. Modern fruit marketing : a complete treatise covering harvesting, packing, storing, transporting and selling of fruit . Fruit trade. 93 MODERN FRUIT MARKETING unit of measure for heat is the calorie. This equals the heat required to raise one kilogram of water from zero to one degree Centigrade. Then, in measuring the transmission of heat through various insulating materials, calculations are based upon the number of B. T. U. that will pass through one square foot of substance per hour per degree, difference in temperature between the two sides of the substance. This enables definite experim
. Modern fruit marketing : a complete treatise covering harvesting, packing, storing, transporting and selling of fruit . Fruit trade. 93 MODERN FRUIT MARKETING unit of measure for heat is the calorie. This equals the heat required to raise one kilogram of water from zero to one degree Centigrade. Then, in measuring the transmission of heat through various insulating materials, calculations are based upon the number of B. T. U. that will pass through one square foot of substance per hour per degree, difference in temperature between the two sides of the substance. This enables definite experiments to be carried on and. Fig. 84.—CORK BOARD the insulating value of different materials can be def- initely determined. Substances which allow heat to pass through readily are known as good conductors of heat'. Those which retard the passage of heat are poor conductors. Hence, for insulating storage houses against heat and cold we always select poor conductors. Relative Heat-Conducting Power.—From a number of experiments that have been made both in the United States and Europe, the following figures have been taken. The relative insulating value of the different ma- terials are based on water as a standard. As physicists use water on a basis of one for the specific gravity of other liquids or solids, so in testing for insulating value. 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 Brown, Bliss S. , 1880-. New York : Orange Judd Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfruittrade, bookyear1
