. The principles of ventilation and heating and their practical application. J^/Sf/orfT yifjSftarj iZi^ air % I i HJiooin Figure 50.—VERTICAL SECTION OF SCHOOL BUILDING. iio VENTILATION AND HEATING. thermometers, and the numbers beside them are those used in the tablebelow. Where two numbers are attached to one circle, there weretwo thermometers, one above the other. No. i was at the centre of thehot-air register, about eight feet above the floor ; Nos. 2 and 3 at a. Figure 51. height of twelve feet above the floor (about as high as the instrumentcould be placed in a vertical position) ;
. The principles of ventilation and heating and their practical application. J^/Sf/orfT yifjSftarj iZi^ air % I i HJiooin Figure 50.—VERTICAL SECTION OF SCHOOL BUILDING. iio VENTILATION AND HEATING. thermometers, and the numbers beside them are those used in the tablebelow. Where two numbers are attached to one circle, there weretwo thermometers, one above the other. No. i was at the centre of thehot-air register, about eight feet above the floor ; Nos. 2 and 3 at a. Figure 51. height of twelve feet above the floor (about as high as the instrumentcould be placed in a vertical position) ; Nos. 4, 5, 6, 7, 8, 9, 10 and 11at a height of five feet six inches—level of bulb ; and Nos. 12, 13, 14and 15 at one inch above the floor. No. 15 being in front of the outlet. Number of ThermometerON Plan. 9 10 II 12 13 14 15 Outside. December 22, p. m. 2h. 40m, io8°F,7475696969 7168706970676665 2h. 50m. 13h. lom. 3h. 2501. 112 767870 7171 737072 717267676569 37 8473747476 73767576 70 71 120 81 +857576 7578757776 7770 697336 119 84 8776 777779 787879 69+ DeCEMBER 23, A. M. gh. om. gh. 401x1. loh. 71H 90 61616060 606061 5741 1047067636362 63 626363 60 5961 13580 79 68- 69- 69 72 716970 626064 The thermometers used were said to have been carefully selected andcompared with each other, and to have had no great variation. The VENTILATION AND HEATING. 17I room had been closed (before the afternoon observation) at 12:40. Aclass of about fifty scholars—the ful
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Keywords: ., bookcentury1800, bookdecade1880, booksubj, booksubjectventilation
