Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine
Presented in this paper is an in-depth analysis of the impact of engine start during various stages of engine warm up (cold, intermediate, and hot start stages) on the performance and emissions of a heavy-duty diesel engine. The experiments were performed at constant engine speeds of 1500 and 2000 r...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-05-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/11/3839 |
| _version_ | 1797566531166535680 |
|---|---|
| author | Faisal Lodi Ali Zare Priyanka Arora Svetlana Stevanovic Mohammad Jafari Zoran Ristovski Richard J. Brown Timothy Bodisco |
| author_facet | Faisal Lodi Ali Zare Priyanka Arora Svetlana Stevanovic Mohammad Jafari Zoran Ristovski Richard J. Brown Timothy Bodisco |
| author_sort | Faisal Lodi |
| collection | DOAJ |
| description | Presented in this paper is an in-depth analysis of the impact of engine start during various stages of engine warm up (cold, intermediate, and hot start stages) on the performance and emissions of a heavy-duty diesel engine. The experiments were performed at constant engine speeds of 1500 and 2000 rpm on a custom designed drive cycle. The intermediate start stage was found to be longer than the cold start stage. The oil warm up lagged the coolant warm up by approximately 10 °C. During the cold start stage, as the coolant temperature increased from ~25 to 60 °C, the brake specific fuel consumption (BSFC) decreased by approximately 2% to 10%. In the intermediate start stage, as the coolant temperature reached 70 °C and the injection retarded, the indicated mean effective pressure (IMEP) and the brake mean effective pressure (BMEP) decreased by approximately 2% to 3%, while the friction mean effective pressure (FMEP) decreased by approximately 60%. In this stage, the NOx emissions decreased by approximately 25% to 45%, while the HC emissions increased by approximately 12% to 18%. The normalised FMEP showed that higher energy losses at lower loads were most likely contributing to the heating of the lubricating oil. |
| first_indexed | 2024-03-10T19:28:09Z |
| format | Article |
| id | doaj.art-d85b861d8575400bb62ab4a7c8eed268 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T19:28:09Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-d85b861d8575400bb62ab4a7c8eed2682023-11-20T02:22:57ZengMDPI AGApplied Sciences2076-34172020-05-011011383910.3390/app10113839Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel EngineFaisal Lodi0Ali Zare1Priyanka Arora2Svetlana Stevanovic3Mohammad Jafari4Zoran Ristovski5Richard J. Brown6Timothy Bodisco7School of Engineering, Deakin University, 75 Pigdons Rd, Geelong 3216, AustraliaSchool of Engineering, Deakin University, 75 Pigdons Rd, Geelong 3216, AustraliaInternational Laboratory for Air Quality and Health (ILAQH), Queensland University of Technology, 2 George St, Brisbane 4000, AustraliaSchool of Engineering, Deakin University, 75 Pigdons Rd, Geelong 3216, AustraliaInternational Laboratory for Air Quality and Health (ILAQH), Queensland University of Technology, 2 George St, Brisbane 4000, AustraliaInternational Laboratory for Air Quality and Health (ILAQH), Queensland University of Technology, 2 George St, Brisbane 4000, AustraliaBiofuel Engine Research Facility, Queensland University of Technology, 2 George St, Brisbane 4000, AustraliaSchool of Engineering, Deakin University, 75 Pigdons Rd, Geelong 3216, AustraliaPresented in this paper is an in-depth analysis of the impact of engine start during various stages of engine warm up (cold, intermediate, and hot start stages) on the performance and emissions of a heavy-duty diesel engine. The experiments were performed at constant engine speeds of 1500 and 2000 rpm on a custom designed drive cycle. The intermediate start stage was found to be longer than the cold start stage. The oil warm up lagged the coolant warm up by approximately 10 °C. During the cold start stage, as the coolant temperature increased from ~25 to 60 °C, the brake specific fuel consumption (BSFC) decreased by approximately 2% to 10%. In the intermediate start stage, as the coolant temperature reached 70 °C and the injection retarded, the indicated mean effective pressure (IMEP) and the brake mean effective pressure (BMEP) decreased by approximately 2% to 3%, while the friction mean effective pressure (FMEP) decreased by approximately 60%. In this stage, the NOx emissions decreased by approximately 25% to 45%, while the HC emissions increased by approximately 12% to 18%. The normalised FMEP showed that higher energy losses at lower loads were most likely contributing to the heating of the lubricating oil.https://www.mdpi.com/2076-3417/10/11/3839diesel engine cold startintermediate startengine stop/startengine performanceIMEPBMEP |
| spellingShingle | Faisal Lodi Ali Zare Priyanka Arora Svetlana Stevanovic Mohammad Jafari Zoran Ristovski Richard J. Brown Timothy Bodisco Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine Applied Sciences diesel engine cold start intermediate start engine stop/start engine performance IMEP BMEP |
| title | Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine |
| title_full | Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine |
| title_fullStr | Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine |
| title_full_unstemmed | Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine |
| title_short | Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine |
| title_sort | engine performance and emissions analysis in a cold intermediate and hot start diesel engine |
| topic | diesel engine cold start intermediate start engine stop/start engine performance IMEP BMEP |
| url | https://www.mdpi.com/2076-3417/10/11/3839 |
| work_keys_str_mv | AT faisallodi engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT alizare engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT priyankaarora engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT svetlanastevanovic engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT mohammadjafari engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT zoranristovski engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT richardjbrown engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine AT timothybodisco engineperformanceandemissionsanalysisinacoldintermediateandhotstartdieselengine |