Table 1.
Experiment conditions-Room 1.
Table 2.
Experiment conditions-Room 2.
Table 3.
Indoor environmental parameters.
Figure 1.
The changing process of TSV in the experiment in response to temperature step change.
The vertical axis is TSV(thermal sensation vote), and the horizontal axis is time——τ (min). This figure shows TSV changing as time in the three step-change temperature conditions ——12-22-12°C (rhombus label), 15-22-15°C (square label), 17-22-17°C (triangle label).
Figure 2.
The change of human mean skin temperature over time in response to temperature step change.
The vertical axis is mean skin temperature, and the horizontal axis is time——τ (min). This figure shows mean skin temperature changing as time in the three step-change temperature conditions ——12-22-12°C (rhombus label), 15-22-15°C (square label), 17-22-17°C (triangle label).
Table 4.
Time to stabilize for human mean skin temperature.
Figure 3.
The relation between thermal sensation and skin temperature.
The vertical axis is TSV(thermal sensation vote), and the horizontal axis is mean skin temperature (°C). This figure shows the relation between thermal sensation and mean skin temperature in the transient process from cool to neutral (square label) and from neutral to cool (triangle label). The transient process means step-change period till mean skin temperature stable.
Figure 4.
The relationship between gradient thermal sensation and gradient of skin temperature.
The vertical axis is delta TSV(thermal sensation vote), and the horizontal axis is gradient of mean skin temperature (°C /min). This figure shows the relation between the gradient thermal sensation and the gradient of mean skin temperature in the transient process from cool to neutral (square label) and from neutral to cool (triangle label). The transient process means step-change period till mean skin temperature stable.
Figure 5.
The Relationship between TSV and Heat Loss from Skin Surface.
The vertical axis is TSV (thermal sensation vote), and the horizontal axis is heat loss from skin surface (W/m2). This figure shows the relation between thermal sensation and heat loss from skin surface in the transient process both from cool to neutral and from neutral to cool. The transient process means step-change period till mean skin temperature stable.
Table 5.
Verification of Hosmer-Lemeshow.
Table 6.
Variables in the equation.
Figure 6.
Two-dimensional logistic regression model.
This figure shows the model predicting acceptable probability of temperature step change. The vertical axis is acceptable probability of the temperature step change, and the horizontal axis is ΔT (temperature after step change minus the one in previous environment). In the questionnaire, it is reported whether the temperature step change is acceptable or not. “Acceptable” is valued as 1 and “unacceptable” is valued as 0.
Table 7.
Comparison among different countries' results on temperature step change.
Figure 7.
The changing process of TCV in the experiment in response to temperature step change.
The vertical axis is TCV(thermal comfort vote), and the horizontal axis is time——τ(min). This figure shows TCV changing as time in the three step-change temperature conditions ——12-22-12°C (rhombus label), 15-22-15°C (square label), 17-22-17°C (triangle label). ‘0’ means comfort. ‘1’ means- a little uncomfortable. ‘2’ means uncomfortable. ‘3’ means very uncomfortable.