Climate Characteristics
Rough characterization of a climate for the north, south and east (=West)-side, each with (40 W/m2 form 0800 am to 0500 pm) and without internal sources:
Zero-energy-hours (ZEH): Number of zero-energy-hours attainable
Gain-to-loss (gama): Best values for gamma for a maximum of ZEH.
Structure: determines the best time-constant tau
Sun-shading: indicates the best position for sun-shading device: no, internal, external.
Sensitivity to gain-to-loss: verbal indication of the sensitivity of ZEH to deviations of gamma from the best values: “weak”,”middle”,”strong”
Sensitivity to time-constant: verbal indication of the sensitivity of ZEH to deviations of tau from the best values: “weak”,”middle”,”strong”
Sensitivity to sun-shading: verbal indication of the sensitivity of ZEH to changes of the position of the sun-shading device.
“weak”: a deviation of 10 to 15% form the best values causes almost no change of ZEH
“middle”: a deviation of 10 to 15% results in a change of ZEH of also about 15%
“strong”: a deviation of 10 to 15% results in a change of ZEH of more than 15%