Impact of EGR and engine speed on HCCI engine performance and tail pipe emissions. (October 2017)

• Record Type: Journal Article
• Authors: Hassan, A.O.; Abu-jrai, Ahmad; Al-Muhatseb, Ala'a H.; Jamil, Farrukh
• Is Part Of: Energy procedia. Volume 136(2017)
• Page Start: 208
• Page End: 212
• Publication Date: 2017-10
• Subjects: Biodiesel -- fuel -- green catalyst -- Phoenix dactylifera kernael oil; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.10.321
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Increasing air-to-fuel ratio has been considered as one of the advantages of HCCI combustion. A diluted in-cylinder mixture leads to lower temperatures and therefore lower NOx emissions. This improvement is due to a higher trapped residual rate in the cylinder when higher lambda is set. Higher lambda means more air therefore more trapped residual is required to deliver enough energy for auto-ignition. Analysis show that HC, CO in HCCI mode are heavily dependent on engine speed. HC emission was influenced by engine speed more than CO and NOx emissions.