Methodology for the Evaluation of Natural Ventilation in ... - Cham

More documents

Recommendations

Info

2.3 24.31 24.65 24.781.4 23.35 23.65 23.780.6 23.38 23.65 23.70Second Floor Heated ZoneHeight from Floor (m) 3 Stacks Open 1 Stack Open Stacks Closed3.2 23.71 24.05 24.192.5 24.14 24.51 24.651.8 25.26 25.62 25.711.1 23.53 23.83 23.920.4 24.66 25.05 25.19208
Combined Wind-Buoyancy Driven FlowTable 72. Scaled Temperature Data for Combined Wind-Buoyancy Driven Flow: Stacks OpenGround Floor-Columnm 5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3 20.39 20.48 20.61 20.86 21.09 21.35 21.64 21.802.3 20.40 20.49 20.63 20.86 21.06 21.33 21.55 21.671.4 20.46 20.54 20.70 20.92 21.12 21.33 21.45 21.540.6 20.51 20.59 20.77 21.02 21.21 21.30 21.33 21.40Ground Floor-Heated Zone5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3.2 20.35 20.43 20.54 20.84 21.10 21.34 21.68 21.912.5 20.39 20.45 20.56 20.81 21.07 21.28 21.63 21.921.8 20.45 20.52 20.63 20.84 21.06 21.28 21.66 22.041.1 20.48 20.56 20.67 20.93 21.78 21.35 22.50 22.780.4 20.94 21.10 21.43 21.87 22.07 22.52 22.71 22.88First Floor-South Columnm 5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3 20.39 20.48 20.70 20.96 21.15 21.43 21.79 22.042.3 20.40 20.49 20.70 20.92 21.15 21.37 21.73 21.931.4 20.46 20.54 20.69 20.89 21.10 21.34 21.71 21.870.6 20.51 20.59 20.72 20.93 21.16 21.40 21.76 21.95First Floor South-Heated Zone5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3.2 20.35 20.43 20.79 21.02 21.32 21.60 22.08 22.752.5 20.39 20.45 20.70 20.94 21.22 21.56 22.08 22.801.8 20.45 20.52 20.71 20.95 21.22 21.56 22.01 22.761.1 20.48 20.56 20.88 21.17 21.44 21.65 22.15 22.700.4 20.94 21.10 20.75 20.92 21.05 21.25 21.76 22.01First Floor-North Columnm 5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3 20.39 20.54 20.70 21.37 21.92 22.56 22.73 22.992.3 20.40 20.51 20.65 20.91 21.12 21.90 22.10 22.441.4 20.46 20.64 20.80 21.10 21.26 21.28 21.53 21.760.6 20.51 20.73 20.92 21.32 21.50 21.67 21.99 22.16First Floor-North Heated Zone5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3.2 20.35 20.84 21.25 21.97 22.17 22.35 22.62 22.672.5 20.39 20.70 20.85 21.20 21.45 21.68 22.00 22.141.8 20.45 21.07 22.20 22.89 23.10 23.24 23.52 23.721.1 20.48 20.70 21.38 22.16 22.34 22.54 22.79 22.940.4 20.94 20.69 20.86 21.43 21.69 21.92 22.28 22.39Second Floor Columnm 5m/s 4m/s 3m/s 2m/s 1.5m/s 1m/s 0.7m/s 0.5m/s3 20.42 20.51 20.91 22.45 22.92 23.25 23.86 24.092.3 20.40 20.48 20.66 21.16 22.61 22.91 23.62 23.751.4 20.42 20.49 20.65 20.86 21.11 21.72 22.26 22.62209
Page 2 and 3:
Thesis Committee:Leon R. Glicksman,
Page 4 and 5:
Table of ContentsTable of Contents
Page 6 and 7:
7.1.3 Full Model Case .............
Page 8 and 9:
Figure 41. Wind Direction Data for
Page 10 and 11:
List of TablesTable 1. Energy End U
Page 12 and 13:
Table 64. Comparison of Dimensionle
Page 15 and 16:
Chapter 1.0IntroductionEnergy consu
Page 17 and 18:
insulated building envelopes with t
Page 19 and 20:
energy usage and efficient design.
Page 21 and 22:
Figure 3. European Patent Office Bu
Page 23:
selecting boundary conditions) to e
Page 26 and 27:
2.2.1 Buoyancy-Driven VentilationVe
Page 28 and 29:
Figure 7. Neutral Pressure Level fo
Page 30 and 31:
Combined wind-buoyancy flow is more
Page 32 and 33:
design. The depth of natural ventil
Page 34 and 35:
of cooling required by 30 percent o
Page 36 and 37:
considered when determining how the
Page 38 and 39:
environmental conditions are examin
Page 40 and 41:
As natural ventilation is prevalent
Page 43 and 44:
Chapter 3.0Evaluation of Prototype
Page 45 and 46:
Figure 12. Interior Atrium ViewFigu
Page 47 and 48:
Table 8. Prototype Building Window
Page 49 and 50:
Figure 15. HOBO® H8 Series Tempera
Page 51 and 52:
Finally, airflow visualization was
Page 53 and 54:
only is the airflow almost never at
Page 55 and 56:
Table 10. Window Bag Device Measure
Page 57 and 58:
Mon 7-21Tue 7-22Wed 7-23Thu 7-24Fri
Page 59 and 60:
12:00 AM1:00 AM2:00 AM3:00 AM4:00 A
Page 61 and 62:
27-Jul27-Jul28-Jul28-Jul29-Jul30-Ju
Page 63 and 64:
A range of air exchange rates was f
Page 65 and 66:
the windows on the second floor, or
Page 67 and 68:
Total Electric (kWh/m2)Total Gas (k
Page 69 and 70:
movement, Houghton Hall has much le
Page 71 and 72:
Chapter 4.0Modeling and Visualizati
Page 73 and 74:
for future design of similar type b
Page 75 and 76:
lower and upper openings and natura
Page 77 and 78:
the acceptable diffusion rate, or
Page 79 and 80:
applications involving full-scale b
Page 81 and 82:
digital camera with both manually o
Page 83 and 84:
Chapter 5.0Dimensional Analysis and
Page 85 and 86:
u oHgHT2uocu Hpo1Re Ar1Re Pr(5.7)(5
Page 87 and 88:
X HM X HP(5.16)5.3.2 Kinematic Sim
Page 89 and 90:
Radiation was found to have an impa
Page 91:
height is used for the full-scale b
Page 94 and 95:
6.3 Model Descriptions6.3.1 Physica
Page 96 and 97:
Figure 30. Floor Plan of the Protot
Page 98 and 99:
Figure 31. North Facade of Model wi
Page 100 and 101:
Monitoring data collected from the
Page 102 and 103:
By default, there was no accounting
Page 104 and 105:
40-location card inserted into the
Page 106 and 107:
6.5 ExperimentsTo evaluate the mode
Page 108 and 109:
modified to determine the impact of
Page 110 and 111:
Figure 39. Two Heated Zone ModelWit
Page 112 and 113:
minute interval, the model was assu
Page 114 and 115:
Figure 42. Cross-Section of Wind-Ge
Page 116 and 117:
Table 25. Wind-Assisted Ventilation
Page 118 and 119:
Figure 44. Heaters and Zones for a)
Page 120 and 121:
Height from Floor (m)Height from Fl
Page 122 and 123:
Where V is the outlet velocity, A o
Page 124 and 125:
Table 32. Conduction Heat Loss for
Page 126 and 127:
a) Air Modelb) Water ModelFigure 50
Page 128 and 129:
Height from Floor (m)The temperatur
Page 130 and 131:
Height from Floor (m)In the atrium
Page 132 and 133:
First NorthUpper Window 0.17 m/s -0
Page 134 and 135:
Height from Floor (m)the column at
Page 136 and 137:
Height from Floor (m)Height from Fl
Page 138 and 139:
Height from Floor (m)3.53.02.52.01.
Page 140 and 141:
was less than 12 percent. These val
Page 142 and 143:
Table 39. Variation of Outlet Wind
Page 144 and 145:
temperature of the air was the same
Page 146 and 147:
3.532.521.55m/s4m/s3m/s2m/s1m/s1.5m
Page 148 and 149:
3.532.521.55m/s4m/s3m/s2m/s1m/s1.5m
Page 150 and 151:
The average and exhaust internal bu
Page 152 and 153:
Table 43. Calculated Wind and Buoya
Page 154 and 155:
In the last two lines, for both the
Page 156 and 157:
Figure 80. CFD Simulation of the Te
Page 158 and 159: uoyancy case the air from the groun
Page 160 and 161: 160
Page 162 and 163: windows of naturally ventilated bui
Page 164 and 165: difficult to select the boundary co
Page 166 and 167: simulations are able to do would al
Page 168 and 169: Bordass, W.T., A.K.R. Bromley and A
Page 170 and 171: Linddament, M. 1996. Why CO2? Air I
Page 172 and 173: 172
Page 174 and 175: MODEL: K20-8SERIAL: 10047RECORDER_I
Page 176 and 177: 2 Boiler-3 50.00 C1 N1 1.0 ON ON OF
Page 178 and 179: |PW|DESCRIP |KW |KWH|KVA|KVH|------
Page 180 and 181: 2:5 ;day_ofYr17:P30 ;EOT = 0.000075
Page 182 and 183: 2:3136:P30 ;DUM2 = -0.040891:-4.089
Page 184 and 185: ;7:21 ;input location;8:0 ;mulptipl
Page 186 and 187: ;79:P22 ;EXC w/DELAY (only for dela
Page 188 and 189: 1:45 ;port5 (homeSense)2:31 ;exit l
Page 190 and 191: 13:P95 ;ENDIF14:P95 ;ENDIF15:P3 ;pu
Page 192 and 193: 2:20 ;RH30:P70 ;sample1:12:20 ;RH31
Page 194 and 195: 194
Page 196 and 197: Five Windows Open: Upper versus Low
Page 198 and 199: One Window Open: Upper versus Lower
Page 200 and 201: 25 cm / 3 m 24.33 26.62 22.68 22.93
Page 202 and 203: 25 cm / 3 m 24.07 25.26 22.65 22.78
Page 204 and 205: Two Stacks Open Temperature Stratif
Page 206 and 207: Stacks Closed Temperature Stratific
Page 210 and 211: 0.6 20.56 20.67 20.94 21.22 21.41 2
show all

Methodology for the Evaluation of Natural Ventilation in ... - Cham

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?