Publication Date:
2019-06-28
Description:
Alkali metal/alkali-halide mixtures proposed for preventing solid buildup during energy recovery. When mixture melts (by absorption of heat of fusion), it forms two immiscible liquids. Salt-rich phase is heavier and has higher melting/recrysallization temperature; so during energy recovery salt crystallizes in this phase first. Since heat exchanger for energy recovery is in lighter metal-rich phase, solids do not form and there is no reduction of heat-recovery efficiency.
Keywords:
PHYSICAL SCIENCES
Type:
NPO-15318
,
NASA Tech Briefs (ISSN 0145-319X); 7; 1; P. 26
Format:
text