Design Temperatures
Design Temperatures
(OP)
Summer design temperatures in most countries are 24C where as typical winter design temperatures vary from 19~21 C.What is the reason for adopting different temperatures for summer and winter from a thermal comfort perspective?





RE: Design Temperatures
For an excellent discussion on thermal comfort, go to www.squ1.com and go to Thermal Comfort submenu under Efficient Design menu.
Regards,
RE: Design Temperatures
The 'legal' maximum in the UK is 19 (After the energy crisis in the seventies--the act I don't think was ever repealed----plus the fact that nobody ever takes any notice of it anyway)
There is no legal max temp (UK only)
Friar Tuck of Sherwood
RE: Design Temperatures
1. the difference in temperature between outdoor and indoor has to be kept to lowest practicable to avoid thermal shocks.Some standards like the Russian SNIP standards even suggest a max deltaT of 8 deg K(does not make sense when temp can be as low as -30Deg C)
2. The RH in winter is acceptable at 40% for winter, and to maintain RH at 40% even at a low temp of 18 Deg DB, the amount of humidification required and the related energy is of considerable magnitude, and if room design temp were to be higher the humidification load also increases tremendously'
UB313
RE: Design Temperatures