Book - School of Science and Technology

Solar heat gains 81Table 3.5 Correction factors (applying to Table 3.4 only)Glazing configuration(inside to outside)Correction factor for statedbuilding responseGlazing typeGlazing configuration(inside to outside)Correction factor for statedbuilding responseFast Slow Fast SlowClear 1.00 0.89 Clear/clear/absorbing 0.46 0.39Absorbing 0.74 0.64Reflecting 0.67 0.59 Low-E/clear 0.81 0.69Low-E/reflecting 0.52 0.44Clear/clear 0.83 0.71 Low-E/absorbing 0.55 0.47Clear/reflecting 0.53 0.46Clear/absorbing 0.56 0.47 Low-E/clear/clear 0.70 0.59Low-E/clear/reflecting 0.44 0.38Clear/clear/clear 0.71 0.60 Low-E/clear/absorbing 0.46 0.39Clear/clear/reflecting 0.44 0.38Additional factor forair temperaturecontrol0.86 0.83Table 3.6 Solar cooling for fast-response building with single clear glazing: SE England, intermittent shadingDateOrientationSolar cooling load at stated sun time …W m 2 †0730 0830 0930 1030 1130 1230 1330 1430 1530 1630 1730Mar 29 N 34 46 58 68 76 79 80 76 68 57 45NE 144 167 129 76 90 90 91 86 78 68 55E 216 262 256 202 77 118 105 93 85 74 61SE 297 271 315 318 290 228 83 147 94 75 60S 47 201 214 271 311 318 297 253 187 68 106SW 58 71 85 105 282 267 316 337 319 258 99W 45 58 71 81 89 100 222 230 268 252 188NW 51 64 77 87 95 98 99 98 83 138 180Apr 28 N 64 80 87 95 101 106 107 102 96 86 80NE 223 189 85 121 124 121 122 117 111 101 90E 325 347 312 242 104 150 139 127 121 111 99SE 261 322 341 331 292 224 93 138 122 103 91S 59 177 194 248 284 293 271 230 166 62 92SW 68 83 95 112 238 249 304 335 329 291 216W 74 89 101 109 115 127 258 269 320 332 285NW 72 87 99 107 114 118 119 122 209 206 214May 29 N 109 111 116 121 126 129 129 125 120 114 109NE 263 227 107 163 148 140 139 135 130 122 111E 344 355 325 255 116 163 150 140 136 127 116SE 251 301 323 310 265 197 88 122 122 109 98S 70 80 253 217 248 254 236 195 74 143 79SW 80 93 104 117 205 222 280 312 310 280 223W 96 109 120 128 133 141 269 280 334 354 330NW 92 105 116 123 129 132 132 139 260 243 266Jun 21 N 134 128 131 135 140 142 143 140 136 133 129NE 303 255 124 182 161 152 152 150 146 138 129E 388 385 343 268 128 173 160 153 149 142 132Continued on p. 82