Research Article
Development of Regression Models considering Time-Lag and Aerosols for Predicting Heating Loads in Buildings
Table 17
Regression coefficients for a DOE medium office building depending on different models.
| Coefficientsa | Model | Unstandardized coefficients | Standardized coefficients | t | Sig. | Collinearity statistics | B | Std. error | Beta | Tolerance | VIF |
| Modified model | (Constant) | −332178078.900 | 19450841.631 | — | −17.078 | 0.000 | — | — | Dew point temperatures | −1278243.171 | 27,075.391 | −0.770 | −47.211 | 0.000 | 0.125 | 8.002 | Relative humidity | 318029.341 | 8735.744 | 0.402 | 36.406 | 0.000 | 0.274 | 3.656 | Atmospheric station pressure | 2937.887 | 190.743 | 0.118 | 15.402 | 0.000 | 0.567 | 1.764 | Horizontal infrared radiation | 66,114.532 | 2691.386 | 1.094 | 24.565 | 0.000 | 0.017 | 59.610 | Global horizontal radiation | −90530.015 | 2306.310 | −1.149 | −39.253 | 0.000 | 0.039 | 25.744 | Direct normal radiation | 59,029.740 | 1259.159 | 0.814 | 46.880 | 0.000 | 0.110 | 9.069 | Diffuse radiation | 109882.074 | 2972.907 | 0.682 | 36.961 | 0.000 | 0.098 | 10.234 | Total sky cover | −3968922.089 | 158298.925 | −1.014 | −25.072 | 0.000 | 0.020 | 49.187 | Wind speed | −640957.692 | 68,159.260 | −0.062 | −9.404 | 0.000 | 0.754 | 1.327 | Visibility | −340103.073 | 171843.921 | −0.014 | −1.979 | 0.048 | 0.682 | 1.466 |
| New model | (Constant) | −137086417.229 | 19542748.049 | — | −7.015 | 0.000 | — | — | Dew point temperatures | −112436.116 | 27,307.607 | −0.136 | −4.117 | 0.000 | 0.151 | 6.625 | Atmospheric station pressure | 1264.005 | 192.177 | 0.107 | 6.577 | 0.000 | 0.623 | 1.604 | Horizontal infrared radiation | 47,644.241 | 3375.835 | 1.556 | 14.113 | 0.000 | 0.014 | 73.809 | Direct normal radiation | 16,462.981 | 1213.513 | 0.178 | 13.566 | 0.000 | 0.962 | 1.040 | Total sky cover | −2787320.969 | 196312.532 | −1.437 | −14.198 | 0.000 | 0.016 | 62.171 | Dry bulb temperatures | −581774.230 | 37,805.690 | −0.586 | −15.389 | 0.000 | 0.114 | 8.794 | AOD | −566944.126 | 182564.249 | −0.042 | −3.105 | 0.002 | 0.879 | 1.137 | Precipitable water | 1076401.110 | 240985.736 | 0.080 | 4.467 | 0.000 | 0.512 | 1.955 |
| Limited model | (Constant) | −263437804.945 | 21012890.768 | — | −12.537 | 0.000 | — | — | Dry bulb temperatures | −1285938.756 | 75,197.392 | −0.692 | −17.101 | 0.000 | 0.023 | 43.618 | Dew point temperatures | 582520.586 | 80,798.698 | 0.351 | 7.210 | 0.000 | 0.016 | 63.097 | Relative humidity | −152490.019 | 22,022.183 | −0.193 | −6.924 | 0.000 | 0.049 | 20.572 | Atmospheric station pressure | 2831.572 | 203.680 | 0.114 | 13.902 | 0.000 | 0.561 | 1.781 | Global horizontal radiation | 13,177.043 | 602.849 | 0.167 | 21.858 | 0.000 | 0.642 | 1.557 | Wind speed | −445559.152 | 71,983.529 | −0.043 | −6.190 | 0.000 | 0.763 | 1.310 | Total sky cover | −153324.249 | 27,559.024 | −0.039 | −5.563 | 0.000 | 0.758 | 1.320 |
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aDependent variable: heating load of a DOE medium office building.
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