Reduced heat flow in light water (H2O) due to heavy water (D2O)

Details Reduced heat flow in light water (H2O) due to heavy water (D2O) Reduced heat flow in light water (H2O) due to heavy water (D2O)

2008-09-04

arxiv.org/abs/0809.0831v1

Appl. Phys. Lett. 93, 034101 (2008)

Physics

Condensed Matter

Soft Condensed Matter

18 pages, 22 figures, PDF

Scientific paper

10.1063/1.2958917

The flow of heat, from top to bottom, in a column of light water can be decreased by over 1000% with the addition of heavy water. A column of light water cools from 25 C to 0 C in 11 hours, however, with the addition of heavy water it takes more than 100 hours. There is a concentration dependence where the cooling time increases as the concentration of added (D2O) increases, with a near maximum being reached with as little as 2% of (D2O) added. This phenomenon will not occur if the water is mixed after the heavy water is added.

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