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THESIS
VOL USSE Ce ee RES
Wee eee:
F.0. STANG
1918
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An Investigation of the Ventilation System of the
R. BE. Olde Hall of Engineering.
A Thesis Submitted to
The Paculty of
MICHIGAN AGRICULTURAL COLLEGE
BY
‘he et
FP. O- Stang
ee
Candidate for the Degree of
Bachelor of Science
May, 1918
THESIS
Bibliography.
Vol.tI. Harding & Willard, "Heating & Ventilating,"
chapter on hot biast heating, including method of
measurement of flow of air under low pressure, and design
of ducts, both by the velocity and friction pressure loss
method,
American Society of Heating & Ventilation Engineering.
Yol.19, page £02. Discusses methods of taking readings of
air flow from a register face.
VYol.18 - Report on School Room Ventilation, suggested
requirements given as a result of investigation of sondi-
tions existing in sehools,
Heating and ventilating magazine, Jan., Feb., March,
and April issues for 1918, Discussions of teste of ventil-
ating systems in several Ohicage schools. These diseussions
inelude data taken during the test and conelusions drawn.
Intex
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"abuiated Jete wna cen newer emenn ne
Photorraphs ---«.---~--.--~-- ee
Colihretion evyrrs for sremoneter «-.
Fan nerformence CUVEE wane weno
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1.
INTRODUCTION.
The subject of ventilation is one which has occupied
the attention of many engineers, and as yet is not by any
means entirely mastered. This statement is quite evident
after reading reports of the meetings of the American
Soeiety of Heating and Ventilating Engineers. The question
as to what system of ventilation is to be employed for a
ehurch, assembly hall, theatre, eto., will bring forth as
many opinions as to the right and wrong system as there are
people in the discussion. It is hardly an exaggeration to
say that a small percentage of public buildings are ever
properly ventilated.
The object of this thesis is to check the distribu-
tion of air to the various rooms of the building, and to
change the design of the system where necessary by means
of baffle plates to meet the requirements,
The present building was placed on the foundations of
the 014 one destreyed in 1915, and for that reason the same
plans were used practically threughout. The inlet to the
fan is loeated on the west side of the steam Laboratory,
and the incoming air is taken threugh a plenum chamber, and
is heated by passing over the coils before it reaches the
fan. This system is known in practice as the draw-through
Ze
arrangement; that is, the fan is installed between the
heater and the main dusts. Directly below the basement
hallway is the tunnel into which the air is delivered
from the fan, At the east end of the building the
main tunnel is intercepted by a tunnel at right angles,
this second tunnel being necessary, due to the arrange-
ment of the rooms on the east end. The inlets to the
duets leading to the various rooms are located in the
walls of this tunnel, These openings extend back 8
distance of a foot or so, and then turn to the vertical
position. The duet is no more than an opening in the
brickwork, through which the air is delivered to the
rooms. Diffusers are placed at the outlet of the ducts
into the rooms, The diffusers consist of vanes set ver-
tically in a framework which fits the outlet and radially
with respect to a vertical line located sane place back
of the outlet. These diffusers tend to spread the air
about the room, rather than allow it to flow directly
aeress the room as is the ease with an open duct, The
scheme used for distributing the air in the assembly
room is unique, and worthy of some attention here. Three
ducts extend from the tunnel to the second floor level,
and enter a chamber over the hallway. This ghamber is
noticeable, as the eeiling over the hallway at the west
end is lower than at the east end. From this chamber
the air enters the assembly room through five outlets,
3e
travels in a downward direction beneath the platform
at the front of the room, then up the duct in the east
wall, and finally thmugh the outlet in thie wall. The
inlet to the ducta leading to the assembly room from the
tunnel, and the outlet in the east wall are equipped with
vanes, the opening and closing of which are controlled
by compressed air. The reason for this is apparent, for
if the assembly room is not in use, the vanes may be
closed, and the air that the fan has to deliver will be
greatly lessened, ani what is of most importance, the
power required will also be diminished.
After considering different schemes of obtaining the
results required, it was decided that the easiest way
would be to measure the flow of air at the inlet of the
ducts, rather than at the outlet; the latter eystem being
the one used by the Commission of Ventilation for the City
of Chicago in its tests of the ventikating systems of
various sehools of that city, but was hardly applicable in
the ease of the Engineering Building.
The instrument used for measuring the velocity was
an anemometer. While it is possible to do a great deal
more work with one of these instruments than with some of
the other devices on the market, its accuracy is questiona
able, and given by most authorities as checking within a
probably error of from one to five percent, and velocity
4.
limits of fram one to forty feet per sec. The calibration
curve for the anemometer used will be found on Plate l.,
and show the correction to be added to the instrument
reading, Knowing the velosity of the air and the area of
the duct, the quantity delivered can be obtained by the
formula: velocity times area equals quantity.
In regard to the amount of air required for ventila-
tion, authorities differ, specifying amounts varying
fron five hundred to twenty-four hundred cubis - feet of
air per hour per person. The quantity most often re-
quired by the state laws for such buildings as the one
under consideration is eighteen hundred cubic feet per
hour per persen, and this was the figure used throughout,
except in the case of room 10, where a large portion of
the students’ time is used in chemical analysis work, and
in this instance a figure of 3000 oubic feet.per hou per
person was used. Harding & Willard give 3500. Reference
to the data sheets following will show that in many cases
the requirement is far exceeded, while in others the
quantity necessary is greater than that delivered. It is
evident from this that the system is not balanced; and
in order to overcame the difficulty, baffle plates shoulda
be used to increase the quantity where the required amount
is not met, and lessen the volume delivered to others to
the amount necessary. In Plate 2 the basement and foot-
ing plans of the building are shown, The figures
& ongpide the ducts are taken from the log sheeta, and
are the quantities of air deliverea when the fan is oper-
ating at the highest speed, which is about 150 r.p.m.
The tabulated data on the log sheets following ia-
elude the complete set of readings for each test, the
averaze reading, the quantity delivered, and the quanti-
ty required, The readings were taken at five different
speeds of the fan, and show a marked variation in some
instances at the same speed. Thies illustrates that out-
side conditions have an important effect on the efficient
working of a ventilating system. This effect will tend
to become less as the construction more nearly approaches
air tight eonditions,
CONCLUSIONS.
Some of the conclusions drawn from this test have.
been given in a general way in the previous description.
Without an attempt to berder on the humorous side of the
situation, I would say that it seemed a rare coincidence
indeed that the piers used for supports are all situated
near a group of ducts, se that the air is deflected in
sush a way that one or twe of them receive an excess,
while others receive a smaller proportion of air. An
attempt was made to locate the duct to room 4135, but as
6.
no results were obtained, it was concluded that the
passage was blocked up. On the south side of the tunnel
and just west of the fan outlet, are two ducts which do
not apparently connect up to any room, md in that case
they should be closed, because the air pumped into them
simply finds its way out again. Referring to Plate 3,
these ducts are marked A and B, and the quantity of air
delivered is given on sheet No.(9 ), The ducts which are
closed or do not register any flow of air are marked on
Plate 3 as (sere) eu. ft.
The condition in whieh the chamber was left when the
work was completed on the building is santhing that
should not be overlooked. <A considerable quantity of
mortar, broken bricks, and concrete was left, and gave
evidenee that the inspector did not use due care in ex-
ercising his duty. The presence of dust in the air was
very evident by ite being deposited on the polished sur-
face of the anemometer box. I would suggest that before
any attempt was made to change the quantity of air deli-
vered to various rooms, that the quality be improved by
cleaning out the useless material now present.
It is to be regretted that time does not permit of
a continuation of the work to lay out a system of baffles
as has been suggested earlier.
7.
To conclude, it should be clearly understood
that this subject was not taken up with the idea of
finding fault, nor were the remarks in the last few
paragraphs directed at any particular person. The
work was undertaken to gain some knowledge in the ways
of ventilation ani means of overcoming existing aiffi-
culties.
Acknowledgments,
This page is devoted to the expression of my in-
debtedness to Dean Bissell for his timely suggestions ed
adviee; to Mark's "Meehanieal Engineer's Handbook," for the
use of air meters and their limite; to Harding & Willard's
"Heating & Ventilation"zsand the "Transactions of the Ameri-
ean Society of Heating & Ventilating Engineers," for dis~-
cussions of ventilating systems ani requirements for good
ventilation, .
Miscellaneous,
the duets te reoms 6-108 and £06 are all very narrow
in preportion to their height, and to lessen the error,
the lower part of the duet was closed up, leaving a
height of abeut seven or eight inches. By this means, the
velocity was increased, and the error of reading according-
ly decreased, The data given below were obtained under
these conditions.
Room «Vel. Ft. Area of Cu. Ft. Cu. Ft.
Ho. Per Min, Duet, Per Hr. Per Hr.
SqFt. Delivered. Required.
6 210 0.425 5370
108 195 0.5 5620 1800
206 195 0.525 6140 3600
fhe curve on Plate 2 shows the relation between the
speed of the fan and the volume of air as measured at
the inlet of the fan,
R. P.M. Fan 90.
10.
Room Area Vel. Vel. Vel. Aver. Cor- Cu.Ft. C
Ho. Duet Ft./ Vel. rt'd. Per Hr, Oar Re-
Sq Ft. Min, quired.
1 6.66 0 0 3600
2 1.418 40 45 115 79 76 6300 1800
et }
103 )1.33 0 0 36000
4 2,24 65 10 100 = # 59 6700 18000
6 3.25 100. 1860 120 110 114 £22200 18000
6 1.6 O 0 1800
7 3.2 90 120 90 97 #«997 18600 18000
9 1.415 60 60 85 67 #60 5100 3600
10 2.79 170 =:200 206 191 209 35000 30000
ll 2.67 145 120 120 136 146 £5400 22000
12 4.0 180 180 206 179 197 47250 £2000
13" }
114 )1.335 230 380 270 245 259 20800 3600
sus
1.416 110 265 230 179 196 16600 14400
sis
1.5 130 220 90 170 186 16700
33, J0o
11
Room Area Vel. Vel. Vel. Aver. Gor~ Cu.Ft. Gu.Ft.
No. Duct Ft./ Vel, rt'd. Per Hr, / Hr.Re-
SqoFt. Mine _ pirst Floor - quired.
101-)
201 )1.5 110 198 160 136 146 13150 3600
208} 1,416 2
‘ 20 135 120 134 144 12200 2700
104 1.375 0 0 1800
105 2.84 80 10 70 62 58 9500) 86000
105 1.46 0 0
107 3.33 95 140 140 105 107 21400 75800
108 1.6 Oo 0 1800
109 4.0 75 110 110 101 101 24200 18000
110 L 0.84 140 170 130 138 141 7100 18000
110R 1.41 20 80 50 60 40 4840 18000
111 5.0 70 140 180 112 115 34500
111 7.0 680 90 80 70 63 25500 ) 434000
111 7.17 100 130 180 121 127 6546500
11/4. 500
115 4.0 0 0 25200
115 2.84 175 320 180 231 247 42000 36000
fotal for 102-202 »« 5400 required, 27650 delivered.
12.
Room Area Vel. Vel. Vel. Zver. Cor- CuFt. Cu.Ft.
Bo. Duct. M./ Vel. rt'd. Per Er. / Hr.Re-
Sq.Ft. Min. quired.
- Second Floor, -
202 1.58 120 185 195 150 163 15450 2700
208 2.92 120 120 130 142 # 153 £6800 69400
204 2.84 650 10 75 £44 35 5970) 10800
204 3.02 20 § 30 26
205 3.4 105 140 115 111 #=*115 25400 45000
£206 1.625 0 0 3600
£07 4.0 90 110 105 106 = 108 21600 52200
208 6,0 60 140 130 100 #100 30000 36000
£09 2.75 150 260 140 169 #4184 30400 1800
210 2.75 180 316 200 219 £=«237 39000 £55750
13
Room Area Vel. Vel. Yel. Aver. Cor- Gu.Ft.
Cu. Ft.
No. Duct Ft./ Vel. rt'd,. Per Hr, / Hr.Re-
Sq Ft, Min, quired.
- Pfhird Fleer. -
SOl 2.67 140 805 160 171 187 29900 69400
302 £,.84 0 0 59400
303 £.62 65 80 65 62 +£«1\563 8350 45000
304 5.25 100 105 130 165 180 365100 59400
$05 1.88 0 O 1800
306 3.38 40 60 80 62 #£«©458 12400 50400
308 2£.84 160 180 120141 162 28900 45000
309 4.0 180 240 170187 2805 49250 37800
$10 1.415 110 140 .130 182 140 11900 8600
11 2.75 115 190 185164 1979 29500 57800
311 £2.92 130 220 170160 175 sosoa}
60,/00
14.
Room Area Vel. Vel. Vel. Aver. Cor- Ou.Ft. Cu. Ft.
No. Dust. Ft./ Vel, rt'd. Per Hr. / Hr.Re-
Gq Pt. Mine _ pourth Floor - quired.
401 2.0 220 260 255 231. 247 29600 36000
402 1.83 170 180 160 160 178 19200 36000
403 2.0 75 120 110 95 98 11400 19800
408 3.4 110 145 135 127 135 £7800 86000
406 1.33 ©O 0 1800
407 3.33 90 125 95 106 108 25900 89400
409 2.84 145 130 140 189 150 28600 5400
410 4.0 125 200 170 18Â¥ 171 41000 48000
411 1.415 0 0 1800
412 2.67 140 280 220 185 203 82500) 45000
412 3.0 110 175 155 180 139 25000)
413 Refer to Page ( ) above. °° — 1800
4144 2.08 130 180 70 117 «122 16200 3600
15.
RPM. Fan.lll,
Room Area Vel. Vel. Vel. Aver. Cor- Ou.Ft,. Cu. Ft.
No. Duct Ft./ Vel. rt'd. Per Ur. Per Hr.
Sq Ft. Min. . Required,
1 0.66 0 0 3600
2 1.415 1650 160 170 166 #£=°181 15400 1800
g~ {1.88 0 0 36000
103
4 2.24 170 140 190 168 #=£180 £4200 18000
6 3.258 160 200 185 174 #+7£;§190 37000 18000
6 1.58 0 0 18000
7 3,2 80 100 QO 79 76 13900 18000
9 1.415 105 90 128 110 £=#114 9450 3600
10 2.79 230 250 180 225 $241 40500 30000
11 2.67. 880 240 170 239 #£«x%254 40500 22000
12 4,0 £15 230 300 244 258 62000 £2000
12~}
114 J1.5358 380 330 390 S869 372 29800 $600
k4~- )
312 )1.4158 330 190 320 280 # 290 24600 14400
14-
313) 1.5 £280 190 280 255 268 24100)
78, 700
16.
Room Area Vel. Vel. Vel. Aver. Cor- Cu.Ft. Ou. Ft.
No. ..Dust Ft, | . Vel. rt'd. Per Hr. Per Hr.
Sq.Ft. Min. Required,
- First Floor.-
101-} 1.5 145 245 255 2806 224 20200 3600
02) 1.415 160 170 190 177 194 16500 2700
z
104 1.375 0 0 1800
105 2.84 115 90 126 109 111 #4«1.18900) 86000
105 1.46 0 0
107 3.33 180 170 220 181 198 39800 785500
108 #165 £O 0 1800
109 40 100 110 50 90 #=389 += 21400 1800
110 L 0.84 195 165 185 1712 187 9450 1800
110 R 1.41 100 170 135 129 137 11700 1800
111 5.0 180 265 90 166 181 54250
111 7.0 140 110 90 110 114 48000) 434000
111 7.17 215 195 1768 199 218 94000
19 6,2 £0
113 40 0 #0 #7 #47 0 25200
115 2.84 305 £75 310 308 315 53600 36000
Total for 102-202 » 38600 delivered, 5400 required.
17.
Room Area Vel «. Vel. Vel. Aver. Cor~ Cu. Ft. Cu. Ft.
No. Duct Ft,/ Vel. rt'd. Per Hr. Per Hr. .
Sq.Ft. Min. Required,
- Secénd Floor. -
202 1,568 200 200 240 215 233 22100 2700
£03 £,92 305 260 280 272 £290 50800 59400
£04 2,84 110 95 130 115 120 20450
10800
204 $8.02 70 =—60 60 66
£2056 3.4 200 155 200 179 196 40000 45000
206 1.625 0 | 0 3600
207 4.0 110 120 110 119 125 30000 582200
208 6,0 190 206 205 200 219 65500 56000
209 2.75 £15 176 225 202 221 36500 1800
£210 2,75 335 200 335 274 285 48600 55760
18.
Room Area Vel. Vel. Vel. aver. Cor- Ou.FPt. Cu.Ft.
No. Duct Ft./. Vel, rt'd. Per Hr. Per Hr.
Sq.Ft. Min, Required.
- fhird Floor.- >
SOl 2.67 290 250 340 300 308 49200 59400
502 2,84 0 0 59400
$03 2.62 140 96 95 110 4113 #4217800 45000
304 3.25 200 145 160 169 185 36000 59400
$05 1.58 0O 0 1800
306 3.35 120 120 30 102 102 #$‘£.%20400 50400
408 2.84 190 180 130 182 200 34000 45000
309 4.0 218 270 220 214 ##=232 #£+§5500 57800
310 1,416 160 170 180 185 203 £17200 3600
$1l 2.75 140 220 270 214 #232 $=38200 37800
Sll 2.92 245 245 280 252 £65 § 46500
EF 700
19.
Room Area Vel. Vel. Vel. Aver. Cor- Ou.FPt. Ou.Ft.
No. Duct Ft./ Vel, rt'd. Per.Hr. Per Hr.
Sq.Ft. Min. Requi red.
~- Fourth Floor.-
401 2.0 265 280 410 334 339 j$=40600 36000
402 1.83 190 210 2265 204 228 #§$£=28600 $6000
403 2,0 180 140 185 157 #170 #20400 19800
405 5.4 180 180 1958 184 202 $=41200 $6000
406 1.35 0 0 1800
407 3.33 100 108 160 124 130 #4226000 59400
409 2.84 220 165 140 196 218 #$®:$%6600 36600
410 4.0 195 320 270 240 255 61000 45000
411 1.415 0 0 1800
412 2.67 260 310 360 294 # £302 54500 45000
418 3.0 200 240 240 225 242 j§ 38800
413 77.000 1800
414 2.08 225 130 160 182 199 24800 3600
20.
RPM. Pan.i29.
Reom Area Vel. Vel. Vel. Aver. Gor= - Cu.Ft. Ou.Ft.
Bo. Duet FM./ Vel, rt'd. Per Hr. Per Hr.
Sq.Ft. Min. Required
1 0.66 0 0 3600
2 1.415 220 1758 210 195 214 18200 1800
Be
103) 1.33 0 0 $6000
4 2.24 186 195 195 192 # £209 28100 18000
5 3.25 220 210 198 214 £4231 465000 18000
6 1.5 0 0 18000
7 Bek 145 170 120 121 £=127 23400 18000
9 1.415 140 120 80 110 114 9700 3600
10 2.79 245 2956 £765 272 + +$%}288 47500 #30000
ll 2.67 275 220 250 269 #280 44800 22000
12 4.0 £235 220 220 225 £e41 51750 22000
13+
114) 1.335 420 360 410 397 399 $1900 5600
14+
312) 1.415 265 360 350 332 338 38800) 14400
L4+ |
$13) 1.8 250 280 £40 237 #4®&3252 22700
64 500
21.
Room Area Vel. Vel. Vel. Aver. GCor- Cu.Ft. Cu.Ft,
Ho. Duet. Ft. . Vel. rt'd. Per Hr. Per Hr.
Sq.Ft. Mins . : Required.
- Fires Fleer. -
jun
101+} 1.5 195 230 290 227 248 £21800 ~§ 3600
302+ }2 418 150 150 200 172 188 16000 2700
104 1.375 O 0 1800
105 2,84 130 1835 105 125 132 22500) 86000
105 1.46 90 0
107 3.833 210 225 215 220 237 47400 75500
108 1,5 0 0 1800
109 4.0 120 130 148 125 132 31700 18000
110 L 0,84 110 225 230 199 218 11000 18000
110R 1.41 25 95 90 58 18000
111 5.0 230: 205 245 231 247 74.000
111 7.0 150 188 155 160 174 173000) 434000
111 7,17 245 230 240 247 261 112000
£59,000
118 4.0 Q 0 25200
115 2.84 285 348 360 317 324 ° 58200 36000
Fotal for rooms 102-202 « 38100 delivered.
22.
eet
Room Area Yel. Vel. Val. Aver. Cor- Cu.Pt. Ou. Pt.
No. Dust. M./ Vel, rt'd. Per Hr. Per Hr.
Sq Ft. Min, Required.
- Second Floor -
202 1.58 170 190 268 216 238 22100 2700
208 2.92 260 285 $10 291 800 52500 59400
204 2.84 185 140 125 129 137 28400) 10800
204 38.02 80 110 90 90
£05 3.4 190 215 205 £06 225 45800 465000
206 1.625 0 0 3600
207 4.0 140 145 175 158 165 89600 652200
208 5.0 185 165 178 180 197 59500 36000
209 2.75 225 220 205 210 228 37600 1800
210 2.75 275 S60 310 816 S28 53300 55750
23
Room Area Vel, Vel. Vel. Aver, Cor- Ou.Ft. cu. Ft.
No. Duct Ft./ Vel. rt'd. Per.Hr. Per Hr.
SqFt. Min, Required
- Third Floor, -
501 2.67 285 285 310 297 #4305 48800 59400
302 2.84 0 0 69400
30S 2.62 140 135 136 134 144 22600 45000
504 3.25 230 255 205 226 248 47200 59400
305 1.58 0 . 0 1800
306 3.35 120 145 95 106 #£«x®109 21800 50400
508 2.64 198 190 180 169 #207 55300 45000
509 4.0 260 300 295 281 291 70000 $7800
310 1.418 195 190 £15 195 214 18200 $600
$11 2.75 870 270 S25 279 #1®&3289 47600 $7800
Sll 2.92 2896 £90 320 301 509 64000
101 600
24.
Room rea Vel. Vel. Vel. Aver. Cor- Cu.Ft. Ou. Ft.
Ne. Duct Ft./ Vel. rt'd. Per Hr. Per Hr.
Sq.Ft. Min, - Fourth Floor.- Required
401 2.0 300 345 445 357 361 438300 36000
402 1.88 220 ‘225 8385 2825 241 26400 36000
403 2.0 155 165 175 166 180 21600 #19800
405 34 £210 + #$.9210 215 215 233 47500 36000
406 1.33 0 0 1800
407 $2.50 155 165 170 165 179 36800 }# 589400
409 2.84 235 210 300 209 £228 59000 36600
410 4.0 210 210 305 245 259 62100 45000
411 1.415 Q 0 1800
412 2.67 £70 260 260 269 280 44800
45000
412 $,0 £225 £205 200 204 223 40250) —
85.050
413 1800
414 £.08 210 215 170 191 208 26000 $600
25.
RP.M.Yaan 142,
Room Area Vel. Vel. Vel. Aver. Cor- Cu.Ft. Cu.Ft.
No. Duct Ft./ Vel. rt'd. Per Hr. Per.Hr.
Sq eFt. Min. Required
2 0.66 0 0 3600
2 1.415 185 210 190 205 224 19050 1800
S- 1,83 0 0 36000
103
4 2.24 230 205 215 £15 £33 31300 18000
5 $225 £40 £36 245 236 251 £49000 18000
6 1.5 10 45 45 £27 0 18000
7 3.2 180 220 155 262 265 50750 18000
9 1.418 115 106 150 128 129 11000 $6000
10 2.79 410 340 340 $10 316 53000 50000
11 £.67 280 280 330 291 299 48000 22000
13 4.0 245 245 250 245 259 62250 22000
13+ 1.5535 480 405 440 439 440 353500 3600
114
144 1.415 395 406 425 409 411 35000
512 14400
£90 270 290 321 327 £29400
313
14s} 1.5
69,900
26.
Cu. Ft.
Room Area Yel. Yel. Vel. Aver. Cor- Cu. Ft.
Jo. Duct Ft./ Vel, rt'a. Per Hr. Per Hr.
Sq.Ft. Min. : : | Required.
- First Floor.-
101+} 1.5 2858 S10 220 271 282 28400 3600
102+} 1.415 185 210 208 £02 221 1«®2+18800 2700
104 1.375 0 0 1800
105 2,84 155 140 150 144 156 26600}
105 1.46 0 9 3 00°
107 8.33 260 280 260 266 278 55500 75500
108 1.8 20 20 85 2 o 1800
109 4.0 195 138 140 149 161 38600 18000
110L 0.84 245 260 270 246 860 15100 18000
110R 1.41 40 68 120 69 62 5250 18000
111 5,0 860 285 295 272 283 868000
111 7.0 208 210 195 191 809 988000) 434000
111 7.17 290 280 260 277 888 124000
297,000
118 4.0 0 0 26200
115 2.84 365 345 380 3561 365 62260 86000
Total for rooms 102-202 e €2900,
27.
Room Area Yel. Vel. Vel. Aver. Cor- Ou.Ft. Ou.Ft.
Ho. Duet Ft,/ Vel, rt'd. Per Hr. Per Hr.
Sq.Ft. Min. Required.
- Second Floor. «
202 1,58 850 255 £20 839 254 #£24100 2700
£035 2,92 345 365 S10 S36 341 #44500 §9400
204 2,84 150 125 155 144 186 #426600
204 3,08 116 90 95 104 106 19200 *0800
205 3.4 225 280 255 227 244 49000 46000
206 1.625 0 0 $600
207 4.0 160 170 195 165 180 43250 52200
£208 5,0 270 200 195 224 241 #72250 36000
209 2,75 205 285 270 244 2688 42600 18000
210 2.75 400 370 405 389 592 #64800 55750
een a ——_
Room Area Vel, Vel. Vel. Aver... Cory Ou.Ft. Cu.Ft.
How Dust Ft./ Vel. rt'd, Per Hr. Per Hr.
SqFt. Min. . ‘Required
~ Phird Floor.-
301 2.67 860 3860 3885 345 S550 56000 59400
302 2.84 O 0 69400
$03 2.62 155 160 160 156 169 26600 45000
S04 3.25 250 205 220 217 235 26000 59400
305 1.68 O 0 1800
306 3.33 150 140 150 136 46 29200 50400
308 2.84 255 245 205 231 247 42100 45000
509 4.0 315 3820 820 S886 3832 79600 37800
310 1.418 205 200 205 204 223 18900 36000
311 2.75 310 295 £90 806 815 652000) 37800
511 2.92 350 310 345 5826 68250)
110,250
29.
Reom Area Vel. Vel. Vel. Aver, Cor- Cu. Ft, Ou. Ft,
Ho, Duet Ft, / Vel. rt'd. Per Hr. Per Hr.
- §q.Ft. Min. | Required
- Fourth Floor.-
401 2.0 405 415 370 417 #+=;%.419 60400 $6000
402 1.88 270 3245 255 262 274 #30000 36000
403 2.0 215 195 800 204 228 #§$£=.26800 19800
405 3.4 215 £60 £220 232 # #248 50500 36000
406 1.35 9O 0 1800
407 3.33 195 190 185 177 193 38600 69400
409 2.84 235 245 226 229 245 41760 36600
410 4.0 240 260 #260 0 45000
411 1.415 0 0 1800
412 £2.67 38330 8305 3835 266 278 #$£=~%(444500
46000
412 3.0 260 2535 270 2655 268 48800
92,700
413 1800
414 £2.08 2855 #$=236 £265 275 287 35800 3600
50.
RP MeFan 149,
Room Area
Vel, Vel. Vel. Aver. Cor- Ou.Ft. Ou. Ft,
No. Duct Ft./. ‘Vel. rt'd. Per Hr. Per Hr.
Sq.Ft. Min, Required,
1 0.66 0 0 8600
2 1.415 210 230 2890 239 254 20600 1800
3-
103 | 32 Q 0 $6000
4 2,24 235 230 2658 250 3863 56300 18000
6 38.25 £60 225 255 252 265 51750 18000
6 1.8 Refer to note page (9 ). 18000
7 See 125 180 180 159 178 43200 18000
9 1.415 1680 160 160 162 175 14900 3600
10 2.79 375 350 410 382 388 65000 50000
ll 2,67 320 8340 8330 327 333 53300 22000
a2 4.0 £80 £265 305 284 293 70250 £2000
114 12 {1.336 555 545 555 657 555 44500 $600
sin
12 {3.425 426 475 440 447 448 38000 14400
sis"
Hs ee 1.5 380 38360 470 3894 396 35600
7 3, 600
31.
Aver. Cor-
Room Area Vel. Vel. Vel. Cu.Ft. Cu. Ft,
No. Dust Ft./ Vel, rt'd. Per Hr, Per Hr.
Sq.Ft. Min. Required
- First Floor.«-
aOit 1.5 £290 270 SOB 276 287 25800 3600
108+ 1.415 255 850 255 249 263 22300 2700
104 1.376 0 0 1800
105 2.84 175 160 180 174 190 $2400
86000
105 1.46 0
107 3.35 275 270 £95 289 298 69500 75500
108 1.5 Refer to note Page (9). 1800
109 43=— 40 130 160 1868 151 164 39400 18000
110L 0.84 285 860 3800 e281 291 14650 18000
11l0R 1.41 90 100 98 698 8300 18000
112 ~=—s« 6,0 340 345 340 341 346 #;:+#104000
Lil 7,0 240 230 205 220 286 99000) 434000
1ll 7.17 345 306 380 331 337 #145000
348000
113 4.0 40 40 35 39 #439 7200 25200
115 42,84 490 510 410 475 475 81000 56000
fotal for rooms 102-202 = 48700 delivered.
Room Area Ve ‘Vel. Vel. Aver. Gor- QuFt. Cu. Mt,
Ho. Duct Ft. Vel. rt'd. Per Hr. Per Hr.
Sq.Ft. Min. | Required.
-Second Floor.- |
£02 1.58 280 800 3260 867 £278 26400 3600
203 2.98 855 350 385 267 278 48700 69400
£204 2.84 1680 160 140 157 170 829000
| 10800
£04 3.02 120 170 140 141 #188 #&=;27400
3t¥oo
205 3,4 260 240 2820 245 259 + £=™®.§2800 46000
206 1.625 Refer to note Page (9 }.
£07 4,0 196 190 220 196 215 #§$f-1500 #£5§2200
208 5.0 220 235 240 e236 251 76300 36000
£09 2.75 300 295 38265 308 j307 #4«®4550600 1800
£10 2.75 470 480 470 486 486 80250 #£4655750
Room Area Vel. Vel. Vel. Aver. Core Cu.Ft, Cu. Ft.
Ho. Duct Ft,/ Vel, rt*d, Per Hr. Per Hr.
Sqft. Min. ~ Thiré Floor « Required,
$01 2.67 410 420 425 417 4.419 67100 59400
502 2.84 0 0 59400
303 2.62 180 215 190 196 215 33800 45000
304 3.25 235 220 240 241 256 #50000 59400
S506 1,58 0 0 1800
S06 3.33 180 160 180 164 179 36800 50400
308 2,84 325 290 256 291 3800 61100 45000
309 4,0 350 335 S60 S37 342 £82000 57800
310 1.415 280 R260 240 251 264 #22400 3600
$11 2.75 320 340 335 331 337 #55600
$11 2,92 400 340 3880 385 £388 se0oo| e780
123,600
Reom Area
Vel. Vel. Yel. Aver. Cor- Cu.F. CuFt.
No. Duct Ft./ Vel. rt'd Per Hr. Per Hr.
| Sqe Ft. Min. | Required.
- Fourth Floor -
401 2.0 . 440 -470 465 439 440 652800 36000
402 1.83 270 260 290 274 884 31200 36000
4053 8:0 220 245 250 244 258 31000 #19800
405 3.4 240 240 870 251 264 53800 36000
406 1.33 0 | 0 1800
407 3.33 210 2800 2805 204 223 44500 £59400
409 2.84 280 310 265 285 294 650000 #236600
410 4.0 340 368 310 334 339 81300 485000
411 1.415 0 0 1800
412 2.67 300 400 380 357 361 67750}
: 45000
412 3.0 305 260 270 277 287 67600)
[15,350
413 1800
414 2.08 260 430 395 362 367 465700 3600
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50.
Room Area Ve i. Yel. Vel. Aver. Cor- COu.Ft. Ou. Fe e
Ho. Dust Ft o/ Vel. rt'd, Per Hr. Per Hr.
Sq.Ft. Min, Required,
1 0.66 0 0 3600
2 1.415 210 230 290 239 254 20600 1800
Z~
103 ‘ 35 0 0 36000
4 2,24 236 230 265 2850 2863 46300 18000
6 3.25 260 225 255 2852 265 51750 18000
6 1.5 Refer to note page (9 ). 18000
7 See 125 180 180 159 178 35200 18000
9 1.415 180 160 150 162 175 14900 3600
10 2.79 375 350 410 382 388 65000 30000
ll 2,67 $20 340 S330 S327 333 53300 22000
12 4,0 280 £65 308 284 293 70250 22000
114 re 1.335 555 $845 6555 6557 555 44500 $600
sis
12 42 415 426 475 440 447 448 $8000 14400
sis.
is} 1.5 380 360 470 S894 396 35600
73, 600
31.
Room Area Vel. Vel. Vel. Aver. Cor- Cu.Ft. Ou. Ft,
No. Dust Ft./ Vel, rt'd. Per Hr. Per Hr.
Sq.Ft. Min. Required
- Firet Floor,.-
toit 1.5 290 270 S05 276 287 25800 5600
208+ 1.415 255 2850 255 249 263 22500 2700
£02
104 1.375 O 0 1800
105 2.84 #175 4160 180 174 190 $2400
86000
105 1.46 0 0
107 3.53 275 £70 2965 289 298 69500 75500
108 «8611.5 Refer to note Page (9). 1800
109 838 40 130 160 155 151 164 59400 18000
110L 0.84 285 860 300 281 291 14650 18000
LOR 1.41 90 100 98 98 8300 18000
lili = & .0 540 345 340 341 346 #104000
lil =7,0 240 230 205 220 286 99000) 434000
lll 7.17 345 305 380 331 337 #145000
348000
1130S 4,0 40 4 35 39 £439 7200 25200
115 42.84 490 510 410 475 475 81000 56000
fotal for rooms 102-202 = 48700 delivered,
Reom Area Vel. Vel. Vel. Aver. Gor- Ou.Ft. Gut,
Zo. Duct Ft. / Vel. rt'd, Per Hr, Per Hr.
SqFt. Min, . Required.
“Second Floor.- —
£08 1.58 280 3800 860 2867 £278 286400 3600
203 2.92 855 350 385 267 #=&78 +#«=48700 #69400
£04 2.84 1580 160 140 157 #=+.9170 89000
| 10800
204 3.02 120 170 140 141 #158 #3=«*x:287400
3t¥oo
205 3,4 260 240 2820 245 2589 #+£=™.§2800 46000
£206 1.625 Refer to note Page (9 ).
207 4.0 196 190 220 196 215 #$=5§1500 #£=5§2200
208 6.0 220 835 240 #236 251 765300 36000
£09 2.75 300 295 3825 308 $307 #®245§0600 1800
210 2.76 470 480 470 486 486 80250 # 55750
33.
Room Area Vel. Vel. Vel. Aver. Cor=- Ou.Ft, CuFt.
No. Duct Ft./ Vel, rt'd, Per Hr. Per Hr.
Sqeft. Min. ~- Thir& Floor - Required,
S$Ol 2.67 410 420 425 417 #4+.419 67100 59400
502 2,84 0 0 59400
503 2.62 180 215 190 196 215 #$=33800 45000
504 3.25 235 220 240 241 256 #®§0000 59400
505 1.58 0 0 1800
506 3.33 180 160 150 164 179 #135800 50400
508 £2.84 325 290 255 291 300 61100 45000
509 4,0 350 335 S60 SSY 342 82000 57800
310 1.415 280 860 240 251 264 # £22400 3600
S$ll 2.75 320 340 335 S81 337 #55600
$11 2.92 400 340 S880 S85 £388 ‘e000 onan
123,600
Reem Area Vel. Vel. Vel. Aver. Core CuFt. Gu, Ft,
Ho. Duct Ft./ Vel. rt'd Per Hr. Per Hr.
Sq Ft. Min. Required,
. Fourth Floor -
401 2,0 440 470 465 439 440 £52800 36000
402 1.83 270 280.290 274 284 £31200 56000
403 8.0 220 245 250 244 258 #31000 19800
405 3.4 240 240 270 251 264 #83800 36000
406 1.35 0 | 0 1800
407 3.33 210 200 2805 204 223 44500 £59400
409 2.84 280 310 265 285 294 #50000 36600
410 4,0 340 365 310 334 #339 #81300 45000
411 1.415 0 0 1800
412 2,67 300 400 360 S57 361 57760}
: 45000
412 3.0 305 260 270 277 #«°\:287 #57600)
[15,350
413 1800
414 2.08 260 430 395 362 367 £45700 3600
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