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The Mini Pressurized Logistic Module (MPLM) of the International Space Station (ISSA) is foreseen for the transport of service equipment, experiment racks and service racks to the station. For the orbital operational phase it needs an Environmental Control and Life Support System (ECLSS) to make it commissionable for the astronauts. Because of its short mission time and the usage as a transport vehicle it has no completely autonomous ECLSS functionality. The Temperature and Humidity Control (THC) is supported by the Space Station via an Inter Module Ventilation Interface (IMV l/F). The MPLM ECLS has the requirement to suck revitalized air through the IMV l/F and mix it up with the recirculated air in order to provide a comfortable atmosphere in the MPLM habitable area. The fulfillment of the hydraulic and thermal requirements is verified by test and analysis. With this paper we provide the hydraulic analysis performed with ECOSIM, an ESA approved software tool.

Fuel cells have become a very important part of the energy supply in past, current and future space activities. In the past they have been used in the Gemini missions - their first application in space - and later in the Apollo programme. Fuel cells will be employed in future American, Russian and European space vehicles where significantly larger electrical power generation is envisaged compared to early applications. This increased capacity is linked to a correspondingly larger amount of waste heat which must be managed in turn. Effective study of how best to accommodate such fuel cell systems into a space vehicle and of the impact on other subsystems - e.g. thermal control - requires a suitable simulation tool.