INCIHUSA   20883
INSTITUTO DE CIENCIAS HUMANAS, SOCIALES Y AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
TRANSITIONAL SPACES: DAYLIGHT IMPACT IN MODELLING LIGHTING
Autor/es:
LASAGNO, CECILIA; PATTINI, ANDREA; RODRIGUEZ, ROBERTO; COLOMBO, ELISA
Revista:
BUILDING AND ENVIRONMENT
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: USA; Año: 2009
ISSN:
0360-1323
Resumen:
Abstract: Transition spaces are characterized by possessing high gradients of luminances, which implies a great demand for the users' visual system functioning. This work poses the hypothesis that a satisfactory descriptive indicator for this kind of scenes could be a "modelling factor" (MF) defined from cylindrical illuminance (Ec) and horizontal illuminance measures (Eh). That MF would provide information about the depth and dimensionality of objects present in the scene. With the objective of monitoring solar light behaviour and its interaction with the transition space, measurements were taken during June, winter solstice (21 June, 2008 and 2009) under clear skies at the beginning and at the ending of the working day (9:15hs and 13:00hs). In addition to that, another measurement was taken under a June overcast sky at 13:00hs, to have a comparative parameter. We found that the most unfavourable condition was produced at 13:00hs (midday) whereas for the 9:15hs we found MF values that fall into the optimum range; except for only one point from June 2008 which was out of range. The Modelling Factor is a valuable transitional space assessment tool which allows the integration of the most relevant factors intervening in this kind of spaces. This tool also takes into consideration the characteristics of the human visual system given that it proposes a certain range where lighting conditions allow a correct appraisal of the space and object modelling