Mechanical Contracting & Plumbing January-December 1908 . Heat loss 90772 Add 20 per cent, for non-heating at night 18154 Add 25 per cent, of one exposure to west 3709 In determining the radiation for thisbuilding our calculations would be asfollows: (h-ound Floor. Sq. feet. Glass surface (4x8 feet)X36= surface (100x10 feet)X2=2000Wall surface • (30x10 feet)X2= 600 Total heat loss in 112635 112635^250=450 or 450 square feetas the amount of direct steam heating-surface that would be required to main-tain 70 degrees in this space of 30,000 Gross wall surface ^..2600 Less glass sur
Mechanical Contracting & Plumbing January-December 1908 . Heat loss 90772 Add 20 per cent, for non-heating at night 18154 Add 25 per cent, of one exposure to west 3709 In determining the radiation for thisbuilding our calculations would be asfollows: (h-ound Floor. Sq. feet. Glass surface (4x8 feet)X36= surface (100x10 feet)X2=2000Wall surface • (30x10 feet)X2= 600 Total heat loss in 112635 112635^250=450 or 450 square feetas the amount of direct steam heating-surface that would be required to main-tain 70 degrees in this space of 30,000 Gross wall surface ^..2600 Less glass surface 1152 Net wall surface 1448 First Floor. Glass surface (4x8 feet)X36=1152Wall surface 100x10 feet)X2=2000Wall surface (30x10 feet)X2= 600Wall surface (roof) (100x30 feet)=3000 Gross wall surface 5600 Less glass surface •. 1152 Net wall surface 4448 In the above the doors have beenconsidered the same as the windows tosimplify the calculationsj but if openedfrequently they would need be allowedfor further. The walls are 12-inchbrick un]) cubic contents on the top floor where thebuilding is surrounded on both side wallsby building that are as high or higherthan the building under consideration. The .schecule of the total radiationwould be made up as follows: Sq. feet. Ground floor 340 First floor 450 Total 810 Exposed on All Sides. In Fig. 10 the two-storey building-is shown standing free of all otherbuildings and consequently exposed onall sides. The building measures 30x100 feetand has 10-foot ceilings on the two are a total of 70 windows andtwo doors. (Jround Floor. Glrss s--rface 1152X85=97820 Wall surface 1448X23=33294 Cu. contents (30()00-^55)XlX70=38100 Heat loss 169214 Add 25 per cent, of north and west exposure 16390 185504 185504-f-250=742 or 742 square feet ofdirect standard height heating surfaceif this space is to be heated to 70 de-grees at zero outside. First Floor. Glass surface 1152X85= 97820 Wall surface 4448X23=102294 Cu. contents
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