eprintid: 17161
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/71/61
datestamp: 2023-12-19 03:23:36
lastmod: 2023-12-19 03:23:36
status_changed: 2023-12-19 03:07:34
type: article
metadata_visibility: show
creators_name: Said, M.A.
creators_name: Dalha, I.B.
creators_name: Abdul Karim, Z.A.
creators_name: El-Adawy, M.
title: Influence of biogas mixing parameters on the combustion and emission characteristics of diesel RCCI engine
ispublished: pub
keywords: Biogas; Blending; Carbon monoxide; Diesel engines; Economic and social effects; Mixtures; Nitrogen oxides; Particulate emissions; Reaction rates, Biogas injection pressure; Compression ignition; Emission trade-off; Low load; Port mixing distance; Port swirl ratio; Reactivity-controled compression ignition combustion; Swirl ratio; Trade off; Unburned hydrocarbons, Ignition
note: cited By 10
abstract: Reactivity-controlled compression ignition (RCCI) combustion involves in-cylinder fuels blending of varying reaction rates to enhance the combustion magnitude by stratification. Nitrogen oxides (NOx) and soot control techniques increase carbon monoxide (CO) and unburned-hydrocarbon (UHC) emissions in RCCI at low loads. A modified injection and proper Biogas mixing may reduce further CO, UHC, and trade-off with other emissions. The effects of loads (5.5 and 6.5 bar IMEP), port mixing distances (0�100), swirl ratios (0�80), and biogas pressures (1�4 bar) on the mixture distribution and emissions were evaluated experimentally, at 1600 rpm. Exergy analysis and combustion kinetics were applied for more understanding of emissions attributes. The process at 5.5 bar IMEP improves mixture homogeneity, uniform fuel stratification and reduces emissions across the mixing intervals. Injection at valve reduces CO, UHC, and NOx emissions by 11.54, 9.38, and 33.75 at 5.5 bar IMEP. Operating at the valve, 80 swirl ratio and 1 bar pressure further reduce the UHC (115.77 ppm), NOx (3.89 ppm), and PM (5.29 ppm) emissions by 1.94, 49.94, and 77.42, than normal airflow. Thus, injecting biogas of low pressure at the valve amidst a stream of swirling air contributes to trade-off reduction techniques at low load. © 2021 THE AUTHORS
date: 2022
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85108781189&doi=10.1016%2fj.aej.2021.06.052&partnerID=40&md5=43220694cfa7d30b4e9ef9ea565857fb
id_number: 10.1016/j.aej.2021.06.052
full_text_status: none
publication: Alexandria Engineering Journal
volume: 61
number: 2
pagerange: 1479-1497
refereed: TRUE
issn: 11100168
citation:   Said, M.A. and Dalha, I.B. and Abdul Karim, Z.A. and El-Adawy, M.  (2022) Influence of biogas mixing parameters on the combustion and emission characteristics of diesel RCCI engine.  Alexandria Engineering Journal, 61 (2).  pp. 1479-1497.  ISSN 11100168