Conversion of a heavy duty truck diesel engine with an innovative power turbine connected to the crankshaft through a continuously variable transmission to operate compression ignition dual fuel diesel-LPG

Boretti, Alberto

doi:10.1016/j.fuproc.2013.03.018

Cited by 17 publications

(5 citation statements)

References 17 publications

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“…In his study, he investigated the effect of LPG combustion on engine performance and emission values experimentally and numerically. And the results obtained have determined that LPG combustion causes a decrease in CO2 emissions, soot and NOX emissions, while it does not cause a change in engine performance (Boretti, 2013). Elnajjar et al observed the combustion of LPG fuel and diesel fuel containing different ratios of butane-propane in terms of performance values under 26 different loads at variable compression ratios, variable injection angles and variable speeds.…”

Section: Avrupa Bilim Ve Teknoloji Dergisi E-issn: 2148-2683 284mentioning

confidence: 99%

Experimental Investigation of Acoustic Forcing on the Combustion Effect of Propane - Methane Mixtures

ER,

TAŞTAN

2023

EJOSAT

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Today, the ever-increasing energy resource needs are of great importance for all countries in the global sense. Countries have recently been developing important policies to meet their energy needs and to use existing energy resources efficiently. In addition, in order to minimize the emissions that harm the nature as a result of the burning of energy sources, they have turned to alternative energy sources that are less harmful to the environment. In order to be an alternative energy source, in this study, the effect of enriching propane gas with methane gas on combustion in a Tubitak supported combustor was experimentally investigated. The enrichment of methane gas was determined at the rates of 10%, 20% and 30%, and the effects of acoustic stress on combustion, emission values and the effects on the flame were investigated. The thermal power was 7 kW and the equivalence ratio (Փ) was 1.2, and the experiment was carried out with a constant eddy value (1.0). When the experiment was carried out without acoustic stress, it was determined that the temperature, flame brightness and light intensity increased as the methane ratio increased, the dynamic pressure value almost did not change, the NOx value was negligibly small, and the CO value decreased depending on the oxygen amount as the methane ratio increased. In the experiments carried out under 90 Hz, 185 Hz and 330 Hz acoustic stress, as the forcing value increases, the temperature and flame brightness increase; It was observed that the NOx value was negligibly small, and the CO value decreased compared to the experiment performed without acoustic stress.

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Section: Avrupa Bilim Ve Teknoloji Dergisi E-issn: 2148-2683 284mentioning

confidence: 99%

Experimental Investigation of Acoustic Forcing on the Combustion Effect of Propane - Methane Mixtures

ER,

TAŞTAN

2023

EJOSAT

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“…To calibrate this model, a high-fidelity GT-Power model is constructed with a configuration as Figure 1, and its combustion model is predictive combustion model which is calibrated by real in-cylinder pressure data and injection profile. It has been demonstrated in [23] that such a model can capture the combustion process for transient conditions.…”

Section: Calibrationmentioning

confidence: 99%

In-Cylinder Oxygen Concentration Estimation Based on Virtual Measurement and Data Fusion Algorithm for Turbocharged Diesel Engines

et al. 2021

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In-cylinder oxygen concentration (ICOC) is critical for advanced combustion control of internal combustion engines, and is hard to be accessed in commercial measurements. In existing research, ICOC is predicted by conventional dynamical model based on mass/energy conservation, which suffers from uncertainties such as inaccuracy of volumetric efficiency or the error of orifice geometry. In this paper, we enhance the ICOC estimation by implementing two vital strategies. Firstly, we introduce a method called virtual measurement to resist the conventional model uncertainties, in this method we modeling the ICOC as a function of ignition delay which can be obtained by measuring the in-cylinder pressure. Secondly, we apply Kalman filter to fuse the ICOC results from the conventional dynamical model and the virtual measurement. The data fusion algorithm turns the estimation to a predictor-corrector fashion, which further improves the overall accuracy and robustness. The proposed approach is validated through a calibrated GT-Power engine model. The results show that the estimation error can be achieved form at worst 0.03 to at best 0.01 on steady state.

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“…On the other hand, turbocompounding represents the most mature direct WHR system [29], in which an additional turbine is used to provide additional mechanical energy. The latter can be converted into electrical form to be stored in batteries or used in mild hybrid engines and serve the vehicle auxiliaries.…”

Section: Introductionmentioning

confidence: 99%

Turbocompound energy recovery option on a turbocharged diesel engine

Battista,

Bartolomeo,

Prospero

et al. 2023

J. Phys.: Conf. Ser.

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The transportation sector is living a transition era in which hybrid and electrified vehicles are replacing conventional vehicles, based on internal combustion engines. This is pushed by the recognized need for reducing fuel consumption and tailpipe emissions, considering primary pollutants and carbon dioxide as a greenhouse gas. In the transition path, hybridization and partial electrification of the powertrain play a crucial role. In this regard, the need for on-board electrical energy storage and utilization is increasing significantly and the possibility to recover wasted energy and convert it into electrical form is mandatory. This is especially true for commercial and heavy-duty vehicles, where full electrification is more difficult to be implemented. Waste Heat Recovery (WHR) has therefore become so important for vehicles, not only to directly reduce fuel consumption and related emissions but also to improve the feasibility of a generation of vehicles with a higher degree of hybridization that considers, for example, the electrification of auxiliaries following the so-called auxiliaries-on-demand management. Wasted heat refers mainly to exhaust heat from gases, where about one third of the fuel energy is disposed of. Among the various systems for WHR, engine turbo-compounding is approaching a mature technology. This technological option makes use of an additional turbine on the exhaust line of the engine, downstream of the turbocharging one, which converts the residual gas enthalpy into mechanical form. In this paper, the F1C Iveco 3.0 L turbocharged diesel engine is considered for verifying the performances of a turbo-compounding system. The engine was mounted on a dynamic engine test bench. In particular, the interactions with the original engine produced on the exhaust line were studied. Backpressure effects on the engine introduced by turbo-compounding were evaluated reversed in terms of extra fuel consumption. Moreover, the new equilibrium of the turbocharger was assessed and the related modifications to the engine were measured considering that the turbocharger has a control strategy based on the so-called Variable Geometry Turbine (VGT), via the modification of the Inlet Guide Vanes (IGV). The presence of a secondary turbine for WHR opens to a wider possibility of actuating the IGV and, so, the possibility to optimize the recovery considering the integrated system and all its degrees of freedom.

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Conversion of a heavy duty truck diesel engine with an innovative power turbine connected to the crankshaft through a continuously variable transmission to operate compression ignition dual fuel diesel-LPG

Cited by 17 publications

References 17 publications

Experimental Investigation of Acoustic Forcing on the Combustion Effect of Propane - Methane Mixtures

Experimental Investigation of Acoustic Forcing on the Combustion Effect of Propane - Methane Mixtures

In-Cylinder Oxygen Concentration Estimation Based on Virtual Measurement and Data Fusion Algorithm for Turbocharged Diesel Engines

Turbocompound energy recovery option on a turbocharged diesel engine

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