Análise psicrométrica em sistemas de condicionamento de ar

Abstract

The purpose of this work is to analyze different air conditioning systems aiming to reduce the required power demand. The proposed cycles consist of the conventional cycle, mixed air bypass (internal bypass), return air bypass (external bypass) and the hybrid cycle that integrates heat recovery and dehumidification devices such as desiccant rotor, regenerative rotor (heat wheel). The simulation of the cycles occurred by the implementation of FORTRAN language codes. The cities of Rio de Janeiro and Teresina were selected with the meteorological data taken from ASHRAE that occur with a frequency of 0.4% of the month. For these case studies the ability of bypass systems to replace the conventional system with reheating and reduce power demand by up to 37% was observed, while the hybrid cycle proved to be an excellent alternative reducing the power demand by up to 50% in addition to ensuring improvements in indoor air quality.