Study of the Incidence of CO and CO 2 Gas Emission Levels and Temperature, of the Automotive Air Conditioning System Inside an Interprovincial Bus at Different Environmental and Operating Conditions

Abstract

Abstract The present curricular integration work proposes to analyze the levels of CO and CO 2 gas emissions in the passenger compartment of an interprovincial bus, considering environmental and functional conditions, to obtain values that are analyzed, allowing to know the comfort conditions of the passenger, and considering an ideal temperature of 22 ∘ C. The study was carried out on the selected route during the bus route, both in the central and peripheral urban sectors, where the influx of users is notable throughout the day. The field measurements were carried out (August 5-10), inside the passenger compartment of an interprovincial bus, considering operating variables of the automotive air conditioning system, such as condition, OFF, air recirculation, and air renewal. Data were collected in the passenger compartment's front, middle, and rear sections. An IAQ TESTO 440 gas analyzer was used through the CO 2 and the CO probe, located at a height of 1.1 m from the floor, which was considered as the average respiratory level of the passenger, generating the data in lapses of 10 min. Once the analysis has been carried out, the data is tabulated and the concentration levels of emissions produced by the users' exhalation are determined. Finally, by tabulating the data, it was possible to know the concentration percentages of the gas emissions produced by the users, in the different locations of the passenger compartment. It is recommended that for future research, a study be carried out with data collected from a full day of travel.

Keywords

• air conditioning, optimization, gas emissions, air quality, passenger cabin, comfort, gas analyzer, interprovincial transport.