Energy, exergy and environmental assessments of rubber seed oil methyl ester-diesel blend for an agricultural diesel engine under the influence of exhaust gas recirculation S. Murugapoopathi, V. Manieniyan, C. Rajaganapathy, R. Sathiyamoorthi, K. Thiruselvam, Damodharan Dillikannan Environmental Progress and Sustainable Energy, 2025 The purpose of this study is to investigate the outcomes of fueling a diesel engine with biodiesel and recirculating the exhaust gases (EGR). The MRSO 30%'s destroyed energy and unaccounted losses fell by 6.72% and 2.33%, respectively, when compared to petroleum diesel. Diesel reduced the destroyed availability of MRSO 10%, 20%, and 30% by 66.67%, 66.93%, and 67.51%, respectively. In comparison to diesel, the exhaust gas availability and unexplained loss were decreased by 48.18% and 17.14%, respectively. The improvement in the trend towards diesel and MRSO 0%EGR was demonstrated by the availability of fuel with input energy of MRSO 10%, MRSO 20%, and MRSO 30%. Shaft availability and engine cooling water were improved for MRSO 30% with diesel under the same operating conditions by 32.41% and 5.84%, respectively. When compared to diesel for maximum load, the second law efficiency of MRSO 0%, MRSO 10%, MRSO 20%, and MRSO 30% was improved by 12%, 23.64%, 17.36%, and 6.32%, respectively. With high loads, the usage of EGR often results in an increase in BSCO, and BSHC emissions. It was discovered that the usage of 10% EGR was sufficient to reliably reduce BSCO, BSHC, and NOx emissions at low and moderate loads.
Energy, Exergy, Entropy, Emission Factors (4E's) and Sustainability Index analyses of thermal splintering waste paraffin Oil, di-ethyl ether − diesel blends R. Saravanan, P. Navaneetha Krishnan, M. Rengasamy, V. Manieniyan Ain Shams Engineering Journal, 2025 The study involves using thermal cracking techniques and enhancing fuel quality by incorporating di-ethyl ether, referred to as blended stock solution (BSS). In this work, an investigation was conducted on the Entropy, Energy, Emission Factors, Sustainability Index (SI) analyses, Exergy of BSS-diesel blends and the correlation between BSS-diesel blends and pure diesel. A single cylinder diesel engine running at speed of 1500 rpm was used for this experiment. The engine was tested with various blend ratios, including BSS20, BSS40, BSS60, BSS100, and pure diesel. The findings indicate that BSS60 has the best levels of exergy efficiency and energy, with a value of 30.35 % and 28.50 % respectively, surpassing other blends and pure diesel. The research findings suggest that BSS60 exhibited the lowest level of entropy formation compared to other fuel blends and pure diesel. The BSS60 exhibits the highest level of sustainability index. Emission factors of carbon monoxide (CO), demonstrate lower emission index (EI) and specific emissions (SE) as compared to both pure diesel and its blends. The emissions of NOx have shown a notable increase of 3.37 % in both the EI and SE when compared to pure diesel. The conclusions suggest the BSS60 exhibits superior performance and is suitable for use in direct-injection diesel engines.
Performance analysis of dual-fuel engines using acetylene and microalgae biodiesel: The role of fuel injection timing M. Sonachalam, R. Jayaprakash, V. Manieniyan, P.S. Raghavendra Rao, G. Vinodhini, Manish Sharma, Teku Kalyani, Mahammadsalman Warimani, Hasan Sh Majdi, T.M. Yunus Khan, Abdul Saddique Shaik, Keerthi Shetty Case Studies in Thermal Engineering, 2024 This study evaluates the impact of varying fuel injection timing (FIT) and dual-fuel modes on the performance and emissions of a compression ignition (CI) engine under different load conditions. The biodiesel used was derived from Chlorella protothecoides microalgae through a two-step transesterification process, and its elemental composition was characterized using gas chromatography-mass spectrometry (GC-MS). Acetylene gas was introduced into the engine intake manifold at a rate of 3 L per minute (LPM), while a blend of 20 % methyl ester from Chlorella protothecoides (B20 MEOA) served as the primary injected fuel. To predict engine performance and emission characteristics, advanced machine learning models were employed and evaluated using four statistical criteria, including R-squared, mean absolute error (MAE), and mean squared error (MSE). Experimental results indicated that the optimal configuration involved a dual-fuel mode combining B20 MEOA with acetylene gas and an advanced FIT of 25° before top dead center (bTDC). Performance analysis revealed that under all load conditions, the specific fuel consumption (SFC) decreased by 7.3 %, while brake thermal efficiency (BTE) increased by 1.6 % compared to conventional diesel. Emission testing showed a 7.6 % rise in nitrogen oxide emissions, alongside significant reductions in unburned hydrocarbons (12.5 %), carbon monoxide (25.6 %), and smoke intensity (7.5 %) relative to standard diesel operation. Optimization of the engine parameters ensured that key metrics, such as brake power (BP) and brake-specific fuel consumption (BSFC), remained within acceptable limits. The random forest model outperformed other machine learning models, demonstrating superior accuracy in predicting performance and emissions across all statistical measures. This study underscores the potential of combining advanced biodiesel blends with optimized FIT strategies to improve engine efficiency and emissions control, offering a promising approach for sustainable dual-fuel engine operations.
Optimization on manifold injection in DI diesel engine fuelled with acetylene M. Sonachalam, V. Manieniyan, R. Senthilkumar Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy, 2024 Researchers demonstrated that implementing new combustion technology and optimising fuel quantity results in a significant reduction in traditional fossil fuel usage and emission levels. The Reactivity Controlled Compression Ignition (RCCI) combustion strategy is one of the low temperature combustion technologies, and it is used to reduce the overall combustion temperature while also providing better combustion control. This study looks into RCCI combustion technology, which uses conventional diesel fuel as the high reactivity fuel (HRF) injected through the injector and acetylene gas as the low reactivity fuel (LRF) injected into the cylinder via a modified inlet manifold alongside air. The modified engine setup was tested for performance, emissions, and combustion under various load conditions, as well as different mass flow rates of acetylene gas, a low reactivity fuel that is injected with air. The flow field of the low reactivity fuel at the inlet manifold is analysed using the Computational Fluid Dynamics principle, which is used to determine the best flow rate for improving combustion quality. According to the simulation results, the optimal acetylene flow rate is 3 Litres Per Minute (LPM), and experimentation shows that at 3 LPM acetylene injection, the brake thermal efficiency (BTE) improves by about 3.2%, and emissions such as carbon monoxide (CO), hydrocarbon (HC), smoke intensity, and oxides of nitrogen (NOx) are reduced by about 35%, 17%, 10%, and 21%, respectively.
Experimental investigation of performance, emission, and combustion characteristics of a diesel engine using blends of waste cooking oil-ethanol biodiesel with MWCNT nanoparticles M. Sonachalam, V. Manieniyan, R. Senthilkumar, Ramis M K, Mahammadsalman Warimani, Raman Kumar, Ankit Kedia, T.M. Yunus Khan, Naif Almakayeel Case Studies in Thermal Engineering, 2024 In this study, blends of 5 % and 10 % ethanol with waste cooking oil biodiesel are mixed with Multi-Walled Carbon Nanotubes (MWCNT) at a concentration of 30 ppm. MWCNTs, known for their high surface area and unique properties, are added to potentially enhance combustion efficiency and reduce emissions. These blends are then tested in a diesel engine to evaluate their performance, emission and combustion characteristics using Design of experiment technique. After conducting various experiments and analyses, the blend of 20 % biodiesel, 10 % ethanol, and 30 ppm MWCNT was identified as the most optimal due to its favorable engine characteristics. Brake Thermal Efficiency (BTE) was increased from 3.1 % to 3.4 % with the addition of MWCNTs, indicating enhanced fuel efficiency. Moreover, average Fuel Consumption is decreased from 2.2 % to 2.5 %, suggesting improved fuel utilization. Using MWCNT 30 ppm in B20 ethanol blends (MWCNT 30 ppm B20+E10) resulted in 35 % reduction in nitrogen oxide (NOx) emissions, 37 % reduction in CO emissions and 39 % reduction in HC emissions. Hence MWCNTs demonstrated effectiveness in mitigating harmful exhaust emissions The optimized values for all parameters fall within acceptable ranges, indicated successful optimization using Response surface methodology. Additionally, statistical analysis reveals that the machine learning- XGBoost model outperformed all other advanced machine learning models across all tested metrics, including MSE, MAE, and R-square.
Bio diesel production from vegetable oil refinery industrial waste by transesterification process International Journal of Engineering and Advanced Technology, 2019
Effect of multi-walled carbon nanotubes in di diesel engine Arpn Journal of Engineering and Applied Sciences, 2019
Bio oil production from biomass using pyrolysis and upgrading - A review International Journal of Chemtech Research, 2015
Performance, combustion and emission analysis on a diesel engine fueled with methyl ester of neem and madhua oil International Journal of Chemtech Research, 2014
Performance, combustion and emission analysis on a diesel engine using three different bio-diesels 7th Asia Pacific Conference on Combustion Aspacc 2009, 2009
Optimization of reformed EGR assisted on board hydrogen enrichment in a diesel engine fuelled with diesel, algae biodiesel and butyl methyl ether M Sonachalam, SAI Bellary, SN Teli, WJ Yahya, V Manieniyan, ... International Journal of Hydrogen Energy 231, 154840 , 2026 2026
Energy, emission, exergy, entropy, and sustainability assessment of microalgae oil-hythane (H2-CNG) dual fuel operation in a CI engine M Sonachalam, WJ Yahya, M Warimani, V Manieniyan, SAI Bellary, ... International Journal of Hydrogen Energy 207, 153496 , 2026 2026
Comparative Analysis of Solar Water Heaters with Single and Double Passes B Suresh Kumar, P Gowtham, V Manieniyan Indian Journal of Natural Sciences 16 (94), 106690 -106694 , 2026 2026
BIODIESEL PRODUCTION FROM PALM STEARIN PROCESS OPTIMISATION USING RESPONSE SURFACE METHODOLOGY (RSM) P Gowtham, K Pitchandi, V Manieniyan Journal of Oil Palm Research 37 (3) , 2025 2025
Energy, exergy and environmental assessments of rubber seed oil methyl ester‐diesel blend for an agricultural diesel engine under the influence of exhaust gas recirculation S Murugapoopathi, V Manieniyan, C Rajaganapathy, R Sathiyamoorthi, ... Environmental Progress & Sustainable Energy 44 (5), e70011 , 2025 2025 Citations: 2
Performance, combustion and emissions characteristics of lanthanum zirconate coated DI engine fueled with nannochloropsis algae bio-diesel containing tin oxide nanoparticles B Mathivanan, B Kumaragurubaran, J Bensam Raj, M Veerasigamani Petroleum Science and Technology 43 (1), 77-92 , 2025 2025 Citations: 5
Energy, Exergy, Entropy, Emission Factors (4E’s) and Sustainability Index analyses of thermal splintering waste paraffin Oil, di-ethyl ether− diesel blends R Saravanan, PN Krishnan, M Rengasamy, V Manieniyan Ain Shams Engineering Journal 16 (1), 103190 , 2025 2025 Citations: 4
Impact of secondary fuel injector in various distance on direct injection diesel engine using acetylene-bio diesel in reactivity controlled compression ignition mode S Muthuswamy, M Veerasigamani Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 46 … , 2024 2024 Citations: 26
Effect of carbon nanotube material in diesel engine with exhaust gas recirculation V Veerabadran, M Veerasigamani, S Shanmugam Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 46 … , 2024 2024 Citations: 21
Performance analysis of dual-fuel engines using acetylene and microalgae biodiesel: The role of fuel injection timing M Sonachalam, R Jayaprakash, V Manieniyan, PSR Rao, G Vinodhini, ... Case Studies in Thermal Engineering 64, 105370 , 2024 2024 Citations: 10
Experimental investigation of performance, emission, and combustion characteristics of a diesel engine using blends of waste cooking oil-ethanol biodiesel with MWCNT nanoparticles M Sonachalam, V Manieniyan, R Senthilkumar, R MK, M Warimani, ... Case Studies in Thermal Engineering 61, 105094 , 2024 2024 Citations: 38
Effect of Multi-Cycle Combustion on Nox Emission Formation of Hydrogen Fuel in Pulse Detonation Engine M Warimani, SAI Bellary, MH Azami, SA Khan, S Muthuswamy, ... Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 120 (1 … , 2024 2024 Citations: 1
Impact of injection pressure on a dual-fuel engine using acetylene gas and microalgae blends of chlorella protothecoides M Sonachalam, R Jayaprakash, V Manieniyan, MS Murthy, MGM Johar, ... Case Studies in Thermal Engineering 60, 104653 , 2024 2024 Citations: 16
Optimization on manifold injection in DI diesel engine fuelled with acetylene M Sonachalam, V Manieniyan, R Senthilkumar Proceedings of the Institution of Mechanical Engineers, Part A: Journal of … , 2024 2024 Citations: 6
Optimization of Biodiesel Synthesis Parameters of Waste Cooking Oil Through Response Surface Methodology M Sonachalam, V Manieniyan, AK Sher, A Vilas, Pharande, ... Advances in Clean Energy and Sustainability 2, 453-463 , 2024 2024 Citations: 3
Impact on Emissions Combustion and Performance of Diesel Engine Using Blends of Di Ethyl Ether with Cracked Transformer Oil R Saravanan, P NavaneethaKrishnan, M Rengasamy, V Manieniyan 2023
An Impact of Methyl Esters of Algae biodiesel with Acetylene Used as Fuel in Diesel Engine M Thambidurai, V Sukumar, P Deivajothi, V Manieniyan Journal For Basic Sciences/Fangzhi Gaoxiao Jichukexue Xuebao 23 (4), 1428-1441 , 2023 2023
Numerical investigation of a dual fuel engine fueled by diesel-acetylene and biodiesel-acetylene with modified piston bowl geometry G Babusankar, V Manieniyan, S Sivaprakasam Arabian Journal for Science and Engineering 48 (3), 3783-3795 , 2023 2023 Citations: 8
Emission reduction using biodiesel blends with nano-additives and reformed exhaust gas recirculation (REGR) in DI diesel engine V Manieniyan, V Sukumar, R Senthilkumar, S Sivaprakasam International Journal of Ambient Energy 43 (1), 641-647 , 2022 2022 Citations: 23
Experimental Investigation on DI Diesel Engine using Acetylene Blends with Biodiesel R Jayaprakash, V Manieniyan, S Sivaprakasam Design Engineering 1, 2958 - 2966 , 2022 2022 Citations: 2
MOST CITED SCHOLAR PUBLICATIONS
Study on energy crisis and the future of fossil fuels V Manieniyan, M Thambidurai, R Selvakumar Proceedings of SHEE 10, 2234-3689 , 2009 2009 Citations: 77
Production of bio oil from sweet lime empty fruit bunch by pyrolysis V Sukumar, V Manieniyan, R Senthilkumar, S Sivaprakasam Renewable Energy 146, 309-315 , 2020 2020 Citations: 52
Experimental analysis of exhaust gas recirculation on DI diesel engine operating with biodiesel V Manieniyan, S Sivaprakasam International Journal of Engineering and Technology 3 (2), 129-135 , 2013 2013 Citations: 49
Emission reduction in diesel engine with acetylene gas and biodiesel using inlet manifold injection M Sonachalam, P PaulPandian, V Manieniyan Clean Technologies and Environmental Policy 22 (10), 2177-2191 , 2020 2020 Citations: 43
Bio oil Production from Biomass using Pyrolysis and Upgrading - A Review V Sukumar, V Manieniyan, S Sivaprakasam International Journal of ChemTech Research 8 (1), 196-206 , 2015 2015 Citations: 41
Investigation of Diesel Engine Using Bio-Diesel (Methyl Ester of Jatropha Oil) for Various Injection Timing and Injection Pressure V Manieniyan, S Sivaprakasam SAE Technical Paper, 01-1577 , 2008 2008 Citations: 41
Comparative Experimental Analysis on Dual Fuel with Biodiesel-Acetylene in Reactivity Controlled Compression Ignition Engine S Muthuswamy, M Veerasigamani International Journal of Ambient Energy, 1-20 , 2022 2022 Citations: 40
Wear element analysis using neural networks of a DI diesel engine using biodiesel with exhaust gas recirculation V Manieniyan, G Vinodhini, R Senthilkumar, S Sivaprakasam Energy 114, 603-612 , 2016 2016 Citations: 39
Experimental investigation of performance, emission, and combustion characteristics of a diesel engine using blends of waste cooking oil-ethanol biodiesel with MWCNT nanoparticles M Sonachalam, V Manieniyan, R Senthilkumar, R MK, M Warimani, ... Case Studies in Thermal Engineering 61, 105094 , 2024 2024 Citations: 38
Effect of EGR (exhaust gas recirculation) in diesel engine with multi-walled carbon nanotubes and vegetable oil refinery waste as biodiesel V Manieniyan, V Velumani, R Senthilkumar, S Sivaprakasam Fuel 288, 119689 , 2021 2021 Citations: 36
An impact of ethyl esters of groundnut acid oil (vegetable oil refinery waste) used as emerging fuel in DI diesel engine P Deivajothi, V Manieniyan, S Sivaprakasam Alexandria Engineering Journal 57 (4) , 2018 2018 Citations: 29
Experimental investigation on DI diesel engine with fatty acid oil from by-product of vegetable oil refinery P Deivajothi, V Manieniyan, S Sivaprakasam Ain Shams Engineering Journal 10 (1), 77-82 , 2019 2019 Citations: 27
Impact of secondary fuel injector in various distance on direct injection diesel engine using acetylene-bio diesel in reactivity controlled compression ignition mode S Muthuswamy, M Veerasigamani Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 46 … , 2024 2024 Citations: 26
Emission reduction using biodiesel blends with nano-additives and reformed exhaust gas recirculation (REGR) in DI diesel engine V Manieniyan, V Sukumar, R Senthilkumar, S Sivaprakasam International Journal of Ambient Energy 43 (1), 641-647 , 2022 2022 Citations: 23
Effect of carbon nanotube material in diesel engine with exhaust gas recirculation V Veerabadran, M Veerasigamani, S Shanmugam Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 46 … , 2024 2024 Citations: 21
Optimization of critical angle, distance and flow rate of secondary fuel injection in DI diesel engine using computational fluid dynamics M Sonachalam, V Manieniyan SN Applied Sciences 3 (1), 126 , 2021 2021 Citations: 18
Impact of injection pressure on a dual-fuel engine using acetylene gas and microalgae blends of chlorella protothecoides M Sonachalam, R Jayaprakash, V Manieniyan, MS Murthy, MGM Johar, ... Case Studies in Thermal Engineering 60, 104653 , 2024 2024 Citations: 16
Experimental Studies on DI Diesel Engine Fueled in Sweet Lime Pyrolysis Oil with Biodiesel V Sukumar, V Manieniyan, S Sivaprakasam International Journal of Applied Engineering Research 14 (5), 1145-1150 , 2019 2019 Citations: 14
Vibration Analysis in DI Diesel Engine Using Diesel and Biodiesel V Manieniyan, S Sivaprakasam International Journal of Engineering Trends and Technology (IJETT) 4 (8 … , 2013 2013 Citations: 14
Performance, combustion and emission evaluation in DI diesel engine using diesel and biodiesel V Maniniyan, S Sivaprakasam Elixir Mech. Engg. 52, 11305-11308 , 2012 2012 Citations: 14
