Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . TABLE 5Air Discharge through Air Meter at Different Blower Si>eed8 Speed of Blowers Recirculated Air Outdoor \ir Supply Exhaust Manometer Dischargecu. ft. per Manometer Dischargecu. ft. per Fan Fan Scale minute Scale minute 1st 0 About 147. About 137. 1 1 196. 167. 2 1 210. 196. 2 2 216. 203. 3 2 228. 216. 3 3 238. 220. 4 3 250. 230. 4 4 257. 240. 5 4 270. 254. 5 5 282. 260. 6 5 294. 270. 6 6 304. 280
Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . TABLE 5Air Discharge through Air Meter at Different Blower Si>eed8 Speed of Blowers Recirculated Air Outdoor \ir Supply Exhaust Manometer Dischargecu. ft. per Manometer Dischargecu. ft. per Fan Fan Scale minute Scale minute 1st 0 About 147. About 137. 1 1 196. 167. 2 1 210. 196. 2 2 216. 203. 3 2 228. 216. 3 3 238. 220. 4 3 250. 230. 4 4 257. 240. 5 4 270. 254. 5 5 282. 260. 6 5 294. 270. 6 6 304. 280. 7 6 306. 284. 7 308. 284. 8 7 318. 296. 8 8 328. 299. AIR CIRCULATION No serious attempt has been made to study air circulation in theObservation Room, for in an experimental room of this charactersuch data could have but little practical bearing. On one occa- EXPERIMENTAL LABORATORY OF NEW YORK STATE COMMISSION 171 sion the air stream was traced around the room with an anemometer,its course being as indicated in Fig. 13. The necessity for breaking. JExhaust Fig. 13 Course of air current traced with an anemom-eter fro rn cnVance duct in Observation Roomtoexhaust opening . Air stream cooler than airof room . D i acharge 225 per minute,volumeof room looo up the entering air column in order to get effective distribution isshown in Table 6 by the high CO2 readings on days of ample air TABLE 6 Improvement in Air Distribution Effected by Breaking up Air Stream at Inlet (Room Temp. 6S° 1 Air Supply COo, Parts per cu. ft. per Theoretical time necessary 10,000, 2 hours Date min. per to completely flush room and 45 minutes capita. after 8 subjectsentered Before Diffusing Entering Air 12/8 45 3 minutes 12/10 45 3 minutes 12/14 45 3 minutesAfter Diffusing Entering Air 12/16 45 3 minutes 12/18 45 3 minutes Note: Seven subjects on the 14th, 16th and 18th. supply. Even with 45 cubic feet per minute per capita it is pos
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