SIMULASI NATURAL VENTILATION PADA BANGUNAN RUMAH TIPE 36 DENGAN MENGGUNAKAN CFD

Abstract

Tropical house of type in general is having openings sufficient to produce flow ventilation to achieve the level of comfort and health space. This research is in order to analyze the natural system ventilation house on a tropical type of type 36 in the area of Semarang. The purpose of this study was to determine the value of air change per hour or a change of water per hour on the house type, and also to determine the pattern of air movement that occurs naturally in the room. Numerical methods in use in this study is a numerical simulation with Fluent 6.3.26 software. In this program the formula used is based on the equation of the general equation of flow (continuity, momentum, etc.). The results of this study indicate that natural ventilation system during the day can be run well by doing some variation of the inlet openings are made, whereas for natural systems ventilation at night to do some modifications to the ventilation openings in order to achieve the desired results. Ventilation system and the chimney or stack effect can work well when the wind speed is very low or even v = 0 m / s.