Extraterrestrial materials processing and related transport phenomenaSeveral concepts for significant cost reductions in extraterrestrial resource utilization are described. After an introduction of the desirability of in situ resource utilization, several candidate chemical processes are mentioned. It is brought out that many of the key processes require fluid dynamics and heat transfer processes under reduced- and microgravity. These aspects are discussed within the broad framework of a two-phase thermal control systems. Another important aspect of space processing is that reliability and self-repairability are mandatory; automation aspects are discussed. In addition to these general considerations, the paper includes several specific processes that vary from solid electrolytic production of oxygen from carbon dioxide, to plasma-augmented reactions for reducing ilmenite on the moon.
Document ID
19910036828
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ramohalli, K. N. R. (Arizona Univ. Tucson, AZ, United States)
Sridhar, K. R. (Arizona, University Tucson, United States)