Confort higrotérmico para actividades en espacios exteriores: periodo cálido, en clima cálido seco extremo

Abstract

The duration of outdoor activities in extreme dry in warm weather, depends on the hygrothermal comfort conditions for users. In addition to the thermal environment conditions there are risks such as dehydration or Heat Stroke. The objective of this study was to estimate the comfort conditions for temperature and relative humidity of outdoor users of a recreational center in Mexicali, Baja California, Mexico. This work shows the estimated neutral temperatura, neutral relative humidity and thermal comfort ranges during the warm period for a public recreational green area located on a desert climate. A questionnaire was designed based on the scale of thermal sensation of ISO 10551 were measured dry bulb temperatura and relative humidity. A total of 822 questionnaires were applied during the months of July and August 2008. By estimated neutral temperatura, neutral relative humidity and comfort range with a statistical method of correlation. The analysis was done for three activity levels: passive, moderate e intense, besides the three levels together. The period of climate analyzed was asymmetric. The neutral temperature values obtained are approximately symmetrical with respect to the thermal comfort range, while the relative humidity comfort for moderate and intensity activity was asymmetric. The neutral temperatures and relative humidity obtained show that the intense activity in subjects with regular exercise and practice habits appropriate to the weather conditions, had a temperature of comfort similar to subjects with passive activity.