Optimization of Energy Consumption in Net-Zero Energy Buildings with Increasing Thermal Comfort of Occupants

Table 4

Site data and comfort for different months of a year.

Data/month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Air temp. (°C)	23.7	24.2	25.7	26.9	29.1	30.7	31.4	31.8	30.4	27.8	25.5	23.7
Radiant temp. (°C)	24.9	25.6	27.3	29.1	31.4	32.8	33.6	33.7	32.5	29.8	27.1	24.8
Operative temp.(°C)	24.3	24.6	26.5	28.0	30.2	31.7	32.5	32.8	31.5	28.8	26.3	24.3
Outside dry-bulb temp. (°C)	17.9	19.1	23.2	26.6	30.6	33.0	34.2	33.3	32.0	28.8	23.4	18.5
Outside dew-point temp. (°C)	9.4	12.0	15.5	18.2	22.3	24.2	26.7	27.2	24.6	20.8	13.5	11.8
Wind speed (m/s)	2.2	2.3	3.2	2.4	3.3	2.9	3.7	4.1	3.2	1.6	2.1	2.8
Wind direction (deg)	107.3	131.2	128.5	108.0	126.8	131.2	130.3	135.3	143.5	68.4	123.6	144.7
Solar altitude (deg)	-13.0	-8.3	-1.3	6.2	11.8	14.3	13.2	8.8	2.0	-5.5	-11.5	-14.2
Solar azimuth (deg)	189.8	190.2	191.8	193.9	194.9	194.2	193.0	193.2	194.7	195.8	194.5	191.1
Atmospheric pressure (kPa)	101.5	101.4	101.3	101.0	100.5	99.8	99.5	99.6	99.9	100.2	100.8	101.1
Direct normal solar (kWh)	108.5	104.8	135.9	114.9	119.3	163.6	123.2	139.9	117.3	106.8	95.2	95.0
Diffuse horizontal solar (kWh)	103.1	131.3	121.8	183.7	196.7	156.6	158.1	147.5	156.3	139.0	111.8	98.0