INDOOR DESIGN CONDITIONS
INDOOR DESIGN CONDITIONS
(OP)
Hi, I have been looking for the answer of one basic question for so long and I hope I will find some interesting answers here. My question is related to Indoor design conditions. In summer, we generally keep indoor temperature 24C. But in winter why the indoor temperature is set to 21C. Irrespective of the season, the human comfort remains the same within the building. Please explain.





RE: INDOOR DESIGN CONDITIONS
When it is cold outside (winter) people will wear warmer clothing which they will also wear when going indoors. Therefore, 21 degrees inside is more than enough.
In summer, people dress lightly and 24 degrees is considered comfortable.
RE: INDOOR DESIGN CONDITIONS
RE: INDOOR DESIGN CONDITIONS
In winter, higher than 21 degrees is not needed. And, depending on the outdoor climate you are in, 24 degrees inside in summer might also be too low.
Cold winter air is very dry. Bringing this into the building can cause problems for people with contact lenses, for instance.
So, humidity does have some comfort issues attached to it. But, having humidification in an office HVAC system is a bit of a luxury. For hospitals, it is more necessary.
RE: INDOOR DESIGN CONDITIONS
RE: INDOOR DESIGN CONDITIONS
RE: INDOOR DESIGN CONDITIONS