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Soni, Gaurav
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Replacing Twin Electric Fan Radiator with Single Fan Radiator

Engine Design & Testing-Tushar Warkhade
Tata Technologies, Ltd.-Aashish Bhargava, Gaurav Soni
  • Technical Paper
  • 2019-28-2381
Published 2019-11-21 by SAE International in United States
Downsizing is one of the crucial activities being performed by every automotive engineering organization. The main aim is to reduce - Weight, CO2 emissions and achieve cost benefit. All this is done without any compromise on performance requirement or rather with optimization of system performance.This paper evaluate one such optimization, where-in radiator assembly with two electric fan is targeted for downsizing for small commercial vehicle application. The present two fan radiator is redesigned with thinner core and use of single fan motor assembly. The performance of the heat exchanger is tested for similar conditions back to back on vehicle and optimized to get the balanced benefit in terms of weight, cooling performance and importantly cost. This all is done without any modification in vehicle interface components except electrical connector for fan. The side members and brackets design is also simplified to achieve maximum weight reduction.Further Cooling system performance of engine is evaluated along with Fuel efficiency; results are compared with present configuration.
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Optimization of Bio-Diesel Fuel Filter Size Media and Configuration for Longer Service Interval

Tata Technologies, Ltd.-Gaurav Soni, Aashish Bhargava, Sujit Gavade
  • Technical Paper
  • 2019-28-2391
Published 2019-11-21 by SAE International in United States
Bio diesel is one of the most promising fuel which can not only replace the conventional fuels but also environment friendly in terms of Greenhouse gases emission. Adaptation of Bio diesel comes with reduced maintainability and high maintenance cost. Blends of biodiesel and conventional diesel are most commonly used in automotive diesel engines. Biodiesel is most popular choice as an alternate fuel of fossil diesel due to its easy availability, eco-friendly nature and minimum change in existing diesel engine for retro fitment.In this paper efforts have been taken to optimize the life of Fuel filter for bio diesel application. For improving Fuel filter life, modifications carried out in Fuel filter media, size and configuration. Further, Fuel filter tested on Engine test bed and Vehicle to establish the life of filter in real world usage condition. Testing Results were compared with existing diesel fuel filter.
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Optimization of Compression Ratio for DI Diesel Engines for Better Fuel Economy

Tata Technologies, Ltd.-Sujit Gavade, Aashish Bhargava, Gaurav Soni, Chandrakant Deshmukh
  • Technical Paper
  • 2019-28-2431
Published 2019-11-21 by SAE International in United States
Fuel economy is becoming one of the key parameter as it does not only account for the profitability of commercial vehicle owner but also has impact on environment. Fuel economy gets affected from several parameters of engine such as Peak firing pressure, reduction in parasitic losses, volumetric efficiency and thermal efficiency. Compression ratio is one of key design criteria which affects most of the above mentioned parameters, which not only improve fuel efficiency but also results in improvement of emission levels.This paper evaluates the optimization of Compression ratio and study its effect on Engine performance.The parameters investigated in this paper include combustion bowl volume in Piston and Cylinder head gasket thickness as these are major contributing factors affecting clearance volume and in turn the compression ratio of engine. Based on the calculation results, an optimum Compression Ratio for the engine is selected. Further Engine testing carried out with selected Compression ratios and parameters such as Fuel efficiency, In-cylinder pressure, and Brake thermal efficiency and Ignition delay were compared.
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Development of Low Cost Closed Crankcase Ventilation With Oil Mist Separation System on Light Duty Diesel Engine

Tata Technologies, Ltd.-Vishal Kailas Walhekar, Sujit Gavade, Gaurav Soni, Aashish Bhargava
  • Technical Paper
  • 2019-28-2578
Published 2019-11-21 by SAE International in United States
Currently automotive industry is facing bi-fold challenge of reduction in greenhouse gases emissions as well as low operating cost. On one hand Emission regulations are getting more and more stringent on other hand there is major focus on customer value proposition.In engine emission the blow by gases are one of the source of greenhouse gases from engine. Blow-by gases not only consist of unburnt hydrocarbons but also carry large amount of oil. If oil is not separated from these gases, it will led to major oil consumption and hence increase total operating cost of Vehicle.Considering the above challenges, effort taken to develop a low-cost closed crankcase ventilation with oil mist separation system on diesel engine. For cost-effective solution, two different design and configuration of oil mist separation system developed.Further, engine with two different above said configuration has been tested for blow-by gasses and oil consumption measurement on Engine test bed and vehicle to understand the behavior in real environment. Further results compared for both configuration and further actions proposed.
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