Effect of boosting system architecture and thermomechanical limits on diesel engine performance: Part-I—Steady-state operation

Galindo, José; Climent, Héctor; Varnier, Olivier; Patil, Chaitanya Yashvant

doi:10.1177/1468087417731654

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…The increase of ambient air temperatures nowadays and engine air charge density over manifold using compression devices, turbocharger and supercharger has led to a rise in intake manifold air pressure and temperature [28] as well as the effect on engine performance and fuel consumption, Such air property is not desirable for a complete engine combustion [29]. Thus, CAC becomes one of the best solutions for temperature reduction through intercooler units.…”

Section: Influence Of Charge Air Cooling-(cac) On Engine Performancementioning

confidence: 99%

Development of evaporative intercooler heat exchanger for vehicle charge air enhancement using CFD simulation

Sharif

Hairuddin

As'ary

et al. 2019

JMES

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Nowadays, the concern of vehicle manufacturers towards improving engine performance, reducing fuel consumption and exhaust emissions that can cause the pollution of the atmosphere, concerns of strict emission pollution control regulations. Intercooler heat exchanger devices are used for engine charge air temperature improving for engine performance and emissions reduction. This paper introduces a new add-on technology of intercooler heat exchanger- (IHE) developed for utilizing in intake charge air density enhancement in engine combustion for better performance. Presenting a challenge in contributing a framework process for geometry designing development procedure for accurate and reliable scale design size of an air-vapour gas shell-and-tube IHE type, used refrigerant coolant medium. The process presents effective IHE in design time consumption, accurate in scale with higher performance and reliability operation in all environment weather due to reversibility system. A selected design geometry of 60 bunches of tubes with 7.53 mm inner diameter and 150 mm long placed. Effectiveness and design parameter geometry calculation are conditions of the IHE dependent relations of the shell size to tube length in condition of engine space availability control. Pressure drop and cooling capacity of IHE configuration design are proportional to the availability of design space or pressure drop control by the engine. Numerical and simulation results expressed a significant ability of IHE of 2–13 kW cooling load and process applicability for qualified design geometry configuration for selected IHE type. The developments present significant geometry flexibility design with the ability of cooling load or heating effect if reversible system, which offered multipurpose use in widely all vehicle types.

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Section: Influence Of Charge Air Cooling-(cac) On Engine Performancementioning

confidence: 99%

Development of evaporative intercooler heat exchanger for vehicle charge air enhancement using CFD simulation

Sharif

Hairuddin

As'ary

et al. 2019

JMES

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“…Diesel engine with its significant efficiency over gasoline engine can meet the low carbon emission requirement [1]. Efficiency optimization and emission reduction are the main focus of development in internal combustion engines [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of Air Injection Technique on the Emission Characteristics of a CI Engine During Transient Operation

Saad,

Rummana

2024

Preprint

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The performance of turbocharged diesel engine deteriorates during transient operating conditions. Air injection is an effective technique in improving the transient response of the engine. However, the technique is not evaluated for exhaust emissions. To meet the stringent emission regulations, it is important to improve the emission performance of the diesel engine. Present study deals with the effect of air injection technique on exhaust emissions (CO, HC and NOx) under speed and load transients. Optimization of injection pressure based on orifice diameter is performed to ensure that the application of the technology comply with Euro VI standard. The results of the simulation were evaluated for Euro VI standard and 3 bar air injection at 10 mm orifice diameter was found to be the optimum injection pressure for speed transients which brings slight reduction in CO and HC emissions and significant reduction in NOxemissions. For load transients, Emissions werefound to be below Euro VI standard for all the injection pressures and orifice diameters.Quantification of emissions were done and 1.2 bar injection pressure at 10 mm orifice diameter was found to reduce all the three emissions as compared to no air injection.

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Numerical investigation of lamella heat exchanger for engine intake charge air cooling utilizing refrigerant as coolant medium

Ikhtiar

Hairuddin²,

Asarry³

et al. 2023

Alexandria Engineering Journal

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Effect of boosting system architecture and thermomechanical limits on diesel engine performance: Part-I—Steady-state operation

Cited by 6 publications

References 16 publications

Development of evaporative intercooler heat exchanger for vehicle charge air enhancement using CFD simulation

Development of evaporative intercooler heat exchanger for vehicle charge air enhancement using CFD simulation

Effect of Air Injection Technique on the Emission Characteristics of a CI Engine During Transient Operation

Numerical investigation of lamella heat exchanger for engine intake charge air cooling utilizing refrigerant as coolant medium

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