Refine Your Search

Topic

Author

Affiliation

Search Results

Training / Education

Advanced Diesel Particulate Filtration Systems

2020-09-18
As diesel emissions regulations have become more and more stringent, diesel particulate filters (DPF) have become possibly the most important and complex diesel aftertreatment device. This seminar covers many DPF-related topics using fundamentals from various branches of applied sciences such as porous media, filtration and materials sciences and will provide the student with both a theoretical as well as an applications-oriented approach to enhance the design and reliability of aftertreatment platforms.
Training / Education

Fundamental Concepts of Turbocharging Modern Engines Current Practices and Trends

2020-06-16
Turbocharging is rapidly becoming an integral part of many internal combustion engine systems. While it has long been a key to diesel engine performance, it is increasingly seen as an enabler in meeting many of the efficiency and performance requirements of modern automotive gasoline engines. This web seminar will discuss the basic concepts of turbocharging and air flow management of four-stroke engines. The course will explore the fundamentals of turbocharging, system design features, performance measures, and matching and selection criteria.
Training / Education

Emissions-Related OBD Systems A Design Overview

2020-03-27
On-board diagnostics, required by governmental regulations, provide a means for reducing harmful pollutants into the environment. Since being mandated in 1996, the regulations have continued to evolve and require engineers to design systems that meet strict guidelines. This one day seminar is designed to provide an overview of the fundamental design objectives and the features needed to achieve those objectives for generic on-board diagnostics. The basic structure of an on-board diagnostic will be described along with the system definitions needed for successful implementation.
Technical Paper

Electric hybrid system Architecture & Functional component selection criteria for application based Off-Highway segment

2019-11-21
2019-28-2495
Hybridization continues to be growing trend in vehicular applications. Current study shows a holistic system approach for the design & integration of the powertrain in Off-Highway tractor applications. It includes study & benchmarking of system architecture of an all-electric and diesel-electric drive systems as per application requirement. Further comprehensive study was done on functional components for an electric powertrain, which includes electric drives, batteries & controllers. Selection & design of these components was studied & component selection approach was developed for typical Off-Highway tractor application. Current study was divided into three parts. 1.Study of different Off-Highway tractor applications & selection of all-electric, series & parallel hybrid architectures as per application requirement.
Technical Paper

Enhanced Road condition monitoring for developing countries

2019-11-21
2019-28-2462
"According to Data on Road accidents in India by Transport Research Wing of Ministry of Road Transport & Highways, more than 4 Lakhs road accidents happened every year from year 2003 to 2017. Poor road conditions and badly designed roads are the common cause of road accidents besides the driver's negligence. Poor roads and badly designed speed breakers are common in developing countries. Apart from accidents, poor road conditions can cause excessive fuel consumption & damage to vehicles. Road condition monitoring solutions aim to warn the drivers of upcoming bad patch on the road and optionally report road conditions to authorities. There are multiple existing solutions that use motion sensors and GPS to detect a bad patch on the road. The presented solution builds over capability of existing solutions by adding useful features making it more practical and useful.
Technical Paper

Automobile Exhaust Emmision Control- A review

2019-11-21
2019-28-2382
Since the 20th century increase in the number of cars in the major cities is been a point of concern because of the toxic gasses being emitted from the engine of an automobile. These gasses are polluting the atmosphere and degrading the air to breathe. The main gasses responsible for the degradation of air quality are carbon monoxide, hydrocarbon and oxides of nitrogen. There is a necessity to find ways to reduce the pollution emitted into the atmosphere from the automobile. The source of emission is either evaporation from fuel tank or carburetor which is easy to be dealt with or harmful gasses due to improper combustion which is a concern for the environment. The two ways to reduce these emissions are, modification in the engine to minimize the production of harmful gases and to treat the harmful gasses emitted from the engine before blowing it into the atmosphere from the exhaust. Catalysts help to break harmful gasses into smaller compounds that are environment-friendly.
Technical Paper

Aerodynamic Analysis of a Passenger Car to Reduce Drag Using Active Grill Shutter and Active Air Dam

2019-11-21
2019-28-2408
Active aerodynamics can be defined as the concept of reducing drag by making real-time changes to certain devices such that it modifies the airflow around a vehicle. Using such devices also have the added advantages of improving ergonomics and performance along with aesthetics. A significant reduction in fuel consumption can also be seen when using such devices. The objective of this work is to reduce drag acting on a passenger car using the concept of active aerodynamics with grill shutters and air dams. First, analysis has been carried out on a baseline passenger car and further simulated using active grill shutters and air dams for vehicle speed ranging from 60 kmph to 120 kmph, with each active device open from 0° to 90°. The optimized model is then validated for a scaled-down prototype in a wind tunnel at 80kmph. Vehicle has been modelled using SolidWorks and the simulation has been carried out using ANSYS Fluent.
Technical Paper

Experimental investigations on CO2 recovery from petrol engine exhaust using adsorption technology

2019-11-21
2019-28-2577
Energy policy reviews state that automobiles contribute 25% of the total Carbon-di-oxide (CO2) emission. The current trend in emission control techniques of automobile exhaust is to reduce CO2 emission. We know that CO2 is a greenhouse gas and it leads to global warming. Conversion of CO2 into carbon and oxygen is a difficult and energy consuming process when compared to the catalytic action of catalytic converters on CO, HC and NOX. The best way to reduce it is to capture it from the source, store it and use it for industry applications. To physically capture the CO2 from the engine exhaust, adsorbents like molecular sieves are utilized. When compared to other methods of CO2 separation, adsorption technique consumes less energy and the sieves can be regenerated, reused and recycled once it is completely saturated. In this research work, zeolite X13 was chosen as a molecular sieve to adsorb CO2 from the exhaust.
Technical Paper

Powertrain Modelling of a Fuel Cell Three-Wheeler for the Indian Roads

2019-11-21
2019-28-2513
The three wheeled vehicles are extremely popular in the Indian subcontinent and are constantly posting a positive growth in sales. Given this trend and their polluting nature they can be noted as sizeable contributors to the air quality issues plaguing the metropolitan cities. With the nation aiming at eradicating the use of internal combustion engines (ICE) in passenger transportation by the year 2030, there have been attempts to convert ICE three-wheelers to battery electric three-wheeler. However, the battery electric three-wheelers, which are quite commonly used for end-mile connectivity, serve to highlight the demerits of the technology pertaining to their range, charge cycle, power to weight ratio, and efficiency. Hydrogen based are fuel cells gaining traction as a potential alternative to batteries due to their efficient and clean power generation.
Technical Paper

DEVELOPMENT OF A FLEET MANAGEMENT SYSTEM FOR AN OFF-HIGHWAY VEHICLE

2019-11-21
2019-28-2439
DEVELOPMENT OF A FLEET MANAGEMENT SYSTEM FOR AN OFF-HIGHWAY VEHICLE V.Jagannathan 1.a* , B.Jaiganesh 2.b & S.Sudarsanam 3.c Mahindra & Mahindra Limited, Mahindra Research Valley, Mahindra World City, Anjur PO, TN, India Corresponding author Email- V.JAGANNATHAN@mahindra.com Managing an off-highway vehicle fleet during validation is a challenging task. Complexity is acquainted when more than 100 vehicles with different horse power (hp) & with different product configuration working across India and other parts of countries. Traditionally, a tractor validation involves data collection such as usage hours (Hour meter reading on cluster), locations etc. which are recorded in spread sheet and updated to the respective project owners on daily basis through mail communications. A manual recording and consolidation of tractors validation status is prone to error, reiterative work, consumes more resource and effort.
Technical Paper

Effect of Gasoline-Ethanol blends on GDI engine to reduce cost of vehicle ownership

2019-11-21
2019-28-2379
A major challenge for combustion development is to optimize the engine for improved fuel economy, reduce greenhouse gases. Stringent CAFÉ and emission norms require the customer to pay higher capital on vehicles. To offset the cost of ownership- cheaper and alternative energy sources are being explored. Ethanol blend with regular Gasoline and CNG are such alternative fuels. The study was carried on turbo-charged gasoline direct injection engine. The effect of ethanol on engine and vehicle performance is estimated and simulated numerically. The work is split into three stages: first the base 1D engine performance model was calibrated to match the experimental data. In parallel, vehicle level Simulink model was built and calibrated to match the NEDC cycle performance. Second, the thermal efficiency of the ethanol blend is calculated as a linear function of theoretical Otto cycle efficiency.
Technical Paper

Experimental Investigation on Performance and Emission Characteristics of a Single Cylinder CRDI Engine Fueled with Diesel-Methanol Blend

2019-11-21
2019-28-2380
The diesel engine is widely used for its high thermal efficiency and better fuel conversion efficiency. However, increasing usage of petroleum fuel and environmental degradation motivates to use renewable biofuels as a replacement to conventional diesel. Biofuels produced from non-edible sources can be used as a partial substitute of diesel for the significant growth of fuel economy and reduction of environmental pollution. Methanol can be implemented as a blended fuel in the diesel without affecting engine design. In this study, the effect of diesel methanol blends and injection parameters such as fuel injection pressure (FIP)and start of injection (SOI) on a common rail direct injection (CRDI) diesel engine performance and emission were investigated. Four blends were prepared by mixing diesel with methanol (5%, 10%, 15% and 20% by mass) and adding a certain amount of oleic acid and iso-butanol to get a stable blend.
Technical Paper

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

2019-11-21
2019-28-2496
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.
Technical Paper

Comparative Experimental Investigation of Thumba and Argemone oil Based Dual Fuel Blend in a Diesel Engine for its Performance and Emission Characteristics

2019-11-21
2019-28-2375
An experimental investigation was conducted to explore the possibility of using the Thumba oil (Citrullus Colocyntis) and Argemone Mexicana (non-edible and adulterer to mustard oil) as a dual fuel blend with diesel as an alternative of using pure diesel for its performance and emission characteristics. The work was carried on a single cylinder, four strokes, In-line overhead valve, direct injection compression ignition engine. The argemone and thumba biodiesel were produced using the transesterification process and thereafter the important physio-chemical properties of produced blends were investigated. Four dual biodiesel blends like ATB10 (5% Argemone, 5% Thumba and 90% Diesel), ATB20, ATB30 and ATB40 were prepared for investigation process. The operating conditions adopted for the study was the entire range of engine loads and speed (1000-1500 r/min) keeping the injection pressure and injection timing at the OEM settings.
Technical Paper

Impact of wheel-housing on aerodynamic drag and effect on energy consumption on an electric bus body

2019-11-21
2019-28-2394
Role of Wheel and underbody Aerodynamics of vehicle in the formation of drag forces is detrimental to the fuel (energy) consumption during the course of operation at high velocities. This paper deals with the CFD simulation of the flow around the wheels of a bus with different wheel housing arrangements. Based on benchmarking, a model of a bus is selected and analysis is performed. The aerodynamic drag coefficient is obtained and turbulence around wheels is observed using ANSYS Fluent CFD simulation for different combinations of wheel-housing- at the front wheels, at the rear wheels and both in the front and rear wheels. The drag force is recorded and corresponding influence on energy consumption of a Bus is evaluated mathematically. A comparison is drawn between energy consumption of bus body without wheel housing and bus body with wheel housing. The result shows a significant reduction in drag coefficient and fuel consumption.
Technical Paper

Development of Dedicated Lubricant for Hydrogen Fueled Spark Ignition Engine

2019-11-21
2019-28-2511
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.
Technical Paper

Computerized Experimental Investigation on Performance & Exhaust Emission of Twin Cylinder Adiabatic Diesel Engine coated with YSZ

2019-11-21
2019-28-2548
The fuel consumption and performance of the Internal Combustion engine is improved by adopting concepts of an adiabatic engine. An experimental investigation for different load conditions is carried out on a water-cooled, constant-speed, twin-cylinder diesel engine. This research is intended to emphasize energy balance and emission characteristic for standard uncoated base engine and adiabatic engine. The inner walls of diesel engine combustion chamber are thermally insulated by a top coat of Metco 204NS yttria-stabilized zirconia (Y2O3ZrO2) powder (YSZ) of a thickness of 350 mm using plasma spray coating technology. The same combustion chamber is also coated with TBC bond coats of AMDRY 962 Nickle chromium aluminum yttria of thickness of 150 mm. The NiCrAlY powder specially designed to produce coating’s resistance to hot corrosion.
Technical Paper

Design and Analysis of Hydrostatic Transmission (HST) system for OFF-Highway vehicle

2019-11-21
2019-28-2453
The development of any country depends on capital energy consumption. Due to technological advancements, people want more comfort and performance with the tractors and at the same time less fatigue and reduced fuel consumption. At present, most of the tractors uses conventional Manual Transmission (MT) as main driveline, though there is research going on, with implementation in few cases, for shifting from conventional MT to advanced transmissions. A Continuously Variable Transmission (CVT) provides Step Lesley an infinite number of effective gear ratios between maximum to minimum value. Hydrostatic Transmission (HST) is one of the types of CVT. HST can improve the fuel efficiency and smooth drivability than a MT without compromising vehicle performance. The development of HST in tractor is less costly as several existing components such as clutch, large number of gears in transmission system can be removed along with reducing of driver fatigue.
Technical Paper

A DIGITALIZED VALIDATION APPROACH FOR REAL TIME AND REMOTE MONITORING OF AN OFF HIGHWAY VEHICLE PERFORMANCE

2019-11-21
2019-28-2531
A DIGITALIZED VALIDATION APPROACH FOR REAL TIME AND REMOTE MONITORING OF AN OFF-HIGHWAY VEHICLE PERFORMANCE V.Jagannathan 1.a* , B.Jaiganesh 2.b & S.Sudarsanam 3.c Mahindra & Mahindra Limited, Mahindra Research Valley, Mahindra World City, Anjur PO, TN, India Corresponding author Email- V.JAGANNATHAN@mahindra.com Validation of agricultural tractors is necessary to ensure that these machines perform to their expected potential and are aptly matched with implements. Testing these machineries in real-time while performing activities in the field allows a bigger picture to be seen; the performance data incorporates the effects of many external factors (Soil, Climate etc.). Tractor Performance data apprehending is the vital part of validation. Data acquisition of key performance parameters during field validation in different application/different countries is of utmost importance.
Technical Paper

Design and Development of Constant speed diesel engine up to 20 bar BMEP with Inline FIS

2019-11-21
2019-28-2549
Design and Development of Constant speed diesel engine up to 20 bar BMEP with Inline FIS Remesan CB, Sanjay Aurora, Vasundhara V Arde, Vishal Kumar, Om Prakash Yadav, Piyush Ranjan Eicher Engines (A unit of TAFE Motors & Tractors Ltd.) Abstract Development trend in diesel engine is to achieve more power from same size of engine. With increase in brake mean effective pressure (BMEP), the peak firing pressure will also increase. The methodology to control the peak firing pressure on higher BMEP is the major challenge. We achieved better SFC with CPCB II emission targets on a constant speed engine. This study involves a systematic approach to optimize combustion parameters with a cost effective and robust inline Fuel Injection System. This paper deals with the strategies applied and experimental results for achieving the power density of 25kW/lit with Inline FIP by keeping lower Peak firing pressure.
X