| Title |
An Experimental Study on the Thermal Effects pf Unheated Spaces in Residential Building |
| Abstract |
ASHRAE standard suggests that temperatures in unheated spaces largely exposed to outdoors be assumed to be the same as that of the outdoors. This study, raising questions to the above comment of ASHRAE, is to find out the factors affecing the temperature changes in unheated spaces and to suggest the role of such spaces in energy consumption and indoor thermal environment through in-situ test of a residential building.The main findings under the test condition are as follows.1) Temperatures of unheated spaces were well above that of the outdoors, averaging 12 C above at south-sacing unheated space while 8 C above at north-facing one.2) Removal of unheated spaces exposed to outdoors compared with the original condition required 42% increase of energy consumption resulting 1.1 C decrease of indoor temperature with extended temperature swing.In conclusion, unheated spaces exposed to outdoors can play an important role in the improvement of indoor thermal environment as well as effective energy saving. |