Valorization of Invasive Kans Grass for Fabrication of PVA-Reinforced Multifunctional Cellulose Nanofibril-Based Composite Aerogels for Advanced Insulation and Fire Safety Pragnan Saha, Shakshi Bhardwaj, Keshav Dev, Subrata Kumar Ghosh, Paramvir Singh, Pradip K. Maji ACS Sustainable Resource Management, 2026 The valorization of abundant lignocellulosic waste, such as invasive Kans grass (Saccharum spontaneum), into high-value, sustainable materials is a critical pursuit for a circular economy. This study reports the fabrication and comprehensive characterization of multifunctional cellulose nanofibril composite aerogels derived from this biomass and prepared via freeze-drying. The aerogels were modified with poly(vinyl alcohol) for mechanical reinforcement, hexadecyltrimethoxysilane for hydrophobicity, and varying concentrations of phytic acid (0–3 wt %) to impart flame retardancy. The resulting composites were comprehensively evaluated for a suite of functional properties, including their physicochemical, morphological, mechanical, thermal, acoustic, and hydrophobic characteristics. The aerogels exhibited low densities (0.0606–0.0738 g/cm3), high porosities (>93%), and excellent thermal insulation, with thermal conductivity ranging from 28.05 to 38.2 mW/(m·K). Incorporation of phytic acid, particularly at 1–2 wt %, significantly enhanced compressive strength (up to 0.928 MPa at 70% strain). It also imparted self-extinguishing behavior, withstanding 30 s of direct flame exposure, achieving a limiting oxygen index of up to 30.4%, and maintaining stable water contact angles of up to 121° over time. These findings highlight a robust strategy for engineering multifunctional aerogels from invasive biomass with potential applications in thermal/acoustic insulation and fire safety.
Environmental sustainability, entropy generation, energy and exergy analysis of sanitary waste syngas-diesel blends in RCCI combustion mode Akash Paul, Vishal Patil, Paramvir Singh, Rajsekhar Panua, Sudarshan Kumar Environmental Progress and Sustainable Energy, 2026 This study addresses the dual challenge of waste management and sustainable energy by investigating the utilization of sanitary‐waste‐derived syngas in a dual‐fuel Reactivity‐Controlled Compression Ignition (RCCI) engine. Sanitary waste, co‐gasified with CO2, produces hydrogen‐rich syngas, offering a novel route for both waste valorization and partial diesel displacement. The engine was operated under varying load conditions using different diesel‐syngas injection strategies (DS2–DS10), with syngas port‐injected and diesel directly injected. A combined energy and exergy analysis was performed to evaluate combustion behavior, emission characteristics, entropy generation, and the sustainability index. The results revealed that the DS2 blend (2 ms syngas injection) delivered the most balanced performance, achieving only a 4.1% reduction in exergy efficiency compared to diesel while limiting exergy destruction and entropy generation. Higher syngas fractions such as DS10 degraded performance, leading to an 18.45% drop in exergy efficiency and a 36.26% increase in entropy generation. Compared to diesel, DS2 showed minor losses in BTE (4.68%) and exhaust energy (3.72%) but enabled a net improvement in environmental sustainability metrics. The novelty of this work lies in demonstrating the viability of sanitary‐waste syngas as a co‐fuel in RCCI mode, supported by integrated thermodynamic and sustainability assessments, extending beyond conventional biomass syngas applications by addressing the energy‐exergy trade‐offs of hydrogen‐rich waste‐derived fuels.
A review on advancement in strategies for low-NOx hydrogen combustion with micromix technology Sushant K. Bawne, Prasun Chakraborti, Paramvir Singh Aeronautical Journal, 2025 Micromix combustion technology emerges as a promising solution to address challenges in achieving clean combustion, particularly for hydrogen utilisation. This review provides a critical analysis for the potential of micromixing by delving into its core principles, diverse applications and the factors influencing its performance. The paper focuses on injector design, flame stabilisation and NOx mitigation strategies within the micromixing framework. Key findings include innovative burner designs, optimised air distribution techniques and the crucial role of fuel properties, especially for hydrogen combustion. The review highlights significant reductions in NOx emissions achieved through micromix combustion technology. For instance, NOx emissions were lowered to 2.2 ppm at φ = 0.4, representing a 45% improvement compared to conventional design configurations. Furthermore, a reduction of 40% in NOx emissions compared to standard configurations was observed at an equivalence ratio of 0.65. The study also compares NOx emissions between hydrogen and its blended fuels, showing lower emissions for methane. By highlighting the importance of optimising fuel mixture formation and flame stability for various operating conditions, this review underscores the significance of micromix combustion for advancing sustainable combustion technologies with low NOx emissions and reduced chance of flashback in hydrogen combustion.
Modeling and Electrification of a Wave Energy Converter Under Irregular Sea States Padmagirisan Paramasivam, Bineeta Biswas, Shailendra Singh, Arvind Kumar Jain, Bikram Das, Paramvir Singh, Suman Murugesan Proceedings of 2025 International Conference on Signal Processing Computation Electronics Power and Telecommunication Iconscept 2025, 2025
Unregulated emissions from oxygenated fuels Paramvir Singh, Saurabh Sharma, Vamsi Krishna Undavalli, Bhupendra Khandelwal, Sudarshan Kumar Advancement in Oxygenated Fuels for Sustainable Development Feedstocks and Precursors for Catalysts Synthesis, 2022
Potential of optimal aromatic blended fuel in combustion engines for future fuel transformation Advances in Multiphase Flows, 2022
Water footprints of hydropower projects Himanshu Nautiyal, Varun Goel, Paramvir Singh Environmental Footprints and Eco Design of Products and Processes, 2019
Life cycle assessment of an academic building Himanshu Nautiyal, Venu Shree, Paramvir Singh, Sourabh Khurana, Varun Goel Environmental Carbon Footprints Industrial Case Studies, 2017
Thermodynamic investigation of hydrogen-enriched diesel dual-fuel CI engine through first and second law analysis SK Bawne, V Patil, P Singh, S Kumar International Journal of Hydrogen Energy 227, 154561 , 2026 2026 Citations: 1
Synergistic production of biofuels and chemicals through CO 2 -assisted co-gasification: a technological review A Paul, P Singh, R Panua Biomass Conversion and Biorefinery 16 (3), 94 , 2026 2026
Thermodynamic and sustainability analysis of sanitary waste derived syngas-hydrogen blends with diesel in a RCCI engine A Paul, V Patil, P Singh, R Panua, S Kumar International Journal of Hydrogen Energy 198, 152725 , 2026 2026 Citations: 3
Experimental and Numerical Analysis of Laminar Burning Velocity for Gasoline, Ammonia, and Hydrogen Blends A Nair, S Shawnam, P Singh, V Sharma, A Panesar, S Kumar Journal of the Energy Institute, 102442 , 2026 2026
ECONOMIC AND ENVIRONMENTAL ANALYSIS OF TRANSITIONING LIGHT-DUTY VEHICLES TO FUEL CELL ELECTRIC TECHNOLOGY: A CASE STUDY M Jahami, P Singh, B Khandelwal International Journal of Energy for a Clean Environment 27 (1) , 2026 2026
Valorization of Invasive Kans Grass for Fabrication of PVA-Reinforced Multifunctional Cellulose Nanofibril-Based Composite Aerogels for Advanced Insulation and Fire Safety P Saha, S Bhardwaj, K Dev, SK Ghosh, P Singh, PK Maji ACS Sustainable Resource Management 3 (1), 268-282 , 2025 2025
Advancing aviation sustainability by 2050: Scaling renewable energy systems for hydrogen production and E-fuel integration M Jahami, P Singh, B Khandelwal Progress in Aerospace Sciences, 101170 , 2025 2025 Citations: 3
Evaluating the Environmental and Policy Impacts of Gasoline and Hybrid Vehicles: A Review of California’s Journey to Sustainable Zero-Emission Transportation M Jahami, P Singh, B Khandelwal Recent Developments in Power and Propulsion Applications, 119-144 , 2025 2025 Citations: 1
A Review of California's Journey M Jahami, P Singh, B Khandelwal Recent Developments in Power and Propulsion Applications, 119 , 2025 2025 Citations: 1
Environmental sustainability, entropy generation, energy and exergy analysis of sanitary waste syngas‐diesel blends in RCCI combustion mode A Paul, V Patil, P Singh, R Panua, S Kumar Environmental Progress & Sustainable Energy, e70116 , 2025 2025 Citations: 2
Future of internal combustion engines using sustainable, scalable, and storable E-fuels and biofuels for decarbonizing transport and enabling advanced combustion technologies AK Agarwal, C Mounaïm-Rousselle, P Brequigny, A Dhar, C Hespel, ... Progress in Energy and Combustion Science 110, 101236 , 2025 2025 Citations: 36
Introduction to Sustainable, Scalable, and Storable E-Fuels for Decarbonizing Transport Sector N Sharma, C Hespel, S Panigrahy, P Singh, AK Agarwal Sustainable, Scalable and Storable E-Fuels for Decarbonising Transport … , 2025 2025
Sustainable, Scalable and Storable E-Fuels for Decarbonising Transport Sector N Sharma, C Hespel, S Panigrahy, P Singh, AK Agarwal Springer Nature , 2025 2025
Role of Ammonia as a Sustainable Fuel: Production Methods, Properties, Safety, and Applications in Fuel Cells and IC Engines A Debnath, KK Pandey, P Singh, S Kumar Sustainable, Scalable and Storable E-Fuels for Decarbonising Transport … , 2025 2025 Citations: 1
A holistic review on synthesis, properties, and multifunctional applications of cellulose aerogels from cellulose waste streams P Saha, SK Ghosh, P Singh International Journal of Biological Macromolecules, 146334 , 2025 2025 Citations: 5
A review on advancement in strategies for low-NOx hydrogen combustion with micromix technology SK Bawne, P Chakraborti, P Singh The Aeronautical Journal, 1-53 , 2025 2025 Citations: 5
Applicability of furan-gasoline blends with energy, exergy, sustainability, and entropy generation analysis for SI engines J Paparao, P Singh, V Patil, B Khandelwal, S Kumar Energy 327, 136345 , 2025 2025 Citations: 7
Energy-exergy and exergoeconomic analysis of a hydrogen-enriched spark-ignition engine fueled with premium gasoline-ethanol blends S Kumbhar, S Khot, U Bhapkar, V Patil, P Singh, A Husainy International Journal of Hydrogen Energy 137, 689-709 , 2025 2025 Citations: 10
A review of recent advances in hydrogen fueled Wankel engines for clean energy transition and sustainable mobility P Singh, J Paparao, P Singh, N Kumbhakarna, S Kumar Fuel 387, 134334 , 2025 2025 Citations: 15
Optimizing hydrogen-rich syngas production from sanitary waste via CO 2 gasification and pyrolysis A Paul, P Singh, R Panua Biomass Conversion and Biorefinery 15 (10), 15695-15711 , 2025 2025 Citations: 5
MOST CITED SCHOLAR PUBLICATIONS
Effects of VOCs on human health V Soni, P Singh, V Shree, V Goel Air pollution and control, 119-142 , 2018 2018 Citations: 284
Syngas production from co-pyrolysis and co-gasification of polystyrene and paper with CO2 N Déparrois, P Singh, KG Burra, AK Gupta Applied Energy 246, 1-10 , 2019 2019 Citations: 136
Performance evaluation and optimization of solar assisted air heater with discrete multiple arc shaped ribs R Kumar, V Goel, P Singh, A Saxena, AS Kashyap, A Rai Journal of Energy Storage 26, 100978 , 2019 2019 Citations: 126
Energy recovery from cross-linked polyethylene wastes using pyrolysis and CO2 assisted gasification P Singh, N Déparrois, KG Burra, S Bhattacharya, AK Gupta Applied Energy 254, 113722 , 2019 2019 Citations: 111
Modification in combustion chamber geometry of CI engines for suitability of biodiesel: A review P Singh, SK Tiwari, R Singh, N Kumar Renewable and Sustainable Energy Reviews 79, 1016-1033 , 2017 2017 Citations: 92
A holistic review of the current state of research on aircraft design concepts and consideration for advanced air mobility applications L Kiesewetter, KH Shakib, P Singh, M Rahman, B Khandelwal, S Kumar, ... Progress in Aerospace Sciences 142, 100949 , 2023 2023 Citations: 88
Assessment of diesel engine combustion, performance and emission characteristics fuelled with dual fuel blends P Singh, SR Chauhan, V Goel Renewable energy 125, 501-510 , 2018 2018 Citations: 73
A review on methodology for complete elimination of diesel from CI engines using mixed feedstock P Singh, SR Chauhan, N Kumar Renewable and Sustainable Energy Reviews 57, 1110-1125 , 2016 2016 Citations: 63
A review on methodology for complete elimination of diesel from CI engines using mixed feedstock P Singh, SR Chauhan, N Kumar Renewable and Sustainable Energy Reviews 57, 1110-1125 , 2016 2016 Citations: 63
Enhancing diesel engine performance and reducing emissions using binary biodiesel fuel blend P Singh, SR Chauhan, V Goel, AK Gupta Journal of Energy Resources Technology 142 (1), 012201 , 2020 2020 Citations: 60
Numerical investigation of heat transfer and friction factor in ribbed triangular duct solar air heater using computational fluid dynamics (CFD) R Kumar, V Goel, A Kumar, S Khurana, P Singh, SB Bopche Journal of Mechanical Science and Technology 32 (1), 399-404 , 2018 2018 Citations: 59
Carbonyl and aromatic hydrocarbon emissions from diesel engine exhaust using different feedstock: a review P Singh, SR Chauhan Renewable and Sustainable Energy Reviews 63, 269-291 , 2016 2016 Citations: 58
Solar air heater having multiple V-ribs with multiple-symmetric gaps as roughness elements on absorber-plate: a parametric study AS Kashyap, R Kumar, P Singh, V Goel Sustainable Energy Technologies and Assessments 48, 101559 , 2021 2021 Citations: 56
Optimization of wear and friction characteristics of Phyllanthus Emblica seed oil based lubricant using response surface methodology Y Singh, P Singh, A Sharma, P Choudhary, A Singla, NK Singh Egyptian journal of petroleum 27 (4), 1145-1155 , 2018 2018 Citations: 51
Impact of modified parameters on diesel engine characteristics using biodiesel: A review V Goel, N Kumar, P Singh Renewable and Sustainable Energy Reviews 82, 2716-2729 , 2018 2018 Citations: 42
Applicability of ketone-gasoline blended fuels for spark ignition engine through energy-exergy analyses V Patil, P Singh, S Sonage, N Kumbhakarna, S Kumar Fuel 339, 127416 , 2023 2023 Citations: 40
Impact of dual biofuel approach on engine oil dilution in CI engines P Singh, V Goel, SR Chauhan Fuel 207, 680-689 , 2017 2017 Citations: 38
Abatement of formaldehyde with photocatalytic and catalytic oxidation: A review V Soni, V Goel, P Singh, A Garg International Journal of Chemical Reactor Engineering 19 (1), 1-29 , 2021 2021 Citations: 37
Future of internal combustion engines using sustainable, scalable, and storable E-fuels and biofuels for decarbonizing transport and enabling advanced combustion technologies AK Agarwal, C Mounaïm-Rousselle, P Brequigny, A Dhar, C Hespel, ... Progress in Energy and Combustion Science 110, 101236 , 2025 2025 Citations: 36
Reliability of renewable oxygenated fuels in engines: A comprehensive review of long-term testing V Patil, P Singh, S Kumar Fuel 367, 131451 , 2024 2024 Citations: 31