Research output

Publications

Journal articles, conference papers, books, chapters, patents, and theses.

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Search titles, authors, journals or topics. Hydrogen / H₂ and natural gas / CNG are matched together.

30 entries

Refereed international journals

Numerical modeling of macroscopic and dynamic jet characteristics of low-carbon fuels: H₂, CNG, and blends in DISI engine-like conditions
Q Pham, D Kumar, A K Agarwal, S Park · Fuel · 2026
Laser ignition versus conventional spark ignition for hydrogen-enriched natural gas–air mixtures in a constant volume combustion chamber
D Kumar, A K Agarwal · Applied Thermal Engineering · 2024
Effects of initial chamber pressure, temperature and mixture strength on combustion and flame kernel propagation in H₂ and natural gas–air mixtures
D Kumar, A K Agarwal · Energy Conversion and Management · 2024
Macroscopic jet characteristics of hydrogen and natural gas in direct injection spark ignition engine-like conditions
D Kumar, P Pradeep, A K Agarwal · Int. Journal of Hydrogen Energy · 2024
Macroscopic spray characteristics of gasoline, methanol, and ethanol in DISI engine-like conditions
D Kumar, A K Agarwal · Atomization and Sprays · 2023
The future of ship engines: renewable fuels and enabling technologies for decarbonisation
S Curran, … D Kumar, et al. · Int. Journal of Engine Research · 2023
Evaluating the effect of variable methanol injection timings in a novel co-axial fuel injection system equipped locomotive engine
H Valera, D Kumar, A K Agarwal · Journal of Cleaner Production · 2022
Experimental investigations of methanol fumigation via port fuel injection in a single cylinder dual-fuel diesel engine
D Kumar, U Sonawane, K Chandra, A K Agarwal · Fuel · 2022
Simulations of methanol-fueled locomotive engines using a high-pressure co-axial direct injection system
D Kumar, H Valera, A Gautam, A K Agarwal · Fuel · 2021
Particulate characteristics of laser ignited hydrogen-enriched compressed natural gas engine
A P Singh, D Kumar, A K Agarwal · Int. Journal of Hydrogen Energy · 2020

Patents

High-pressure coaxial direct injection system for an internal combustion engine
A K Agarwal, H Valera, D Kumar · Indian Patent 589697, App. 202411037969 · granted 2026
A supplementary fuel intake assembly for an engine
A K Agarwal, D Kumar, U Sonawane · Indian Patent (under review) App. 202411037965 · filed 14-05-2024

International conference publications

Experimental assessment of spray characteristics of hydrogen and CNG using Schlieren imaging
D Kumar, A K Agarwal · SET-2023, University of Nottingham, UK · 2023
Comparative assessment of macroscopic spray characteristics of gasoline, methanol, and ethanol in SI engine-like conditions
D Kumar, A K Agarwal · ILASS Asia-2022, IIT Indore · 2022
Numerical predictions of in-cylinder phenomena in methanol-fueled locomotive engine using high-pressure DI technique
D Kumar, H Valera, A K Agarwal · SAE Technical Paper · 2021
Feasibility assessment of methanol fueling in two-wheeler engine using 1-D simulations
H Valera, D Kumar, A K Agarwal · SAE Technical Paper 2021-01-0382 · 2021
1-D modelling and simulation of 4-cylinder 4-stroke SI engine using GT-Power
D Kumar, A K Agarwal · 3rd ISEES International Conference on Sustainable Energy and Environmental Challenges · 2018

Theses

Spray, laser ignition, combustion and engine investigations of low carbon fuels
D Kumar · PhD thesis, Indian Institute of Technology Kanpur · 2024
Simulation of high-pressure co-axial injection system for methanol adaptation in a locomotive engine
D Kumar · M.Tech thesis, Indian Institute of Technology Kanpur · 2021