Zubrin ◽  
Mitchell Clapp ◽  
...  
Keyword(s):  
Resource Utilization ◽  
Water Gas Shift ◽  
New Approaches ◽  
Reverse Water Gas Shift ◽  
Water Gas

scholarly journals Pneumatic Regolith Transfer Systems for In Situ Resource Utilization

2010 ◽  
Author(s):  
Robert P. Mueller ◽  
Ivan I. Townsend, III ◽  
James G. Mantovani
Keyword(s):  
Resource Utilization

Damping in LMFBR Pipe Systems

1985 ◽  
Vol 107 (4) ◽  
pp. 366-372 ◽  
Author(s):  
M. J. Anderson ◽  
D. A. Barta ◽  
M. R. Lindquist ◽  
E. J. Renkey ◽  
J. A. Ryan
Keyword(s):  
Excitation Amplitude ◽  
Test Facility ◽  
Seismic Events ◽  
Seismic Loads ◽  
Modal Damping ◽  
Water Plant ◽  
Pipe Systems ◽  
Vibration Tests ◽  
Recent Laboratory

Liquid Metal Fast Breeder Reactor pipe systems typically utilize a thicker insulation package than that used on water plant pipe systems. They are supported with special insulated pipe clamps. Mechanical snubbers are employed to resist seismic loads. Recent laboratory testing has indicated that these features provide significantly more damping than presently allowed by Regulatory Guide 1.61 for water plant pipe systems. This paper presents results of additional in-situ vibration tests conducted on Fast Flux Test Facility pipe systems. Pipe damping values obtained at various excitation levels are presented. Effects of filtering data to provide damping values at discrete frequencies and the alternate use of a single equivalent modal damping value are discussed. These tests further confirm that damping in typical LMFBR pipe systems is larger than presently used in pipe design. Although some increase in damping occurred with increased excitation amplitude, the effect was not significant. Recommendations are made to use increased damping values for seismic events in design of heavily insulated pipe systems.

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