Research on ventilation cooling devices with low-energy consumption characteristics

Abstract

Due to the problem of air conditioning shortage in summer, homeless people and poor residents are threatened by high temperature, a low-energy ventilation cooling device (LEVCD) is designed to prevent heatstroke and improve the living environment. The abandoned plastic bottles, as a core ventilation cooling accessory, were used to construct the LEVCD. The flow and ventilation cooling characteristics of the LEVCD were investigated. The representative image was fabricated to discuss ventilation cooling performance by examining temperature, pressure, and velocity nephograms. The fluid dynamics characteristics, such as the jet action and throttling effect, were analyzed. The temperature drop efficiency index is presented to examine the ventilation cooling characteristics of the LEVCD. The results show that the abandoned plastic bottles were recycled, which can effectively reduce environmental pollution. The ventilation cooling function is mainly induced by jet action. The ventilation cooling effect increases with the increase in inlet airflow velocity. The temperature drop efficiency increase with the increase in ambient temperature.