Experimental investigation of cyclic variation of heat release dynamics of HCCI combustion engine Indian Institute of Technology Ropar

Format:

Book

Conference/Event

Author/Creator:

Singh, Ajay, author.

Contributor:

Maurya, Rakesh Kumar

Conference Name:

SAE Powertrains, Fuels & Lubricants Digital Summit (2021-09-28 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Homogenous charge compression ignition (HCCI) combustion emerged as a promising technology for automotive pollution reduction. One of the major challenges for commercial application of HCCI combustion engine is to control the combustion in different engine operating conditions. To control HCCI ignition timing, it is often necessary to know the characteristics of HCCI cyclic variations. In this study, cyclic combustion variations in an HCCI engine are analyzed. Combustion stability and cycle-to-cycle variations of HCCI combustion parameters were investigated on a modified four-cylinder, four-stroke engine. The experiments were conducted by varying intake air temperatures and relative air-fuel ratios at different engine speeds. In the steady-state condition engine operation, in-cylinder pressure signals of 2000 consecutive engine combustion cycles are acquired for each test condition. From this large volume of experimental data collected, cyclic variations of various combustion parameters were analyzed. In this investigation cycle based time series analysis of heat release is analyzed by constructing a recurrence plot for different air-fuel ratios and intake air temperatures. In this study, probability plots are used to investigate the distribution of combustion parameters. The results show that the qualitative change in combustion can be easily related to patterns in recurrence plots

Notes:

Vendor supplied data

Publisher Number:

2021-01-1170

Access Restriction:

Restricted for use by site license