Desenvolvimento de pacotes computacionais para dimensionamento de rede de dutos de climatização e ventilação

Abstract

In some places it is not possible to install equipment that blow air directly in environmental conditioning. In these cases it is necessary to conduct the air till the environmental through ducts network. This work is a presentation the means used to transport the air conditioning or ventilation, as well as an analysis of the methods used in the design of these means and the presentation of a computer program developed in EXCEL for sizing ducts. The sizing should consider the available space, space air diffusion, noise, leaks in ducts, gains or losses of heat, balance, control of smoke and fire and costs. This work also object to provide the procedure for selection of accessories (registers,, grilles and diffusers) used in the process of conducting the air. To do this, known abacus and equations were used to calculate the pressure drop such as the continuity equation, the general equation for calculating the pressure drop and the abacus Moody. This work also includes a literature review on the main components of air operation. The data were processed and analyzed, and a discussion is presented, showing the influence that each of these points on the functioning and efficiency of air transport and distribution.