ESM Analysis of BioSim Configurations Izaak Neveln General Engineering University of Illinois Advisors: Haibei Jiang Professor Luis Rodriguez

Overview  Define ESM  BioSim configurations  Research Method  Results  Conclusions and improvements

The Mystery ShuttleLunar? Mars?

Equivalent System Mass (ESM)‏  Proxy for system cost  Simplifies various aspects of system into single metric  Volume, Power, Cooling, and Crewtime all converted to mass value with equivalence factors.  Ex. Nuclear Reactor is 1500 kg and produces 3 kW P eq = (1500 kg) / (3 kW) = 500 kg/kW

BioSim Configuration  eXtensible Markup Language (XML)‏  Creates system components  Defines store and flow-rate values  Additional attributes (failure and perturbation)‏  Creates crew and defines crew activity

The Solution  BioSim can determine system reliability  How long does the crew last?  ESM analysis can determine system cost  An ESM calculator integrated with BioSim could give insight to the values on the mission length vs. cost graph

But How?  Two Options  XML interpreter for NASA's Excel and Visual Basic derived Advanced Life Support Sizing Analysis Tool (ALSSAT)‏  Coding of a new JAVA based tool

ALSSAT Courtesy of NASA

ESMcalc Interface for JAVA based ESMcalc. Currently has inputs for mission length and type, and takes all XML configuration values into consideration.

Does it perform? A = ALSSAT B = ESMcalc CM = Crewmembers Lunar Surface Mission 100 days Varied Crew Size Partially Closed Based on Christian's water recovery system analysis configuration

Varied Mission Length A = ALSSAT B = ESMcalc -Mars Transit Mission -6 Crew Members -Varied Mission Length -Partially Closed -Crop Added Based on David's semi- closed baseline configuration

Slope Comparison

Conclusions  No way to physically test results  Trends are accurate with ALSSAT  Lower ESM was expected  Viable tool for comparing costs of BioSim configurations

Future Work  More tests to further validate the ESMcalc program  More complete statistical analysis with more data  Updating calculator with more accurate models  Give user more options for input and output of ESMcalc

Acknowledgements and Funding  Thanks to Haibei Jiang, David Kane, Christian Douglass, Scott Bell, and Professor Luis Rodriguez.  Funded by the NASA Illinois Space Grant Consortium, the Boeing Company, and NASA grant number NNJ06HA03G.

Questions?