Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . dens/iy datfemperafure t Fig 3 The different pressures in a room like that shown in Fig. 1may be represented by the illustration Fig. 3, and the pressure atthe top of this room as shown by the example of the U tubewould be Pi =: h (d — d^) in which Pi = pressvire above the atmosphere;d r=:. density of the outside air;di = density of inside in mind that one cubic foot of air at zero weighs .0864lbs. per cubic foot and that for other temperatures the density ofthe air is in direct proportion to
Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . dens/iy datfemperafure t Fig 3 The different pressures in a room like that shown in Fig. 1may be represented by the illustration Fig. 3, and the pressure atthe top of this room as shown by the example of the U tubewould be Pi =: h (d — d^) in which Pi = pressvire above the atmosphere;d r=:. density of the outside air;di = density of inside in mind that one cubic foot of air at zero weighs .0864lbs. per cubic foot and that for other temperatures the density ofthe air is in direct proportion to the absolute temperature, wecan express the equation with approximate accuracy in tempera-tures to obtain the difference in density between equal volumesof the inside and outside air, as follows; for a room fifty feet \ /.0864 X-1()0\ /.0864 V -J(iO \ / .0864 X H)\ »?• Pi = \ T60 +0- ) \ ^ieo+To )= ? ^ I 1^ foot If this same room with the same conditions as before had oneopening at the top instead of the bottom as in Fig. 4, and if 504 CAN WE LOCATE THE NEUTRA
Size: 1265px × 1974px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidtransactions, bookyear1895
