In recent years, energy consumption from electrical devices to foster air movement in regions with warm climates has risen, the resulting negative impact on environment. The purpose of this paper is evaluate performance a solar chimney used induce natural ventilation closed space, under weather conditions hot humid Mexican climate. For purpose, CFD simulations were run using RNG k- ɛ turbulence...

This work presents an overview of (passive) solar chimney research, from the natural convection fundamentals to recent progress for achieving thermohydraulic best-performance. Solar chimneys are attractive because they contribute increasing efficiency in air conditioning processes dwellings and buildings, therefore also aid reduction greenhouse gas emissions. A wide number works dealing with (a...

Solar chimneys are devices that use solar energy to generate a hot airflow can be used for power production, the drying of agricultural products, and/or water desalination. The performance small-scale chimney is studied numerically. computational domain includes chimney, ground, and atmosphere. turbulent simulated using commercial CFD code Ansys Fluent. only boundary conditions required simulat...

Chimneys are mud mounds built by fiddler crabs that encircle the entrance to their burrow. Their function in many species is unknown. In Uca capricornis, crabs of both sexes and all sizes build chimneys, but females do so disproportionately more often. There are no differences in the immediate physical or social environments between crabs with and without a chimney. Chimney owners spend less ti...