Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . Air Circulation past Tliermometei- Bulbs was stopped from 1 45 to ^ 15 P Wet Bulb Temperature S degrees as a result. The rise would probablrhave been only half this amouut if the wet bulb had been freely exposed to the airof the room. 168 EXPERIMENTAL LABORATORY OF NEW YORK STATE COMMISSION have shown the recording psychrometer to be very accurate andreliable. AIR MEASUREMENT The amount of air forced into the Observation Room was deter-mined by an air meter specially designed for the Commissi
Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . Air Circulation past Tliermometei- Bulbs was stopped from 1 45 to ^ 15 P Wet Bulb Temperature S degrees as a result. The rise would probablrhave been only half this amouut if the wet bulb had been freely exposed to the airof the room. 168 EXPERIMENTAL LABORATORY OF NEW YORK STATE COMMISSION have shown the recording psychrometer to be very accurate andreliable. AIR MEASUREMENT The amount of air forced into the Observation Room was deter-mined by an air meter specially designed for the Commission byWallace and Tiernan of New York City. (See Fig. 10.) Essen-. Fig. 10View ill Ohservntion Room, looliing toward windows to .Vp^aratus Room. Inthe upper right corner is the Air Meter attached to supply duct at third openingfrom floor. The small heater is shown in the upper part of picture. EXPERIMENTAL LABORATORY OF XEW YORK STATE COMMISSION 169 tially, the meter consists of a tight wooden box one foot square,fitted snugly over the duct opening. The face of the box has atriple wall through which extend from the interior to the exterior•JU brass tubes, 1 inch in diameter and lyi inches in length. Smallopenings in the inner partition communicate the total pressure ofthe air flow to the space between the inner and middle partition(See Fig. 11), and this space is connected with one end of themanometer. Openings in the outer partition lead to a space betweenthe outer and middle partitions which is connected to the other endof the manometer registering room pressure. By noting theresponses in the liquid of the manometer when passing known quan-tities
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Keywords: ., bookcentury1800, bookdecade1890, bookidtransactions, bookyear1895
