. The butter industry, prepared for the use of creameries, dairy students and pure food departments. Butter. 188 Pasteurization Regenerative Heaters and Coolers.—Some of the heaters and coolers are arranged on what is known as the regenerative principle. The inflowing cold cream is heated by the hot cream passing from the pasteurizer, and the outflowing hot cream is cooled by the cold cream flowing to the pasteurizer. The hot and cold cream tend to equalize their re- spective temperatures by passing in counter- current directions. M a n u f a c turers of these coolers claim that the regenerati
. The butter industry, prepared for the use of creameries, dairy students and pure food departments. Butter. 188 Pasteurization Regenerative Heaters and Coolers.—Some of the heaters and coolers are arranged on what is known as the regenerative principle. The inflowing cold cream is heated by the hot cream passing from the pasteurizer, and the outflowing hot cream is cooled by the cold cream flowing to the pasteurizer. The hot and cold cream tend to equalize their re- spective temperatures by passing in counter- current directions. M a n u f a c turers of these coolers claim that the regenerative principle effects a sav- ing of heat and cold amounting to 25 to 35 per cent of the fuel needed. Construction of Flash Pasteurizers.— Most of the contin- uous pasteurizers are constructed of copper with heavily tinned heating surface. Some of these pasteurizers are lined with Ger- man silver. From the standpoint of heat conductivity there is little choice between the two metals. Their efficiency is prac- tically equally high. The German silver has the advantage of preserving the brightness of its surface. In the copper-lined machine the tin coating soon wears off. This, however, is no serious objection as long as the copper surface is kept bright and no verdigris is permitted to form. The details of construction and of power transmission vary somewhat with the diff'erent types and makes of flash pasteur- izers. Their descriptions are usually furnished by the respective manufacturers of the machines. In the installation of flash pasteurizers the directions for the same, which accompany the machines, should be carefully. Figr. 24. Simplex regeneration pasteurizer Courtesy D. H. Burrell & Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunziker, Otto Frederick, b. 1873. La Grange, Ill. , The aut
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbutter, bookyear1920
