Dr. S. Saravanan

S. Saravanan completed his Ph.D. at Vellore Institute of Technology, Vellore in 2023. He received his post-graduate degree specialization in IC engines from Sri Venkateswara College of Engineering, Sriperumbudur with distinction and undergraduate degree from Anna University affiliated college in first class with distinction. He is working as an Assistant Professor in Sri Venkateswara College of Engineering, Sriperumbudur since 1st March, 2021. He has published three Thomson Reuters indexed international journals (Fuel IP: 5.578) and eight Scopus indexed international journals till date. I was awarded reviewer recognition from journals like Alexandria Engineering Journal, Transportation Research Part D, Energy Conversion and Management, Engineering Science and Technology, an International Journal, Energy and Environment, International Journal of Heat and Technology, Petroleum Science and Technology and Advances in Mechanical Engineering as a reviewer and I reviewed more than 20 numbers

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Transportation, Automotive Engineering, General Energy

Scopus Publications

Carbon Dioxide Capture using Adsorption Technology in Diesel Engines
International Journal of Renewable Energy Research, 2020
An experimental study to analyze influence of porous media combustor on performance and emission characteristics of a DI diesel engine
S. Saravanan, Ramesh Kumar Chidambaram, V. Edwin Geo
Fuel, 2020
Role of thermal barrier coating and porous medium combustor for a diesel engine: An experimental study
S. Saravanan, C. Ramesh Kumar, Arivalagan Pugazhendhi, Kathirvel Brindhadevi
Fuel, 2020
Experimental Investigations on CO2 Recovery from Engine Exhaust Using Adsorption Technology
Saravanan S, Chidambaram Ramesh Kumar
SAE Technical Papers, 2019
<div class="section abstract"><div class="htmlview paragraph">Energy policy reviews state that automobiles contribute 25% of the total Carbon dioxide (CO<sub>2</sub>) emission. The current trend in emission control techniques of automobile exhaust is to reduce CO<sub>2</sub> emission. We know that CO<sub>2</sub> is a greenhouse gas and it leads to global warming. Conversion of CO<sub>2</sub> into carbon and oxygen is an energy-consuming process compared to the catalytic converters. The best way to reduce CO<sub>2</sub> is to capture it from the source, store it and use it for industrial applications. To physically capture the CO<sub>2</sub> from the engine exhaust, adsorbents like molecular sieves are utilized. In comparison to other CO<sub>2</sub> separation methods, adsorption technique consumes less work and energy. Moreover, 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 CO<sub>2</sub> from the exhaust. A chamber was designed to store the zeolite and it is attached to the exhaust manifold. The selected engine was a single-cylinder Briggs and Stratton petrol engine. The experiments were conducted in two phases, the first phase to adsorb and the second phase to regenerate. Temperature pressure swing adsorption was chosen as the preferred process for the regeneration. This study was conducted by varying chamber length in three measurements and sieve quantities. The gas separated from the sieves during regeneration is tested using AVL Ditest analyser to study the percentage of CO<sub>2</sub> adsorbed from the engine exhaust. From the results, it was found that 70% of the CO<sub>2</sub> emissions were absorbed using low cost zeolite sieves.</div></div>
Study of NOx Reduction Efficiency in NSR and NSR-SCR Combined Systems
Saravanan Supramani, Ramesh Kumar Chidambaram
SAE Technical Papers, 2019
<div class="section abstract"><div class="htmlview paragraph">The present study was carried out to analyze the catalytic action of K<sub>2</sub>O-Al<sub>2</sub>O<sub>3</sub> in NO<sub>x</sub> Storage and Reduction (NSR) monolith catalyst and Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> in Selective Catalytic Reduction (SCR) monolith catalyst. The core objective of this investigation is to determine the maximum percentage of Oxides of Nitrogen (NO<sub>x</sub>) reduction in NSR and NSR-SCR combined system with respect to engine exhaust gas temperature and compares the results with the results of the conventional mode of operation. To accomplish this task monolith ceramic bricks were coated with K<sub>2</sub>O-Al<sub>2</sub>O<sub>3</sub> (NSR) and Fe<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub> (SCR) catalyst and were placed in different configurations inside the catalytic chamber. Several trials were attempted to get the optimal operating temperature that has a maximum NO<sub>x</sub> removal efficiency when successively connecting a single NSR catalyst and the combined NSR-SCR double bed catalyst. Single NSR monolith at 320 °C, showed the best NO<sub>x</sub> conversion rate of 74%. The double NSR-SCR configuration permitted the SCR catalyst storing ammonia to respond with NO<sub>x</sub> leaving from the NSR. The SCR reaction between ammonia which leaves from NSR, later adsorbed by SCR and the NO that is not reacted in NSR which enters SCR bring about a total NO<sub>x</sub> reduction efficiency of 93%. Double bed NSR - SCR is better than single stage NSR by 20%. The study also revealed that the given system is not applicable for engines having exhaust temperature range less than 250 °C as they are unable to provide sufficient activation energy.</div></div>
Assessment on Performance, Combustion and Emission Characteristics of Diesel Engine Fuelled with Blends of Diesel, Algae Biodiesel and Heptanol
Supramani Saravanan, Sagar Gupta, Rameshkumar Chidambaram, Aatmesh Jain, Kamalkishore Vora
SAE Technical Papers, 2019
<div class="section abstract"><div class="htmlview paragraph">Because of higher NO<sub>x</sub> and PM emissions Compression Ignition (CI) engines are slowly being replaced by gas engines in metro cities though CI engine have better thermal efficiency and emit less Carbon monoxide (CO) and Unburned Hydrocarbons (UHC) emission than SI engines. Pollutants formed during combustion, depleting fossil fuels and continuous raising fuel price pushes the research community to find new alternative fuels which can be used along with diesel or replace the diesel without making major modifications in the current engine. The objective of this research work is to derive bio-diesel fuel from the source of algae and use it as a fuel by blending with commercially available diesel fuel. Heptanol is added along with algae bio-diesel and diesel blend to improve the ignition quality of the blend. Tests were conducted on a single cylinder constant speed, water cooled stationary diesel engine with different blends proportions of heptanol-biodiesel-diesel. The experimental results obtained for seven different types of blend proportions were compared with baseline diesel values. This research study reveals significant decrease in HC, CO, CO<sub>2</sub> and NO<sub>x</sub> emission with marginal rise in smoke level. Amongst these seven samples, maximum of 14.7% NO<sub>x</sub> emission was reduced with S6 blend. At full load maximum Brake Thermal Efficiency (BTE) of 34.96% is also achieved with the same S6 blend which is a combination of 10% heptanol, 20% biodiesel and rest diesel. On overall comparison, sample S6 found to be better to operate in conventional diesel engine without any prior modification.</div></div>
Impacts on NOx emission control measures to achieve Euro VI limits - A review
Saravanan Supramani, Chidambaram Kumar
Journal Europeen Des Systemes Automatises, 2019
Received: 9 January 2019 Accepted: 30 March 2019 The intention of this review study is to investigate the control measures of NOx emission. Even though the diesel engine sector plays a pivotal role in economic growth, it brings an unavoidable environmental deterioration. The current work reviews the effect of EGR, boost pressure variation, fuel modification, advanced engine combustion concepts, and after treatment processes for reducing NOx emission to EURO VI level. The outcomes of bio-diesel performance and other emission characteristics are too highlighted. In addition to this, specific attention is given to Porous Medium Combustion (PMC) technology adopted in diesel engines and a separate section is devoted. In order to facilitate a better understanding of PMC technology, simulation and experimental results of NOx emission are reported. Through this porous medium experimental study, it was found that NOx, HC and CO emissions were reduced significantly. Reducing the NOx and PM emissions might simultaneously increase the chance of usage of diesel and biodiesel blends fuelled CI engines in near future. The findings of this research work serve as best possible ways for achieving ultra-low NOx emission subjected to EURO VI norms level is suggested in future directions to give the reader insight and the track for the future investigation.
NOx Control Using Porous Medium Combustion in di Diesel Engine - An Attempt through Simulation Study
S Saravanan, C Ramesh Kumar, C D Naiju
SAE Technical Papers, 2018
<div class="section abstract"><div class="htmlview paragraph">At present, the emissions from an internal combustion engine exhaust is reduced by exhaust after treatment devices. However, after treatment devices like SCR which is used to control NOx, results in additional weight, high costs and rejects toxic gases like ammonia etc. To overcome this problem, a new combustion technique should be developed to improve the primary combustion processes inside the combustion chamber itself to reduce these exhaust gas emissions. This work presents the results of such a technique that is applicable to direct injection, Diesel engines. The technique is based on the porous medium combustion (PMC) technology, which is developed for steady state household and industrial combustion processes. Based on the adiabatic combustion in porous medium (PM), a porous medium in engine piston as a concept is proposed here to achieve improved combustion efficiency and low emissions. Using a commercial code CONVERGE the entire cycle is simulated and presented here. Temperature evolution of the PM and its effects are also discussed in detail. The study is carried out on a single cylinder, four stroke, water cooled, direct injection Diesel engine. The results show that NO<sub>x</sub> is reduced by 77% and soot by 80%. However remaining pollutants CO and HC increased by 91.6%, 86.5% which can be reduced by a simple two way catalytic converter. Also mean temperature during whole cycle is reduced by 300 K which is the main reason for reduction of emissions like NO<sub>x</sub>. Introducing porous medium inside the piston bowl creates homogeneous mixture. The homogeneous mixture formation and 3-D self-ignition without flame front in the PM material creates an effective combustion. Moreover, the heat recuperation in PM during the previous cycle is used for warming up the compressed air and evaporate the fuel to create a homogenous mixture in the respective forthcoming cycle.</div></div>
Investigation of combustion, performance and emission characters of compression ignition engine fuelled with diesel blends of linseed and cottonseed oil
C. Ramesh Kumar, S. Saravanan, P. Gopal
Progress in Industrial Ecology, 2017
Environmental pollution and reducing fossil fuel reserves are the twin crisis that forces the automotive industry today to develop bio-based sustainable alternative fuel. This work aims to study the performance and emission characteristics of a direct injection diesel engine fuelled with blends of diesel, biodiesel blends derived from linseed oil and cottonseed oil as fuel. Four samples namely diesel, bio diesel blends of 5%, 10% and 15% which are referred as samples 1, 2, 3 and 4, respectively are used as fuel. Experimental study shows significant increase in smoke emission by around 24% and 47% with samples 3 and 4 when compared with sample 1. On average, reduction in unburned hydrocarbon emission by 52% and 37% was achieved with samples 2 and 3 when compared to sample 1. When compared to sample 1, NOx emission was observed to be reduced by 24% when the engine was operated with sample 4.
An experimental study on premixed charge compression ignition-direct ignition engine fueled with ethanol and gasohol
S. Saravanan, K. Pitchandi, G. Suresh
Alexandria Engineering Journal, 2015
This paper investigates the combustion, performance and emission characteristics of a partial Premixed Charge Compression Ignition-Direct Injection (PCCI-DI) Engine with premixed fuels ethanol and gasohol (90% gasoline and 10% ethanol by volume) along with direct injection of diesel fuel into the combustion chamber. The experiments were conducted in a four stroke, naturally aspirated, air cooled, constant speed diesel engine with 20% premixed fuels from no load to full load condition. The addition of premixed fuel enhances the air fuel mixture strength and for that the combustion duration is decreased in dual fuel operation. From this experiment it was observed the 70% and 67% reduction in smoke emission from premixed gasohol and ethanol fuel when compared to neat diesel operation. In addition to that, the oxides of nitrogen emissions were reduced to 30% and 24% for premixed gasohol and ethanol fuel. In particular, premixed gasohol reduces the smoke and oxides of nitrogen emissions more than the ethanol and also, significant increase in brake thermal efficiency was noted in 20% premixed gasohol and ethanol in dual fuel mode, when compared to neat diesel operation.