. Electric railway journal . c r B T- *» .i^ ^^^B- 1^21 H I ipi 1 I m m M n^. March 20, 1920 Electric Railway Journal 583 carefully dried and again weighed to determine the lossin weight due to evaporation of moisture and the sandwas also remeasured to determine its shrinkage involume. The coal in each bin was weighed at thebeginning of each day and again at night, together withany additions during the days run. Watthour-meterreadings gave the power consumption. This showed atotal of 79 for the 530 of wet sand driedduring the first test period, the total coal consumptionfor the
. Electric railway journal . c r B T- *» .i^ ^^^B- 1^21 H I ipi 1 I m m M n^. March 20, 1920 Electric Railway Journal 583 carefully dried and again weighed to determine the lossin weight due to evaporation of moisture and the sandwas also remeasured to determine its shrinkage involume. The coal in each bin was weighed at thebeginning of each day and again at night, together withany additions during the days run. Watthour-meterreadings gave the power consumption. This showed atotal of 79 for the 530 of wet sand driedduring the first test period, the total coal consumptionfor the same period being 22,973 lb. The test showedthat there was an average evaporation of lb. ofwater per pound of coal consumed and that the coalconsumption averaged lb. per cubic foot of drysand. Note was also made of all other materials usedin the operation of the plant, such as oil, grease, waste,etc. The test covered a period of eight working days,the actual operating time being 621 hours. TABLE I—RESULTS OF TESTS OF SAND-DRYING PLANT Before Making After Making
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