Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance

The paper presents the problem of the effect of air filter pressure drop on the operating parameters of a modern internal combustion engine with compression ignition. A literature analysis of the results of investigations of the effect of air filter pressure drop on the filling, power and fuel consu...

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Main Authors: Tadeusz Dziubak, Mirosław Karczewski
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/9/3285
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author Tadeusz Dziubak
Mirosław Karczewski
author_facet Tadeusz Dziubak
Mirosław Karczewski
author_sort Tadeusz Dziubak
collection DOAJ
description The paper presents the problem of the effect of air filter pressure drop on the operating parameters of a modern internal combustion engine with compression ignition. A literature analysis of the results of investigations of the effect of air filter pressure drop on the filling, power and fuel consumption of carburetor and diesel engines with classical injection system was carried out. It was shown that each increase in the air filter pressure drop Δ<i>p<sub>f</sub></i> by 1 kPa results in an average decrease in engine power by SI 1–1.5% and an increase in specific fuel consumption by about 0.7. For compression ignition engines, the values are 0.4–0.6% decrease in power and 0.3–0.5% increase in specific fuel consumption. The values of the permissible resistance of the air filter flow Δ<i>p<sub>fdop</sub></i> determined from the condition of 3% decrease in engine power are given, which are at the level of 2.5–4.0 kPa—passenger car engines, 4–7 kPa—truck engines and 9–12 kPa—special purpose vehicles. Possibilities of decreasing the pressure drop of the inlet system, which result in the increase of the engine filling and power, were analyzed. The program and conditions of dynamometer engine tests were worked out in respect to the influence of the air filter pressure drop on the operation parameters of the six-cylinder engine of the swept volume <i>V<sub>ss</sub></i> = 15.8 dm<sup>3</sup> and power rating of 226 kW. Three technical states of the air filter were modeled by increasing the pressure drop of the filter element. For each technical state of the air filter, measurements and calculations of engine operating parameters, including power, hourly and specific fuel consumption, boost pressure and temperature, were carried out in the speed range <i>n</i> = 1000–2100 rpm. It was shown that the increase in air filter pressure drop causes a decrease in power (9.31%), hourly fuel consumption (7.87%), exhaust temperature (5.1%) and boost pressure (3.11%). At the same time, there is an increase in specific fuel consumption (2.52%) and the smoke of exhaust gases, which does not exceed the permissible values resulting from the technical conditions for admission of vehicles to traffic.
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spelling doaj.art-36e5e2c2565242a3b8542a2c5b1c441f2023-11-23T08:09:08ZengMDPI AGEnergies1996-10732022-04-01159328510.3390/en15093285Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine PerformanceTadeusz Dziubak0Mirosław Karczewski1Faculty of Mechanical Engineering, Military University of Technology, 2 Gen, Sylwestra Kaliskiego Street, 00-908 Warsaw, PolandFaculty of Mechanical Engineering, Military University of Technology, 2 Gen, Sylwestra Kaliskiego Street, 00-908 Warsaw, PolandThe paper presents the problem of the effect of air filter pressure drop on the operating parameters of a modern internal combustion engine with compression ignition. A literature analysis of the results of investigations of the effect of air filter pressure drop on the filling, power and fuel consumption of carburetor and diesel engines with classical injection system was carried out. It was shown that each increase in the air filter pressure drop Δ<i>p<sub>f</sub></i> by 1 kPa results in an average decrease in engine power by SI 1–1.5% and an increase in specific fuel consumption by about 0.7. For compression ignition engines, the values are 0.4–0.6% decrease in power and 0.3–0.5% increase in specific fuel consumption. The values of the permissible resistance of the air filter flow Δ<i>p<sub>fdop</sub></i> determined from the condition of 3% decrease in engine power are given, which are at the level of 2.5–4.0 kPa—passenger car engines, 4–7 kPa—truck engines and 9–12 kPa—special purpose vehicles. Possibilities of decreasing the pressure drop of the inlet system, which result in the increase of the engine filling and power, were analyzed. The program and conditions of dynamometer engine tests were worked out in respect to the influence of the air filter pressure drop on the operation parameters of the six-cylinder engine of the swept volume <i>V<sub>ss</sub></i> = 15.8 dm<sup>3</sup> and power rating of 226 kW. Three technical states of the air filter were modeled by increasing the pressure drop of the filter element. For each technical state of the air filter, measurements and calculations of engine operating parameters, including power, hourly and specific fuel consumption, boost pressure and temperature, were carried out in the speed range <i>n</i> = 1000–2100 rpm. It was shown that the increase in air filter pressure drop causes a decrease in power (9.31%), hourly fuel consumption (7.87%), exhaust temperature (5.1%) and boost pressure (3.11%). At the same time, there is an increase in specific fuel consumption (2.52%) and the smoke of exhaust gases, which does not exceed the permissible values resulting from the technical conditions for admission of vehicles to traffic.https://www.mdpi.com/1996-1073/15/9/3285internal combustion enginesair filter pressure dropengine powerhourly and specific fuel consumptionsmoke opacity
spellingShingle Tadeusz Dziubak
Mirosław Karczewski
Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance
Energies
internal combustion engines
air filter pressure drop
engine power
hourly and specific fuel consumption
smoke opacity
title Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance
title_full Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance
title_fullStr Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance
title_full_unstemmed Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance
title_short Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance
title_sort experimental study of the effect of air filter pressure drop on internal combustion engine performance
topic internal combustion engines
air filter pressure drop
engine power
hourly and specific fuel consumption
smoke opacity
url https://www.mdpi.com/1996-1073/15/9/3285
work_keys_str_mv AT tadeuszdziubak experimentalstudyoftheeffectofairfilterpressuredroponinternalcombustionengineperformance
AT mirosławkarczewski experimentalstudyoftheeffectofairfilterpressuredroponinternalcombustionengineperformance