Hydrogen, Energy & Combustion Systems Laboratory
HECS IITG School of Energy Science and Engineering
Indian Institute of Technology Guwahati ↗
Indian Institute of Technology Guwahati
HECS IITG

Proposed HECS projects

Research directions in hydrogen safety, alternative fuels and ignition at IIT Guwahati.

Direction 01

Hydrogen release regimes and safety

Momentum Ri ≪ 1 Buoyancy Ri ≫ 1 Crosswind u∞ / ujet
Where the cloud ends up depends on which regime governs, and the transition between them is the part a model has to get right.

Validated CFD/experiments for buoyancy-, momentum- and wind-dominated hydrogen releases.

Student project: Hydrogen leak dispersion →
Direction 02

Methanol, ammonia and natural gas

t = 0 NH₃0.07 m/s NH₃+H₂blend H₂2.3 m/s front position after equal elapsed time
Ammonia and hydrogen flame speeds sit roughly thirty times apart, so the hydrogen fraction, not the fuel label, sets the operating window.

Ignition, stability and emissions across the low-carbon fuels, with hydrogen as the promoter that makes the slow ones usable.

Student project: Ammonia–hydrogen combustion →
Direction 03

Hydrogen direct injection and advanced ignition

Spark at electrodes Multi-point two kernels Pre-chamber distributed jets
The three concepts differ in where the first kernel forms, and that placement is what sets how lean or how dilute the charge can be.

Spark, multi-point and pre-chamber concepts, and how they interact with hydrogen direct injection, alternative fuels and sprays.

Student project: Advanced ignition →