This work analyzes the effect of prototypical apartments’ orientation on indoor thermal comfort. The apartments are located in a residential building block in October 6th city in the hot-arid climate of Greater Cairo, Egypt. Indoor air temperature (Ta,in) and relative humidity (RHin) were monitored in three hour intervals in the summer season of 2013 during the last two days of June. Outdoor measurements for the ambient temperature and relative humidity for the month of June were obtained from the Meteorological Authority. the comfort zone for the reference case was specified by using ASHRAE psychrometric chart. This is considered the second part of a study that was conducted in the winter season of 2013 to discuss the effect of orientation on indoor thermal comfort for the same reference case in January. A visual survey was conducted in order to analyze the construction materials and façade features of the buildings. Personal observations, field measurements and ASHRAE psycrometric chart analyses show that there is significant thermal discomfort inside the apartments. Furthermore, comparing the three orientations; Northern, Eastern and Western showed that whilst the Northern has a little difference, there is no significant effect on thermal comfort indoors between Eastern and Western orientations.
Effect of Orientation on Indoor Thermal Neutrality in Summer Season in Hot Arid Climates
SEDKI YASSIN, Ali;ZAFFAGNINI, Theo
2013
Abstract
This work analyzes the effect of prototypical apartments’ orientation on indoor thermal comfort. The apartments are located in a residential building block in October 6th city in the hot-arid climate of Greater Cairo, Egypt. Indoor air temperature (Ta,in) and relative humidity (RHin) were monitored in three hour intervals in the summer season of 2013 during the last two days of June. Outdoor measurements for the ambient temperature and relative humidity for the month of June were obtained from the Meteorological Authority. the comfort zone for the reference case was specified by using ASHRAE psychrometric chart. This is considered the second part of a study that was conducted in the winter season of 2013 to discuss the effect of orientation on indoor thermal comfort for the same reference case in January. A visual survey was conducted in order to analyze the construction materials and façade features of the buildings. Personal observations, field measurements and ASHRAE psycrometric chart analyses show that there is significant thermal discomfort inside the apartments. Furthermore, comparing the three orientations; Northern, Eastern and Western showed that whilst the Northern has a little difference, there is no significant effect on thermal comfort indoors between Eastern and Western orientations.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
