Análisis del comportamiento de las concentraciones de CO y CO2 al interior del habitáculo de vehículos todo terreno mediante ensayos dinámicos en ruta periférica

Abstract

The objective of this study was to determine the CO concentrations and CO2 in five SUV vehicles and to establish the number of harmful particles inside the passenger compartment during dynamic tests in the Rumiñahui Canton. The determination of the number of concentrations inside the passenger compartment was carried out through regulations such as Indoor Air Quality (IAQ), ASRHAE 62-19 standard for interiors of cabins, and the Russian interstate standard GOST 33554–2015, which stipulates the environmental comfort temperature between 18ºC to 25ºC. The dynamic test (road tests) was considered, in addition, the Testo 440 instrument used includes CO and CO2 probes that allow obtaining values of concentrations, temperature, relative humidity, and pressure depending on the duration of the test. The measurements and the gathered concentrations based on the three modes of operation of the automotive air conditioner during the two types of vehicular flow (high and low), in the morning and noon. The results show that the increase in carbon dioxide is a function of the temperature inside the passenger compartment when the vehicle is hermetic, while carbon monoxide will depend to a large extent on the initial concentration in the vehicle. It is concluded, that there is a decrease in carbon dioxide during the air renewal mode, decreasing the concentrations regardless of the vehicular flow and type of day. On the contrary, during the same mode of operation, the carbon monoxide concentrations rise that it is found depending on the number of vehicles around it. Initial ambient concentrations will influence the rise for all CO modes of operation.