Abstract—This paper presents the validation of two daylight
dynamic predictive metrics, obtained through simulation with
DaySim 3.2 tool: Daylight Autonomy (DA) and Continuous
Daylight Autonomy (DAC). To that effect, a validation protocol
is developed, in which the annual results of the predictive
simulation model are compared to the illuminance values
measured during a whole year into an existing test cell, located
in Seville (Spain), which is used as a reference. After trials it
was found that, for three illuminance thresholds of 100, 250 and
500 lux, the mean difference of daylight autonomy between
measurements and dynamic simulations is lower of 2% with a
standard deviation of 6.8%, and the mean difference for
continuous daylight autonomy is 1.0% with a standard
deviation of 4.9%. It is concluded that the use of these two
metrics by calculation with DaySim tool is adequate for
small-sized rooms with one window, located in the
Mediterranean area. The exposed methodology allows to
validate the use of these indicators in rooms with variable size,
window size and location, so further investigation is required.
Index Terms—Daylight autonomy, field experiments, energy
saving, useful daylight illuminance, window.
M. A. Campano, I. Acosta, A. L. León and C. Calama are with the
Department of Building Construction I, Universidad de Sevilla, Spain
(e-mail: mcampano@us.es, iacosta@us.es, leonr@us.es and
ccalama@us.es).
[PDF]
Cite: M. A. Campano, I. Acosta, A. L. León, and C. Calama, "Validation Study for Daylight Dynamic Metrics by Using
Test Cells in Mediterranean Area," International Journal of Engineering and Technology vol. 10, no. 6, pp. 487-491, 2018.
