F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
126/14, 161/39
F24H 7/00 (2006.01) C09K 5/06 (2006.01)
Patent
CA 1183447
METHOD AND APPARATUS FOR INOCULATING CRYSTALLIZATION SEEDS INTO A LIQUID LATENT HEAT STORAGE SUBSTANCE Abstract of the Disclosure Method and apparatus for inoculating a liquid latent heat storage substance of the type convertible to the solid state on cooling. A portion of the substance is caused to crystallize on a cooled active surface, immersed in the substance and preferably vertical, whereupon the active surface is heated to fuse-off the formed crystals to release same into the liquid portion of the storage substance to thus form inoculation seeds on which further crystallization of the storage substance takes place on withdrawal of heat from same. In one described embodiment, a pair of active sufaces is provided by using a Peltier element operating with a DC source having selectively reversible polarity whereby one surface is cooled down while the other is heated and vice versa, depending on instant polarity of the DC source. In another embodiment, the active surface is alternately heated and cooled by heat carrier medium of a heat pump circulation system drawn from the respective sections of the system in alternating fashion. Due to the formation of crystallization seeds from the heat storage substance, problems normally associated with the use of a foreign inoculation substance are avoided. Prior Art The invention relates to a method for inoculating or introducing crystal seeds into a liquid latent heat storage medium convertible to the solid state on cooling, and to an apparatus for carrying out the method. In liquid latent heat storage media of the type convertible to the solid state on withdrawal of heat, it is essential that at the withdrawal of heat crystal seeds
390651
Lindner Friedrich
Scheunemann Kurt
Deutsche Forschungs-Und Versuchsanstalt Fur Luft- Und Raumfahrt
Gowling Lafleur Henderson Llp
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