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Engine Fuel Economy Optimization for different Hybrid Architectures using 1-D Simulation technique

Tafe Motors and Tractors Limited-Ajay Nain, Devendra Nene
  • Technical Paper
  • 2019-28-2496
To be published on 2019-11-21 by SAE International in United States
In order to improve fuel economy of the 3.3 litre tractor model, various kinds of engine hybridization is studied. This paper presents a methodology to predict engine fuel consumption using 1-D software by coupling Ricardo Wave and Ricardo Ignite. Engine fuel consumption and emission maps are predicted using Ricardo WAVE. These maps are used as an input to IGNITE for predicting cumulative fuel consumption. There is good agreement within 10% deviation between simulated cumulative fuel consumption and experimental cumulative fuel consumption. Same calibrated model is used further for studying series hybridization, parallel P1 type and Parallel P2 type of hybridization. A design of experiment (DOE) model is run for different electric motor sizes, battery capacity and battery state of charge condition, to understand their effects on overall engine fuel consumption and cycle soot emission. Model predicts overall significant reduction in cumulative fuel consumption and soot emission. Lower soot emission will leads to smaller exhaust after-treatment size. There is trade-off between higher cost due to hybridization and lower cost due to lower after-treatment size. A cost…
 

Development of Dedicated Lubricant for Hydrogen Fueled Spark Ignition Engine

Indian Institute of Technology - Delhi-K A Subramanian
Indian Oil Corp Ltd-Verinder Kumar Bathla, Reji Mathai
  • Technical Paper
  • 2019-28-2511
To be published on 2019-11-21 by SAE International in United States
Hydrogen has low ignition energy ensures easy ignition of the ultra-lean mixture of H2+air also. The flame speed of hydrogen is about five times higher than methane and gasoline which allows hydrogen fuelled IC engines to have relatively reduced cyclic variations than that of with methane and gasoline. High flame speed also helps to make the combustion closer to constant volume which enhances the thermal efficiency of hydrogen fuelled IC engine. High octane number of hydrogen makes it suitable for its application in Spark ignition (SI) engines. Since the hydrogen combustion in spark ignition engine generates water which can interfere with the lubricant performance, different lubricant is to be developed for this purpose. In this background, the present work is aimed at the development of dedicated lubricant for hydrogen fuelled SI engine. This paper presents the various parameters required for evaluating different lubricants for hydrogen fuelled genset. Existing CNG genset has been converted into hydrogen genset with modification in intake manifold assembly, engine hardware system, ECU modification with adequate modification in exhaust system. State of…
 

Development of Diesel Particulate NOx Reduction DPNR System for Simultaneous Reduction of PM and NOx in Diesel Engines

A R A I-E. Parthiban, Aatmesh Jain, Kamalkishore Chhaganlal Vora
  • Technical Paper
  • 2019-28-2554
To be published on 2019-11-21 by SAE International in United States
The Diesel Particulate NOx Reduction (DPNR) system is used for simultaneous reduction of PM and NOx in diesel engine. DPF is used to trap particulate matter in diesel engines. NOx absorber technology removes NOx in a lean (i.e. oxygen rich) exhaust environment for both diesel and gasoline lean-burn GDI engines. The NOx storage and reduction catalyst is uniformly coated on the wall surface and in the fine pores of a highly porous filter substrate. Combination of these two components in the DPNR results in a compact size of the system. The base diesel engine model validated with pressure crank angle diagram and performance parameters such as Indicated mean effective pressure. This base engine’s exhaust emission is given as an input to the DPNR system. The surface reaction is connected to the DPF through chemcon template. The surface reaction is NOx storage and reduction chemical kinetics like Lean NOx Trap. The modelling of DPNR and Base engine is done using GT-SUITE. This paper describes about the 1D simulation of DPNR system with base diesel engine model…
 

Combustion Optimization and In-cylinder NOx and PM Reduction by using EGR and Split Injection Technique

A R A I-Madhan Kumar, Aatmesh Jain, Kamalkishore Chhaganlal Vora
  • Technical Paper
  • 2019-28-2560
To be published on 2019-11-21 by SAE International in United States
Nowadays, the major most challenge in the diesel engine is the oxides of nitrogen (NOx) and particulate matter (PM) trade-off, with minimal reduction in Power and BSFC. Modern day engines also rely on expensive after-treatment devices, which may decrease the performance and increase the BSFC. In this paper, combustion optimization and in-cylinder emission control by introducing the Split injection technique along with EGR is carried out by 1-D (GT-POWER) simulation. Experiments were conducted on a 3.5 kW Single-cylinder naturally aspirated CRDI engine at the different load conditions. The Simulation model incorporates detailed pressure (Burn rate) analysis for different cases and various aspects of ignition delay, premixed and mixing controlled combustion rate, the injection rate affecting oxides of nitrogen and particulate matter. The predictive combustion model (DI-PULSE) has been developed for the calibration of an engine under multiple injections and the detailed injection rates with EGR rates. Split injection with higher fuel quantity injected in the 1st pulse, helped to significantly reduce PM emissions. This reduction is due to the restraint in the premixed phase of…
 

EMISSION REDUCTION OF A DIESEL ENGINE FUELED WITH BLENDS OF BIOFUEL UNDER THE INFLUENCE OF 1,4-DIOXANE AND RICE HUSK NANO PARTICLE.

Delphi TVS, Chennai.-Santiago josan
Madras Institute of Technology, Chennai-Mebin Samuel P, Devaradjane G PhD
  • Technical Paper
  • 2019-28-2387
To be published on 2019-11-21 by SAE International in United States
Research Objectives. In this modern era increase in Pollution became a huge impact in the lives of all living creatures, in this automobile tends to be one of the major contributors in terms of air pollution thanks to their exhaust emissions. The objective of the present study is to reduce the amount of harmful pollutants emitted from the automobiles by the utilization of a biofuel further influenced by two additives (liquid and a Nano additive). Methodology In this study, first the bio oil is extracted, Then the biofuel is mixed with diesel fuel at different proportions of 20%, 40% by volume. Experiments are carried out in a direct injection compression ignition engine, which is a stationary test engine manufactured by Kirloskar, connected to a computer setup. The emission values in the exhaust gases are obtained using AVL exhaust gas analyzer. Then 0.1% of rice husk nano additive is added with the fuel blend followed by 3%, 6% of 1,4-Dioxane blended with the previous blend and its performance (BTE, BSFC) and emission (HC, CO, CO2, NOx,…
 

Development of high power density diesel engine for constant speed application

TMTL-Rakesh K
  • Technical Paper
  • 2019-28-2566
To be published on 2019-11-21 by SAE International in United States
Engine up gradation for higher power rating involves challenges that require hardware changes which not only increase cost but also demand higher space. This paper focuses on the up gradation of a 4 cylinder 4.9l CRDi engine from 24.03 kW/L to 30.75 kW/L by adjustment of various parameters to meet both emission and performance targets. Various challenges like higher exhaust temperature, increased peak firing pressure etc. were met using the proper calibration strategy. To meet SFC targets and keep peak firing pressures, exhaust temperatures within desired limits, different operating points for EGR, main injection timing, rail pressure have been optimized. The operating points for optimization were determined by conducting various drive trials on different type of load conditions in test bench. Calibration strategy involved the safe limits of NOx, soot, CO emissions, fuel consumption.pfp, and exhaust temperature. By using the same hardware we are thus able to achieve higher power rating for same engine and also meet CPCB 2 emission norms comfortably.
 

FABRICATION AND WEAR CHARACTERISTICS BASALT FIBER REINFORCED POLYPROPYLENE MATRIX COMPOSITES

Dhanalakshmi Srinivasan Institute of Tec-Thirugnana Sambandha T, Arun R
Dhanalakshmi Srinivasan institute of tec-Krishnaraj M
  • Technical Paper
  • 2019-28-2570
To be published on 2019-11-21 by SAE International in United States
Generally brake pads are manufacturing by use of asbestos materials, these materials are chemically harmful and toxic, affects human health. The present investigation fabricates polypropylene composites with mixing constant volume [5 Vol.%] of alumina nano particles and different volume percentages [0%, 5%, 10% & 15%] of basalt fibre by hand layup compression technique. The wear characteristics of polypropylene matrix composites were tested by dry sliding condition using pin on disc apparatus configuration with hardened steel counter-face at elevated temperature. The load was applied 30N to 70N with the interval of 20N and varying of sliding speed 300 rpm to 900rpm with the interval of 300rpm for the time period of 0-180 sec. The wear rate was decreases with addition of alumina nano particle and also increases the frictional force for the effect of basalt fibre content present in the composites. The co-efficient of friction was increases from 0.1 to 0.66 under normal loading condition.
 

A review on influence of different flushing methods on Material Removal Rate using EDM.

Manav Rachna International University-Gurpreet Singh Matharou
  • Technical Paper
  • 2019-28-2543
To be published on 2019-11-21 by SAE International in United States
Electrical release machining (EDM), is a material removal procedure whereby a coveted shape is acquired by utilizing electrical releases (sparks). Material is expelled from the work piece by a progression of quickly repeating current releases between cathode and anode, isolated by a dielectric fluid and subject to an electric voltage. At the point when the voltage between the two terminals is expanded, the power of the electric field in the volume between the anodes winds up more prominent than the quality of the dielectric (in any event in a few spots), which separates, enabling current to stream between the two cathodes. This wonder is the equivalent as the breakdown of a capacitor (condenser). Accordingly, material is expelled from the cathodes. Once the present stops (or is quit, contingent upon the sort of generator), new fluid dielectric is generally passed on into the between cathode volume, empowering the strong particles (flotsam and jetsam) to be diverted and the protecting properties of the dielectric to be reestablished. Including new fluid dielectric in the between anode volume is…
 

Effect of Fuel Type and Tip Deposits on Gasoline Direct Injection Fuel Injector End of Injection Spray Characteristics

Ford Motor Co., Ltd.-Mark Meinhart
Michigan Technological University-Robert A. Schroeter, Jeffrey Naber, Seong-Young Lee
  • Technical Paper
  • 2019-01-2600
To be published on 2019-10-22 by SAE International in United States
There has been a great effort expended in identifying causes of Hydro-Carbon (HC) and Particulate Matter (PM) emissions resulting from poor spray preparation, leading to characterization of fueling behavior near nozzle. It has been observed that large droplet size is a primary contributor to HC and PM emission. Imaging technologies have been developed to understand the break-up and consistency of fuel spray. However, there appears to be a lack of studies of the spray characteristics at the End of Injection (EOI), near nozzle, in particular, the effect that tip deposits have on the EOI characteristics. Injector tip deposits are of interest due to their effect on not only fuel spray characteristics, but also their unintended effect on engine out emissions. Using a novel imaging technique to extract near nozzle fuel characteristics at EOI, the impact of tip deposits on Gasoline Direct Injection (GDI) fuel injectors at the EOI is being examined in this work. Additionally, the impact of the test fuel used will also be evaluated. This work will present the large influence of fuel…
 

Assessing the Combined Outcome of Rice Husk Nano Additive and Water Injection Method on the Performance, Emission and Combustion Characters of the Low Viscous Pine Oil in a Diesel Engine

Anna University Chennai-Mebin Samuel P, Devaradjane Gobalakichenin
University College of Engineering Villupuram-Gnanamoorthi V
  • Technical Paper
  • 2019-01-2604
To be published on 2019-10-22 by SAE International in United States
The research work intends to assess the need and improvement of using a low viscous bio oil, RH (Rice Husk) Nano Particles and water injection method in enhancing the performance, emission and combustion characters of a diesel engine. One of the major setbacks for using biodiesel was its higher viscosity. Hence, a low viscous oil (Pine oil) which doesn’t need transesterification process was used as a biofuel in this study. To further improve its characteristics a non-metallic Nano additive produced from rice husk was added at 3 proportions (50, 100, 200 ppm) and the optimal quantity was found as 100ppm based on the BTE (brake thermal efficiency) value of 30.2% at peak load condition. This efficiency value was accompanied by a considerable decrease in pollutants like HC (Hydrocarbon), Smoke, CO (Carbon monoxide). On the contrary NOx (Oxides of Nitrogen) emission was found to be increased for all load values. At peak load, when compared with diesel, pine oil with RH has 19.2% increased NOx emission. To reduce this increased NOx emission, water was injected along…