DETERMINAÇÃO EXPERIMENTAL DO COEFICIENTE DE TROCA DE CALOR EM UM GERADOR DE PASTA DE GELO / EXPERIMENTAL DETERMINATION OF THE HEAT TRANSFER COEFFICIENT IN AN ICE SLURRY GENERATOR

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

New ice crystal slurry thermal energy storage (TES) system has been developed for both HVAC and process cooling applications. The system uses an orbital rod evaporator (ORE), a vertical shell-and-tube heat exchanger with mechanical heat transfer augmentation, as a dynamic ice maker to generate liquid ice. Ice forms continuously without accumulation in the ORE and is compatible with conventional condensing units, storage tanks, and pumps. Dilute glycol or inorganic brine solutions promote formation of ice crystals, and the resulting liquid ice may be pumped or gravity fed to a storage tank. The cooling load circuit can be hydraulically decoupled from ice production at the storage tank. Stored liquid ice provides consistently low solution supply temperatures over significant portions of the ice melt period and may be melted very rapidly. With its characteristic high evaporator temperatures and high heat fluxes, ORE TES systems have the potential for significantly lower capital and operating costs than static ice or ice harvesting technologies.

ASSUNTO(S)

evaporador de pelicula descendente ice crystal slurry evaporador de haste orbital orbital rod evaporator thermal energy storage armazenamento de energia termica falling film evaporator pasta de cristais de gelo

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