Effect of hydrogen flow rates on the performance of two biodiesels fuelled dual fuel engine

In the present research work, effect of hydrogen (H2) flow rate, on the performance of modified dual fuel (DF) engine powered with two biodiesels is studied. Biodiesels derived from Jack fruit seed (JKFSDOB) and Nigella Sativa oils (NLSTVAOB) and their B20 blends are used as pilot injected fuels while H2 is used as the manifold inducted fuel in the modified DF engine. Further influence of H2 gas flow rate on the modified DF engine by using conventional mechanical fuel injection (CMFIS) for optimal performance of engine is investigated. Increasing the hydrogen gas flow rates reduces brake thermal efficiency (BTE), smoke, CO (Carbon monoxide) and HC (Hydrocarbon) emissions while NOx (Nitric oxide) emissions from DF engine increased. The engine operated by renewable fuel combinations of biodiesels and H2 in DF mode engine can facilitate partial as well as complete substitution for fossil fuels and reduce the greenhouse gas emissions. (c) 2021 Elsevier Ltd. All rights reserved. Selection and Peer-review under responsibility of the scientific committee of the Global Conference on Recent Advances in Sustainable Materials 2021.

Automated summary

This research investigates the effect of hydrogen flow rate on the performance of a dual fuel engine. The study finds that increasing the hydrogen flow rate reduces emissions but decreases the brake thermal efficiency of the engine.