Browse Publications Technical Papers 2001-01-2363

Practical Scheduling Considerations of Waste Heat Reuse for a Mars Mission Advanced Life Support System 2001-01-2363

This paper builds on a steady-state investigation of waste heat reuse in an Advanced Life Support System (ALSS) for a Mars mission with a low degree of crop growth. In past studies, such a system has been defined in terms of technology types, hot and cold stream identification and stream energy content. The maximum steady-state potential for power and cooling savings within the system was computed via the Pinch Method. In this paper, the next step is taken toward achieving a pragmatic estimate of costs and savings associated with waste heat reuse in terms of equivalent system mass (ESM).
In this paper, the assumption of steady-state flows are discarded, and a proposed schedule is developed for activities that are of interest in terms of waste heat reuse. The advanced life support system for the Mars Dual Lander Transit Vehicle is the system of interest. Based upon results of previous applications of the Pinch Method, stream matches are suggested and the time dependence of hot and cold stream existence within the system are discussed.


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