Engineering topics

Cairns, E. J.

Publications and source records attributed to Cairns, E. J..

5 records

NASA NTRS1973

Research on oxygen recovery systems for use in space capsules

An improved electrochemical process was investigated for the recovery of oxygen from the atmospheres of manned space capsules. The objective of the proposed system is to recover the oxygen from CO2 with high efficiency and to recover the additional amount of oxygen from water that is required to provide a total oxygen makeup stream of about 2.0 lb/man-day. The carbon from the CO2 must be converted into a readily disposable or usable form. The results are given of initial experiments with a porous stainless steel cathode in a LiCl-KCl electrolyte with small additions of oxide, carbonate, and hydroxide.

Selman, J. R.↗

NASA NTRS1969

Analysis of secondary cells with lithium anodes and immobilized fused-salt electrolytes

Secondary cells with liquid lithium anodes, liquid bismuth or tellurium cathodes, and fused lithium halide electrolytes immobilized as rigid pastes operate between 380 and 485 degrees. Applications include power sources in space, military vehicle propulsion and special commercial vehicle propulsion.

Cairns, E. J.↗

NASA NTRS1969

Analysis of cell performance and thermal regeneration of a lithium-tin cell having an immobilized fused-salt electrolyte

Cell performance and thermal regeneration of a thermally regenerative cell uses lithium and tin and a fused-salt electrolyte. The emf of the Li-Sn cell, as a function of cathode-alloy composition, is shown to resemble that of the Na-Bi cell.

Cairns, E. J.↗

NASA NTRS1969

Technical report on galvanic cells with fused-salt electrolytes

Technical report is presented on sodium and lithium cells using fused salt electrolytes. It includes a discussion of the thermally regenerative galvanic cell and the secondary bimetallic cell for storage of electricity.

Cairns, E. J.↗

NASA NTRS1968

Lithium-tellurium bimetallic cell has increased voltage

Lithium-tellurium secondary cell with a fused lithium halide electrolyte, tested in the temperature range 467 degrees to 500 degrees C, showed improvement over the sodium bismuth cell. The voltage of this bimetallic cell was increased by using the more electropositive anode material, lithium, and the more electronegative cathode material, tellurium.

Cairns, E. J.↗