Numerical analysis of the air flow in internal combustion engine intake ducts using Herschel-Quincke tubes

Mazzaro, Rafael Siqueira; Hanriot, Sérgio de Morais; Amorim, Rogério Jorge; Júnior, Pedro Américo Almeida Magalhães

doi:10.1016/j.apacoust.2020.107310

Cited by 12 publications

(8 citation statements)

References 28 publications

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“…In a single-cylinder diesel engine with an exhaust tube diameter of 35 mm as tested before in another research [9], the inlet tube diameter is considered to be D1 = 0.035 m; so, for a circular tube A 1 = 96.21EÀ03 m 2 . Then, using R 1 and R 2 values in Table 7, A2 = 8.44EÀ03 m 2 or for a rectangular tube a = 91.87 mm, and A 3 = 36.20EÀ03 m 2 or for an elliptical tube b = 50 and c = 230.45 mm (see Fig.…”

Section: Results Of Computational Aeroacoustics Analysis (Caa) For Th...mentioning

confidence: 99%

“…Also, they reported that the IL peak could be achieved when the path difference between the sound radiation from the dipole through the HQ tube segment was a multiple of the wavelength. Recently, the application of the HQ concept on the reduction of the pressure pulsation in the intake ducts of internal combustion (IC) engine had been studied [9]. A numerical study was carried out based on the Characteristics Method, which considers the one-dimensional flow inside the ducts.…”

Section: Introductionmentioning

confidence: 99%

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Analytical and numerical modeling, sensitivity analysis, and multi-objective optimization of the acoustic performance of the herschel-quincke tube

et al. 2021

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Section: Results Of Computational Aeroacoustics Analysis (Caa) For Th...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical and numerical modeling, sensitivity analysis, and multi-objective optimization of the acoustic performance of the herschel-quincke tube

et al. 2021

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“…Over the recent few years, while seeking means of raising the engine efficiency, plus achieving the standard emission regulations for pollutant gases, the supply of supercharged engines has escalated, as they are specially fitted with aftercooler and managed with electronic fuel injection. In reality, new technologies were incorporated, like the sizing of intake manifolds with more efficient utilization of the pressure waves (resonance) (MAZZARO et al, 2020), besides others. Such progress gave rise to the production of different performance curves, unique from those resulting from the use of classic or old engines, which employed the mechanical injection management system and natural air aspiration.…”

Section: Bertinatto Et Almentioning

confidence: 99%

Typical performance behavior of a Diesel cycle agricultural tractor engine with electronic injection management and turbocharger

et al. 2022

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Over the past few years, changes have been observed in the behavior of typical performance curves, after higher technology has been incorporated into the agricultural tractor engines, either to satisfy the ceiling of the new pollutant gas emission limits or to achieve better efficiency. The aim of this study was to assess the typical performance behavior of an agricultural tractor engine, possessing electronic injection management, turbocharger, aftercooler and EGR (Exhaust Gas Recirculation) treatment system. An analysis was done of the information the manufacturers provided, in terms of nominal power, maximum power and maximum power with Booster, maximum torque and maximum torque with Booster. From the results, the percentage difference between the nominal power and maximum power were found to hover anywhere from 1.49 to 11.97%, for the same manufacturer, 0% in another manufacturer and 9% in a third manufacturer, for all the models. Similar results were noted for the data reported on the maximum torque and maximum torque with Booster, giving 0.62% as the minimum value, 7.44% as the average value and 12.65% as the maximum value for the entire series.

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“…Ahmadian et al [ 17 ] developed a genetic algorithm to optimize the parameters of a HQ tube. Mazzaro et al [ 18 ] numerically investigated air flow movement inside the HQ tubes. The disadvantage of the HQ tube is clear.…”

Section: Introductionmentioning

confidence: 99%

An Infinity Tube with an Expansion Chamber for Noise Control in the Ductwork System

Xue

Mak

Cai

et al. 2022

Sensors

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This paper proposes a muffler with simple geometry to effectively reduce low-frequency noise in ductwork systems. A muffler named infinity tube with an expansion chamber (ITEC) is developed from the infinity tube (IT). Theoretical and numerical analyses of wave propagation in the ITEC have been conducted in this paper. The transfer matrix method is adopted to predict transmission loss theoretically. The theoretical results are validated by the finite element method simulation. The comparison of the transmission loss between the IT and ITEC illustrates that the ITEC has an advantage in low-frequency noise reduction. The transmission loss results of the ITEC are compared with the Helmholtz resonator system to assess the potential for industrial application. Finally, the geometric parameters of the proposed ITEC on its noise attenuation performance have been analyzed. The proposed ITEC can effectively reduce low-frequency noise, and it is suitable for ductwork systems in constrained spaces.

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Numerical analysis of the air flow in internal combustion engine intake ducts using Herschel-Quincke tubes

Cited by 12 publications

References 28 publications

Analytical and numerical modeling, sensitivity analysis, and multi-objective optimization of the acoustic performance of the herschel-quincke tube

Analytical and numerical modeling, sensitivity analysis, and multi-objective optimization of the acoustic performance of the herschel-quincke tube

Typical performance behavior of a Diesel cycle agricultural tractor engine with electronic injection management and turbocharger

An Infinity Tube with an Expansion Chamber for Noise Control in the Ductwork System

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