ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Unsteady Simulation Analysis on Air Environment Parameters Control of Manned Spacecraft
Received date: 2013-12-30
Revised date: 2014-03-26
Online published: 2014-04-18
Supported by
China Manned Space Engineering Special Project
In order to support crew reside, key air environment parameters of manned spacecraft should be controlled with index range using air environment control system which involves a number of design and operational parameters. In this paper, an unsteady simulation model of manned spacecraft air environment control is developed, including cabin sub module, crew sub module, pressure control sub module, temperature/humidity control sub module and CO2 removal sub module. Using this unsteady simulation model, air environment parameters varying trend as the crew metabolic level variation has been analyzed and performance of control system has been evaluated. According to the results, crew metabolic level could influence air environment parameters dramatically. Air environment parameters could be maintained within index range through regulating control system operational parameters. Furthermore, air environment parameters could not be analyzed separately due to non-negligible effects of air temperature to O2 partial pressure, CO2 partial pressure and relative humidity. The work in this paper is helpful to promote the process of design and improvement of the air environment control system of manned spacecraft.
JIN Jian , HOU Yongqing . Unsteady Simulation Analysis on Air Environment Parameters Control of Manned Spacecraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(11) : 2970 -2978 . DOI: 10.7527/S1000-6893.2014.0032
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