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A proposed building design has 10,000 sq ft of glass with shading coefficient 0.7, equally distributed north, south, east, and west.  What is the total solar load in tons on July 21 at 4:00 pm? Hint: Use the equation, Qsolar = A x SC x SHGF and find the SHGF values from the table

A proposed building design has 10,000 sq ft of glass with shading coefficient 0.7, equally distributed north, south, east, and west.  What is the total solar load in tons on July 21 at 4:00 pm? Hint: Use the equation, Qsolar = A x SC x SHGF and find the SHGF values from the table

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A proposed building design has 10,000 sq ft of glass with shading coefficient 0.7, equally distributed north, south, east, and west. 

What is the total solar load in tons on July 21 at 4:00 pm?

Hint: Use the equation, Qsolar = A x SC x SHGF and find the SHGF values from the table 

TABLE 2-15A (Continued) Solar Time, Solar Heat Gain Factors, Btuh/sq ft Solar Time, A.M. Altitude Azimuth Solar Position Direct Normal Irradiation, Btuh/sq ft N Date NE E SE S SW W NW Horizontal P.M. Half-day Totals 112 310 849 1100 692 218 112 112 764 Apr 21 7 88 143 7.4 98.9 89 11 72 52 4 4 4 11 18.9 89.5 207 16 141 201 16 14 14 14 61 8 30.3 79.3 253 22 128 225 189 41 21 21 21 124 41.3 67.2 275 26 80 203 204 83 26 26 26 177 10 51.2 51.4 286 30 37 153 194 218 32 30 52 33 121 30 11 58.7 29.2 292 33 34 81 161 146 33 244 12 61.6 0.0 294 33 33 36 108 155 108 36 33 253 Half-day Totals 153 509 969 1003 489 196 146 145 962 May 21 1.9 114.7 1 12.7 105.6 143 35 128 141 71 10 10 10 10 30 24.0 35.4 7 96.6 216 28 165 209 131 20 18 18 18 87 8 87.2 249 27 149 105 220 164 29 25 25 25 146 46.8 76.0 267 31 197 175 53 30 30 35 34 196 234 30 10 57.5 60.9 277 34 54 148 163 83 105 34 66.2 70.0 11 37.1 282 36 38 81 130 42 36 36 258 12 0.0 284 37 37 40 82 112 82 40 37 265 Half-day Totals 203 643 1002 874 356 194 171 170 1083 June 21 5 4.2 117.3 21 10 21 20 1 1 1 1 14.8 108.4 154 47 142 151 70 12 12 12 12 39 26.0 37 215 246 99.7 172 206 122 21 20 20 20 97 90.7 80.2 37.4 29 156 215 152 192 161 29 26 26. 26 153 9. 48.8 59.8 262 33 113 45 31 31 31 201 10 65.8 272 35 62 145 148 69 36 35 41 37 35 237 11 69.2 41.9 276 37 40 80 116 88 37 260 12 73.5 0.0 278 38 38 41 71 95 71 41 38 267 Half-day Totals 242 714 1019 810 311 197 181 180 1121 July 21 2.3 115.2 2 1 0 0 10 10 6. 13.1 106.1 137 37 125 68 204 127 137 10 10 31 7 24.3 97.2 208 30 163 20 19 19 19 88 8 35.8 87.8 241 28 148 32 106 216 160 29 26 26 26 145 47.2 76.7 259 194 170 52 31 31 31 194 231 10 57.9 61.7 269 35 56 146 159 80 36 35 35 11 66.7 37.9 274 37 39 81 127 102 42 37 37 255 12 70.6 0.0 276 38 38 41 80 109 80 41 38 282 Half-day Totals 211 645 986 850 347 197 177 176 1074 Aug 21 7.9 99.5 80 12 67 82 48 5 15 15 11 19.3 90.0 79.9 67.9 191 17 135 191 135 17 15 62 122 8. 30.7 236 23 126 216 180 40 22 22 28 28 22 41.8 259 28 82 197 196 149 187 79 28 174 10 51.7 50.3 62.3 52.1 271 32 40 116 34 32 32 213 11 29.7 277 279 34 35 35 81 156 140 52 34 34 238 1 12 0.0 35 38 105 149 105 38 35 247 O543212 76542 212 76543212 76543212 O 5432-2 69 5678 56
Transcribed Image Text:TABLE 2-15A (Continued) Solar Time, Solar Heat Gain Factors, Btuh/sq ft Solar Time, A.M. Altitude Azimuth Solar Position Direct Normal Irradiation, Btuh/sq ft N Date NE E SE S SW W NW Horizontal P.M. Half-day Totals 112 310 849 1100 692 218 112 112 764 Apr 21 7 88 143 7.4 98.9 89 11 72 52 4 4 4 11 18.9 89.5 207 16 141 201 16 14 14 14 61 8 30.3 79.3 253 22 128 225 189 41 21 21 21 124 41.3 67.2 275 26 80 203 204 83 26 26 26 177 10 51.2 51.4 286 30 37 153 194 218 32 30 52 33 121 30 11 58.7 29.2 292 33 34 81 161 146 33 244 12 61.6 0.0 294 33 33 36 108 155 108 36 33 253 Half-day Totals 153 509 969 1003 489 196 146 145 962 May 21 1.9 114.7 1 12.7 105.6 143 35 128 141 71 10 10 10 10 30 24.0 35.4 7 96.6 216 28 165 209 131 20 18 18 18 87 8 87.2 249 27 149 105 220 164 29 25 25 25 146 46.8 76.0 267 31 197 175 53 30 30 35 34 196 234 30 10 57.5 60.9 277 34 54 148 163 83 105 34 66.2 70.0 11 37.1 282 36 38 81 130 42 36 36 258 12 0.0 284 37 37 40 82 112 82 40 37 265 Half-day Totals 203 643 1002 874 356 194 171 170 1083 June 21 5 4.2 117.3 21 10 21 20 1 1 1 1 14.8 108.4 154 47 142 151 70 12 12 12 12 39 26.0 37 215 246 99.7 172 206 122 21 20 20 20 97 90.7 80.2 37.4 29 156 215 152 192 161 29 26 26. 26 153 9. 48.8 59.8 262 33 113 45 31 31 31 201 10 65.8 272 35 62 145 148 69 36 35 41 37 35 237 11 69.2 41.9 276 37 40 80 116 88 37 260 12 73.5 0.0 278 38 38 41 71 95 71 41 38 267 Half-day Totals 242 714 1019 810 311 197 181 180 1121 July 21 2.3 115.2 2 1 0 0 10 10 6. 13.1 106.1 137 37 125 68 204 127 137 10 10 31 7 24.3 97.2 208 30 163 20 19 19 19 88 8 35.8 87.8 241 28 148 32 106 216 160 29 26 26 26 145 47.2 76.7 259 194 170 52 31 31 31 194 231 10 57.9 61.7 269 35 56 146 159 80 36 35 35 11 66.7 37.9 274 37 39 81 127 102 42 37 37 255 12 70.6 0.0 276 38 38 41 80 109 80 41 38 282 Half-day Totals 211 645 986 850 347 197 177 176 1074 Aug 21 7.9 99.5 80 12 67 82 48 5 15 15 11 19.3 90.0 79.9 67.9 191 17 135 191 135 17 15 62 122 8. 30.7 236 23 126 216 180 40 22 22 28 28 22 41.8 259 28 82 197 196 149 187 79 28 174 10 51.7 50.3 62.3 52.1 271 32 40 116 34 32 32 213 11 29.7 277 279 34 35 35 81 156 140 52 34 34 238 1 12 0.0 35 38 105 149 105 38 35 247 O543212 76542 212 76543212 76543212 O 5432-2 69 5678 56
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