Experimental investigation on a Common Rail Diesel engine partially fuelled by syngas

Rinaldini, Carlo Alberto; Allesina, Giulio; Pedrazzi, Simone; Mattarelli, Enrico; Savioli, Tommaso; Morselli, Nicolò; Puglia, Marco; Tartarini, Paolo

doi:10.1016/j.enconman.2017.02.034

Cited by 49 publications

(30 citation statements)

References 20 publications

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“…8 One promising approach, especially for applications in industrial and agricultural stations, is the partial replacement of diesel with synthetic gas, or syngas. 9 The gases generated during the burning of solid fuels are called syngas, which is generally a mixture of carbon monoxide (CO), hydrogen (H 2 ), carbon dioxide (CO 2 ), nitrogen (N 2 ), and methane (CH 4 ). The ratio of these compounds depends on the burning process and solid fuel structure and type.…”

Section: Introductionmentioning

confidence: 99%

Artificial Neural Network Modeling and Numerical Simulation of Syngas Fuel and Injection Timing Effects on the Performance and Emissions of a Heavy-Duty Compression Ignition Engine

et al. 2021

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The use of syngas as an alternative fuel in compression ignition engines is a potential way to curb the emission of pollutants and optimize the performance of these engines. The present research studied the effect of changing fuel injection timing and adding syngas on the output of a heavy-duty diesel engine. The optimal mode of the turbulence model, fuel spray model, combustion model, and pollutant emission model was used to solve computational fluid dynamics. Changing fuel injection timing from 70 to 10° before top dead center (BTDC) and diesel variants, including conventional diesel, diesel + 20% syngas, and diesel + 40% syngas, is the strategy studied here. It was found that the use of syngas could reduce emissions significantly. The in-cylinder mean effective pressure was the highest for diesel + 20% syngas. On the other hand, increasing the rate of syngas and retarding injection timing reduced the ignition period and in-cylinder temperature. The lowest rate of CO emission was obtained from diesel + 40% syngas at a fuel injection timing of 70° BTDC, whereas the lowest particulate matter emission was related to diesel + 40% syngas at 40° BTDC injection timing. The lowest rate of CO2 emission was related to diesel + 40% syngas at a fuel injection timing of 10° BTDC, while the same timing for conventional diesel exhibited the lowest NO X emission rate. Finally, the performance parameters of the engine including indicated power, indicated fuel consumption, and indicated thermal efficiency were decreased with the increase in syngas fraction, so that their highest values were obtained from the conventional diesel at the injection timing of 40° BTDC. In addition, an artificial neural network (ANN) model based on a standard back-propagation learning algorithm was developed for modeling the performance and emissions of the engine. The results for the optimum ANN model showed that the optimal ANN has two hidden layers with 20–25 neurons and the transfer function of logsig–logsig for hidden layers 1 and 2, respectively, and can predict different parameters of the engine for different modes. The correlation coefficients (R-value) of optimal topology for training, validation, and testing are 0.99992, 0.96612, and 0.93424, respectively. The results for the optimum ANN model showed that the constructed model sufficiently predicts the performance and emissions of the CI diesel engine.

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Section: Introductionmentioning

confidence: 99%

Artificial Neural Network Modeling and Numerical Simulation of Syngas Fuel and Injection Timing Effects on the Performance and Emissions of a Heavy-Duty Compression Ignition Engine

et al. 2021

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“…In particular biomass gasification can be a very interesting technology for a sustainable development [5,6]. Through this thermochemical process, the biomass is converted into a gaseous flammable gas, called syngas [4] that can fuel internal combustion engines [7,8]. Vine prunings [9], poplar wood chips [10,11], woody residues deriving from river banks maintenance [12], corn cobs [13] and corn stover [14,15] are just a few examples of agro-forestry by product that can efficiently converted through gasification process.…”

Section: Introductionmentioning

confidence: 99%

Efficiency and Economical Assessment of a Solar Powered Dryer Combined with a Biomass Gasification System

Puglia¹,

Rizzo²,

Morselli³

et al. 2019

IJHT

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This work follows the study presented in Matera at the 4th AIGE/IIETA International Conference titled: "Analysis of energy saving potential of combined thermal solar power and micro scale gasification systems". This previous work was focused on the advantages gained through the integration between thermal solar power and a small scale gasification system and how to maximize them. The results showed that the best way to combine the two systems is to use to heat generated with the thermal solar power to dry the fuel rather than heat up the gasification air. In this second work the best scenario will be analyzed considering the annual irradiance in the Province of Modena in northern Italy. The systems considered in this study were the APL PP30, a biomass gasifier genset system able to produce 22 kWel at 50 Hz, and the Chromasun Micro-Concentrator (MCT), a high performance solar collector able of 2.2 kWt output peak at DNI of 1000 W m-2. Results showed that four thermal solar units are sufficient to dry the biomass consumed in a year by the gasifier, increasing substantially its efficiency. The economic feasibility of this scenario was investigated considering a possible substitution of the methane as the heat source of the biomass dryer. Considering a discount rate of 5 % and an inflation rate of 2.5 % it is possible to have a positive NPV after 22 years from the purchase of the 4 thermal solar units. Furthermore, it is possible to save 2286 kg of CO2 using solar energy rather than methane every year.

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“…Produced gas obtained can be used as fuel in internal combustion engines, turbines, heat generators, high temperature fuel cells etc. [5,[16][17].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Energy Saving Potential of Combined Thermal Solar Power and Micro Scale Gasification Systems

Rizzo¹,

Puglia²,

Morselli³

et al. 2019

IJES

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This work investigates the advantages that can be gained through the proper integration between a thermal solar module and a small-scale gasification system. The gasification power plant here studied consists in a PP20 Power Pallet, a complete power plant capable of 20 kW of electrical power. Fresnel lens concentrated thermal solar panel system is used as heat source for the gasification power plant. Different scenarios are drafted looking at the different way the heat can be provided. One scenario investigates the use of solar heat to dry the gasifier fuel (wood chips). It is proven that dried fuel allows a reduced tar production in gasification systems as well as an increase in the gasification efficiency. A second scenario investigates the possibility of pre-heating the air used as gasification agent. Air pre-heating produces a higher temperature combustion zone, with higher chance to perform a better thermal cracking of the tarry compounds yielded by the pyrolysis zone. Results show that the solar unit is capable of air preheating up to 149 °C, nevertheless the efficiency increase that derives from this solution is little when compared with the use of heat for wood chips drying.

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Experimental investigation on a Common Rail Diesel engine partially fuelled by syngas

Cited by 49 publications

References 20 publications

Artificial Neural Network Modeling and Numerical Simulation of Syngas Fuel and Injection Timing Effects on the Performance and Emissions of a Heavy-Duty Compression Ignition Engine

Artificial Neural Network Modeling and Numerical Simulation of Syngas Fuel and Injection Timing Effects on the Performance and Emissions of a Heavy-Duty Compression Ignition Engine

Efficiency and Economical Assessment of a Solar Powered Dryer Combined with a Biomass Gasification System

Analysis of Energy Saving Potential of Combined Thermal Solar Power and Micro Scale Gasification Systems

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