A Solar Heating and Cooling System in a Nearly Zero-Energy Building: A Case Study in China

Table 2

Outdoor climate parameters for system design in Beijing.

Parameters	Unit	Value
Temperature for heating	°C	−7.6
Temperature for ventilation in winter	°C	−3.6
Temperature for air conditioning in winter	°C	−9.9
Relative humidity for air conditioning in winter	%	44
Dry-bulb temperature for air conditioning in summer	°C	33.5
Wet-bulb temperature for air conditioning in summer	°C	26.4
Temperature for ventilation in summer	°C	29.7
Relative humidity for ventilation in summer	%	61
Average temperature for air conditioning in summer	°C	29.6
Average wind speed in summer	m/s	2.1
Average wind speed in winter	m/s	2.6