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Development of Dedicated Lubricant for Hydrogen Fueled Spark Ignition Engine

Indian Institute of Technology - Delhi-K A Subramanian
Indian Oil Corporation Limited-Sauhard Singh, 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…
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Durability Studies on Gas Engine Oil along with Performance and Emission Characteristics of Heavy Duty Turbocharged Natural Gas Powered Engine

Ashok Leyland Technical Center-G Senthilkumar, M Sathyanandan, P Mahesh
Indian Oil Corp., Ltd.-Sauhard Singh, S K Mishra, V K Bathla, Reji Mathai, Shyam Singh, Deepak saxena, SSV Ramakumar
Published 2018-04-03 by SAE International in United States
Natural gas has been considered and implemented as alternative fuel to gasoline and diesel powered vehicles worldwide. Although natural gas belongs to petroleum fuel family, it has considerable recourses worldwide to ensure long energy security and comparatively lower carbon to hydrogen ratio that make it more environment friendly. This paper presents the effect of long duration endurance test on gas engine oil along with performance and emission characteristics of 5.8 L turbocharged heavy duty natural gas engine. The six cylinder engine was chosen due to its importance for urban bus transportation. The engine was subjected to long duration endurance test of 800 hrs with closed loop monitoring and controlled conditions as per 6 mode engine load cycle. During the complete endurance test of 800 hours, performance and emission characteristics of the engine were analyzed after completion of every 100 hours as per Full Throttle Performance Test and European Transient Cycle (ETC). Also, engine oil sampling and analysis along with oil consumption were undertaken after completion of every 100 hrs. The durability studies were performed on state of the art transient…
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Comparative Study of Unregulated Emissions on a Heavy Duty CNG Engine using CNG & Hydrogen Blended CNG as Fuels

SAE International Journal of Engines

Indian Oil Corp., Ltd.-Sauhard Singh, Sumit Mishra, Reji Mathai, A K Sehgal, R Suresh
  • Journal Article
  • 2016-01-8090
Published 2016-09-27 by SAE International in United States
One of the most promising solutions to address the twin problems of transport related pollution and energy security is to use alternative fuels. Compressed Natural gas (CNG) has been widely used in India to address the menace of pollution from commercial vehicles in cities like Delhi. Hydrogen blended compressed natural gas (HCNG) as a fuel has potential for further reducing harmful emissions and greenhouse gases. Enriching hydrogen in CNG improves combustion characteristic of CNG and reduces carbonyl emissions. Due to growing concerns over un-regulated emissions and their effect on human health, it is imperative to estimate un-regulated emissions from such alternatives for assessing overall impact of such fuels.Presently world over, emission legislations mainly addresses pollutants like CO, HC, NOx, CH4, NH3, PM etc. Relatively higher quantity in exhaust qualifies these pollutants to be monitored and controlled. But as the consumption of alternative fuels becomes comparable to that of the liquid fuels, other unregulated emissions like Methanol (CH3OH), Ethanol (C2H5OH), Formaldehyde (HCHO), Acetaldehyde (CH3CHO), Formic Acid (HCOOH), Acetic Acid (CH3COOH), Propene (C3H8), Ethylene (C2H4), Ethyne (C2H2)…
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Evaluation of Long Drain Gas Engine Oil on Heavy Duty Engine Using Hydrogen Blended CNG

Indian Oil Corporation Limited-Sauhard Singh, Anil Bhardwaj, Reji Mathai, A K Sehgal, R Suresh, B P Das
Tata Motors Limited-Nishant Tyagi, Jaywant Mohite, N B Chougule
Published 2015-04-14 by SAE International in United States
The ever increasing demand of fuels for vehicles can only be met by use of alternate fuels like Compressed Natural Gas (CNG) and Hydrogen (H2). The 18 percent hydrogen enriched CNG fuel referred to as HCNG has the potential to lower emissions and is considered to be the first step towards promotion of a Hydrogen economy. While, automotive industry matures up with the usage of new engines, lubricant manufacturers are also moving on to the next stage by formulating oils to be used in gas engines such as CNG, HCNG etc.This paper presents the evaluation of gas engine oil on 6-cylinder heavy duty CNG engine using HCNG. The six cylinder engine was chosen due to its importance for urban bus transportation. The engine was optimized for using HCNG fuel. Initial performance of the engine using HCNG was compared vis-à-vis CNG and, thereafter, the engine was subjected to endurance test of 500 hours as per 8 mode engine simulated driving cycle. It has been observed that HCNG shows reduction of CO, THC and CH4 emissions and…
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Performance Analysis of HCNG Fuel on Sequential Gas Injection Based Heavy Duty Engine

Indian Oil Corp. Ltd.-Sauhard Singh, Reji Mathai, A. K. Sehgal, R. Suresh, B. P. Das
Tata Motors Ltd.-Nishant Tyagi, Jaywant Mohite, N. B. Chougule
Published 2015-03-10 by SAE International in United States
Depletion of fossil fuel reserves, the unsteadiness of their prices and the increasingly stricter exhaust emission legislation put forward attention of world towards use of alternate fuels. The ever increasing demand for ecologically friendly vehicles can be met by use of clean fuels like Compressed Natural Gas (CNG) and Hydrogen (H2). Lower carbon to hydrogen ratio of CNG makes it a cleaner fuel, due to this CNG is gaining popularity as an internal combustion (IC) engine fuel in transport sector. Hydrogen fuel for IC engines is also being considered as a future fuel due to its simple carbon less structure. However, several obstacles have to be overcome before widespread utilization of hydrogen as an IC engine fuel can occur in the transport sector. The 18 percent hydrogen enriched CNG fuel referred to as HCNG has the potential to lower emissions and could be considered a first step towards promotion of a Hydrogen economy.This paper presents the optimization strategy for HCNG on 6-cylinder sequential gas injection based heavy duty CNG engine. The six cylinder engine was…
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Effect of Hydrogen on the Performance & Emission Characteristics of a 6.0 L Heavy Duty Natural Gas Engine

Ashok Leyland Technical Center-S Nagarajan, S Yoganandam, G Senthil Kumar, G Gopal
Indian Oil Corporation Limited-Sauhard Singh, Reji Mathai, Ved Singh, A K Sehgal, B Basu, R K Malhotra
Published 2014-09-30 by SAE International in United States
In this paper, experimental evaluation was carried out on a 6.0 L heavy duty CNG engine which has been optimized for 18 percent hydrogen blended CNG (HCNG). Optimization test results shows that use of HCNG results in reduced CO, THC & CH4 emissions by 39, 25 & 25 percent respectively and increase in NOx by 32 percent vis-a-vis CNG. After optimization the engine was subjected to endurance test of 600 hours as per 15 mode engine simulated city driving cycle with HCNG. The performance & emission characteristics of the engine were analyzed after completion of every 100 hours as per European Transient Cycle (ETC). Test results indicate that there were no significant changes observed in engine power output over the complete endurance test of 600 hrs with HCNG. Specific fuel consumption (SFC) measurements were consistent at all the 15 modes of engine simulated city driving cycle. It was observed from the test results that over the period of endurance test of 600 hrs with HCNG, all the major exhaust emissions species such as CO, THC,…
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