Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance
This investigation examines how a Homogeneous Charge Compression Ignition (HCCI) engine on combustion, performance, and emissions are influenced by a number of input parameters, including as Diesel/Biodiesel blend ratios, load, Hydrogen-Induced Flow Rate and injection timing (premixed low-temperatur...
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Elsevier
2025-09-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25008585 |
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| author | M. Prabhahar S. Prakash Haiter Lenin Allasi Edwin Geo Varuvel Anand Kumar Ram Sujeet Kumar |
| author_facet | M. Prabhahar S. Prakash Haiter Lenin Allasi Edwin Geo Varuvel Anand Kumar Ram Sujeet Kumar |
| author_sort | M. Prabhahar |
| collection | DOAJ |
| description | This investigation examines how a Homogeneous Charge Compression Ignition (HCCI) engine on combustion, performance, and emissions are influenced by a number of input parameters, including as Diesel/Biodiesel blend ratios, load, Hydrogen-Induced Flow Rate and injection timing (premixed low-temperature combustion mode with early direct injection). The results, which were obtained using Response Surface Methodology (RSM), show that the best combinations of these factors significantly enhance combustion efficiency and lower emissions. A 20 % Diesel/Fuel blend, 15 kgf load, 3 lpm HIFR, and 18°BTDC injection timing results in a peak combustion pressure of 61.55 bar, while a 20 % blend, 12 kgf load, 0 lpm HIFR, and 22°BTDC produces the maximum heat release rate (HRR) of 68.33 J/deg. Similar conditions give the highest Brake Thermal Efficiency (BTE) of 30.92 %, while 20 % blend, 9 kgf load, 10 lpm HIFR, and 22°BTDC, the lowest Brake Specific Fuel Consumption (BSFC) of 0.342 kg/kWh. Additionally, emissions were optimized: CO by 0.112 %, HC by 44 ppm, NOx by 534 ppm and smoke decreased by 17 %. These results highlight how crucial it is to make exact parameter changes in order to maximize engine performance and reduce environmental effect. |
| format | Article |
| id | doaj-art-2c0c3e418cb24d4c8f33017813d6fd25 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-2c0c3e418cb24d4c8f33017813d6fd252025-08-20T03:29:09ZengElsevierCase Studies in Thermal Engineering2214-157X2025-09-017310659810.1016/j.csite.2025.106598Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performanceM. Prabhahar0S. Prakash1Haiter Lenin Allasi2Edwin Geo Varuvel3Anand Kumar Ram4Sujeet Kumar5Aarupadai Veedu Institute of Technology, Vinayaka Mission's Research Foundation, Deemed to Be University, Tamil Nadu, India; Corresponding author.Aarupadai Veedu Institute of Technology, Vinayaka Mission's Research Foundation, Deemed to Be University, Tamil Nadu, IndiaDepartment of Mechanical Engineering, Wollo University, Kombolcha Institute of Technology, 208 Kombolcha, EthiopiaDepartment of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul, TurkeyAarupadai Veedu Institute of Technology, Vinayaka Mission's Research Foundation, Deemed to Be University, Tamil Nadu, IndiaAarupadai Veedu Institute of Technology, Vinayaka Mission's Research Foundation, Deemed to Be University, Tamil Nadu, IndiaThis investigation examines how a Homogeneous Charge Compression Ignition (HCCI) engine on combustion, performance, and emissions are influenced by a number of input parameters, including as Diesel/Biodiesel blend ratios, load, Hydrogen-Induced Flow Rate and injection timing (premixed low-temperature combustion mode with early direct injection). The results, which were obtained using Response Surface Methodology (RSM), show that the best combinations of these factors significantly enhance combustion efficiency and lower emissions. A 20 % Diesel/Fuel blend, 15 kgf load, 3 lpm HIFR, and 18°BTDC injection timing results in a peak combustion pressure of 61.55 bar, while a 20 % blend, 12 kgf load, 0 lpm HIFR, and 22°BTDC produces the maximum heat release rate (HRR) of 68.33 J/deg. Similar conditions give the highest Brake Thermal Efficiency (BTE) of 30.92 %, while 20 % blend, 9 kgf load, 10 lpm HIFR, and 22°BTDC, the lowest Brake Specific Fuel Consumption (BSFC) of 0.342 kg/kWh. Additionally, emissions were optimized: CO by 0.112 %, HC by 44 ppm, NOx by 534 ppm and smoke decreased by 17 %. These results highlight how crucial it is to make exact parameter changes in order to maximize engine performance and reduce environmental effect.http://www.sciencedirect.com/science/article/pii/S2214157X25008585Hydrogen-induced flow rateInjection timingSimarouba methyl esterPerformanceEnvironment |
| spellingShingle | M. Prabhahar S. Prakash Haiter Lenin Allasi Edwin Geo Varuvel Anand Kumar Ram Sujeet Kumar Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance Case Studies in Thermal Engineering Hydrogen-induced flow rate Injection timing Simarouba methyl ester Performance Environment |
| title | Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance |
| title_full | Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance |
| title_fullStr | Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance |
| title_full_unstemmed | Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance |
| title_short | Optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester-diesel blends for enhanced HCCI engine performance |
| title_sort | optimization of hydrogen induced combustion and thermal characteristics in simarouba methyl ester diesel blends for enhanced hcci engine performance |
| topic | Hydrogen-induced flow rate Injection timing Simarouba methyl ester Performance Environment |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25008585 |
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