Backyard Backyard
B edroom B edroom
K itchen K itchen
Facade
Living Area Living Area
B athroom |
B athroom |
B edroom |
B edroom |
GR APHIC S CALE |
Metres |
F loor P lan |
S ection |
0.00 1.00 2.00 3.00 4.00 5.00
Figure 7: Floor plan, facade and section of the house model studied and location of the data-loggers
Results
Thermal Performance Assessment Occupants in residential buildings have a comprehensive flexibility to adjust their clothing and activities, as well as carrying out actions such as opening and closing windows to regulate natural ventilation, which allow them to feel comfortable. In this context and also aiming to promote energy conservation, the Adaptive Comfort Standard( ACS) from ASHRAE-55 was used to establish the neutral temperature and comfort limits for the region under this study. Results from a field study( Figueroa-Villamar et al. 2014) conducted in a very similar context and similar buildings, validated the use of the Adaptive Comfort Standard( ACS). The neutral temperature( Tn) and comfort zone for each monitored season were calculated using ACS, the thermal boundaries were defined for 90 % of occupant acceptability at 5 K( 2.5 ° C on either side of the neutral temperature) and for 80 % of occupant acceptability at 7 K( 3.5 ° C on either side of the neutral temperature). For relative humidity a range between 30 % and 80 % is still acceptable( ASHRAE-55, 2004; CIBSE, 2006; Szokolay and Docherty, 1999; ISO-7730, 1994).
Table 2 presents the comfort temperatures and thermal boundaries for 90 % and 80 % of occupant acceptability on each season. Tn was calculated using the formula from ACS, the average outdoor temperatures, provided by a local meteorological station were calculated over the 42 monitored days of each season. Once the boundaries were established, the measurements were compared against the comfort zone to evaluate the thermal performance. The nomenclature established in Table 3 has been used in the analysis of this study to identify the rooms and its orientation.
Thermal performance of industrialised housing construction in Centra 231