Comparação dos sistemas de resfriamento evaporativos, de acordo com sua performance, utilizando o índice de bulbo úmido termômetro de globo (IBUTG) como parâmetro

Abstract

Thermal comfort in industrial sectors can be harmed if there is not an adequate air conditioning system to acclimatize the workplaces, as the thermal load that can be generated inside these industries can result in an increase in temperature, making the place of unhealthy work. However, conditioning the air of an entire industry ends up becoming unfeasible due to the energy consumption required by the air conditioners. In this context, evaporative cooling can have benefits, as it is a means of air conditioning that uses only renewal air and aims to achieve lower temperature conditions than those practiced inside these environments, making use of low energy consumption. Therefore, in this work two air conditioning systems will be addressed: indirect evaporative cooling and direct evaporative cooling, in order to determine their cooling capacities, performances and then compare them with the Wet-Bulb Globe Temperature (WBGT). From this comparison, it was possible to conclude that both systems have very similar performances, being 76.06% and 80% for indirect evaporative cooling and direct evaporative cooling respectively, energy consumption with a relevant difference of 3.43kW and presenting conditions of 𝑊𝐵𝐺𝑇𝐼𝐸𝐶 at 21.06°C insufflation for indirect evaporative cooling and an 𝑊𝐵𝐺𝑇𝐷𝐸𝐶 of 22.81°C for direct evaporative cooling, both of which meet the parameters of 𝑊𝐵𝐺𝑇𝑀𝐴𝑋 of 28.5 °C.