Estudo de caso - viabilidade de substituição do sistema de climatização de uma edificação de ensino

Abstract

This work presents a case study on the design and choice of an appropriate air conditioning system for an educational building, aiming at thermal comfort and energy efficiency. The sizing was accomplished according to the results obtained through computer simulations regarding the incidence of thermal load in the evaluated environments, It was also verified the feasibility of changes in the infrastructure of the place in order to reduce the necessary air conditioning power. Three different systems were evaluated: a Split System based on split-type equipment, a system with variable refrigerant flow (VRV) and a VRV system designed in conjunction with the reduction of the height of the rooms to be air-conditioned. With the characteristics of the designed systems, a comparison was made between energy consumption and economic viability between the alternatives, where it was concluded that in the current economic scenario (due to the high equipment cost and high inflation rate) it is not economically advantageous to replace the equipment, however the proposed alternatives resulted in a marked reduction in the consumption of electric energy.