Imperial College London
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Dr Joshua N. Rasera

Faculty of Engineering, Department of Earth Science & Engineering

Research Associate
 
 
 
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Contact

 

j.rasera

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rasera:2023:10.1016/j.pss.2023.105651,
author = {Rasera, JN and Cilliers, JJ and Lamamy, J-A and Hadler, K},
doi = {10.1016/j.pss.2023.105651},
journal = {Planetary and Space Science},
pages = {1--11},
title = {Experimental investigation of an optimised tribocharger design for space resource utilisation},
url = {http://dx.doi.org/10.1016/j.pss.2023.105651},
volume = {228},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Triboelectric charging and free-fall separation are attractive technologies for lunar mineral beneficiation. Here, an optimised tribocharger design was built and evaluated under terrestrial conditions. The charging behaviour of pure silica and ilmenite were tested using the optimised design, as were mixtures of silica and ilmenite, and samples of lunar regolith simulant JSC-1. Pure silica and ilmenite acquired negative and positive charge, respectively, through contact with the tribocharger. The tribocharger affected significantly the movement of the pure minerals in the electrostatic field. Results from the binary mixtures indicate that ilmenite recovery is independent of initial ilmenite concentration, and can be predicted from the mass distribution of pure ilmenite samples. For JSC-1, the tribocharger was found to increase the density of the material in certain collectors, indicating an upgrading of denser constituents. The optimised tribocharger design has a significant effect on the charging and separation performance.
AU  - Rasera,JN
AU  - Cilliers,JJ
AU  - Lamamy,J-A
AU  - Hadler,K
DO  - 10.1016/j.pss.2023.105651
EP  - 11
PY  - 2023///
SN  - 0032-0633
SP  - 1
TI  - Experimental investigation of an optimised tribocharger design for space resource utilisation
T2  - Planetary and Space Science
UR  - http://dx.doi.org/10.1016/j.pss.2023.105651
UR  - https://www.sciencedirect.com/science/article/pii/S003206332300020X?via%3Dihub
UR  - http://hdl.handle.net/10044/1/103022
VL  - 228
ER  -
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