Abstract
This study presents in-cylinder heat transfer characteristics of a single cylinder port injection Hydrogen fueled Internal Combustion Engine (H2ICE) using a steady state approach. Problem statement: The differences in characteristics between hydrogen and hydrocarbon fuels are led to the difference in the behavior of physical processes during engine cycle. One of these processes is the in-cylinder heat transfer. Approach: One dimensional gas dynamic model was used to describe the heat transfer characteristics of the engine. The engine speed was varied from 2000-5000 rpm, crank angle from -40° to +100°, while Air-Fuel Ratio (AFR) was changed from stoichiometric to lean limit. Results: The simulated results showed higher heat transfer rate but lower heat transfer to total fuel energy ratio with increasing the engine speed. The in-cylinder pressure and temperature were increased with decreasing AFR and increasing engine speed. The in-cylinder air flow rate was increased linearly with increasing engine speed as well as air fuel ratio. Conclusion/Recommendations: The results showed that the AFR has a vital effect on characteristics variation while the engine speed has minor effect. These results can be utilized for the study of combustion process, fuel consumption, emission production and engine performance.
Highlights
Hydrogen, as an alternative fuel, has the unique properties which provides a significant advantages over other types of fuel
The objective of this study is to investigate the variation of in-cylinder heat transfer characteristics of port injection hydrogen fueled internal combustion engine by utilizing steady state method
It was found that the effect of engine speed and Air-Fuel Ratio (AFR) on pressure and temperature has a direct impact on engine performance
Summary
As an alternative fuel, has the unique properties which provides a significant advantages over other types of fuel. Hydrogen engine is being developed into a hydrogen fueled engine with different types of fuel supply method (Kahraman et al, 2007; Rahman et al, 2009a; Bakar et al, 2009). It is suitable for fueling internal combustion engines (Yusaf et al, 2005). Now-a-day, computational fluid dynamics codes are used to simulate the engine performance and visualize the flow characteristics (Bahram et al, 1994) Application of these codes for engine improvement have saved significant time and cost in the design and development stage of combustion engine system (Shojaeefard and Noorpoor, 2008). Computational modeling and analysis of in-cylinder gas flow is a major part of successful combustion, emission production and engine
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
