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Engineering concepts for inflatable Mars surface greenhouses.

I Hublitz1, D L Henninger, B G Drake

  • 1Agricultural and Biological Engineering Department, University of Florida, Gainesville, FL 32611-0570, USA. inka@ufl.edu

Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|April 26, 2005
PubMed
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Operating greenhouses at low atmospheric pressure can significantly reduce mass and resource requirements for bioregenerative life support systems on Mars. This study evaluates the feasibility of low-pressure greenhouses using equivalent system mass analysis for various lighting methods.

Area of Science:

  • Space exploration engineering
  • Bioregenerative life support systems
  • Plant cultivation in space

Background:

  • Bioregenerative life support systems (BLSS) are crucial for long-duration space missions, particularly for Mars colonization.
  • Reducing system mass, volume, power, thermal, and crew-time demands is a primary design challenge for BLSS.
  • Greenhouse structural mass represents a significant portion of the total BLSS mass.

Purpose of the Study:

  • To investigate the feasibility of operating a greenhouse at low atmospheric pressure for a Mars bioregenerative life support system.
  • To assess the potential for mass savings in greenhouse structures under reduced atmospheric pressure.
  • To compare the performance of low-pressure greenhouses with high-pressure systems across different lighting strategies.

Main Methods:

Keywords:
NASA Center JSCNASA Discipline Life Support Systems

Related Experiment Videos

  • Utilized the method of equivalent system mass (ESM) for comparative analysis.
  • Evaluated greenhouse designs under both high and low atmospheric pressure conditions.
  • Assessed three distinct lighting methods: natural, artificial, and hybrid lighting.

Main Results:

  • Low-pressure operation offers a viable strategy for reducing greenhouse structural mass.
  • Equivalent system mass analysis indicates potential overall system mass reductions.
  • The feasibility and benefits vary depending on the lighting method employed.

Conclusions:

  • Operating greenhouses at low atmospheric pressure is a promising approach to reduce mass requirements for Mars BLSS.
  • Further research is needed to optimize lighting strategies for low-pressure greenhouse systems.
  • This concept contributes to the development of more sustainable and efficient life support for future space missions.