Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing

Natural gas (NG) has many advantages of clean fuels and can replace gasoline in spark ignition (SI) engines. However, it comes with disadvantages such as low energy density. Hydrogen blended NG can improve the fuel characteristics. Ignition timing also plays an important role in engine performance,...

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Main Authors: Vivek Pandey, Suresh Guluwadi, Gezahegn Habtamu Tafesse
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Cogent Engineering
Subjects:
Online Access:http://dx.doi.org/10.1080/23311916.2021.2010925
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author Vivek Pandey
Suresh Guluwadi
Gezahegn Habtamu Tafesse
author_facet Vivek Pandey
Suresh Guluwadi
Gezahegn Habtamu Tafesse
author_sort Vivek Pandey
collection DOAJ
description Natural gas (NG) has many advantages of clean fuels and can replace gasoline in spark ignition (SI) engines. However, it comes with disadvantages such as low energy density. Hydrogen blended NG can improve the fuel characteristics. Ignition timing also plays an important role in engine performance, especially at lean limits. Experiments were conducted for performance and emissions with hydrogen-compressed natural gas (HCNG) blends in a spark ignition (SI) engine with fixed ignition timing. HCNG blends with 0–15% hydrogen were tested with maximum brake torque (MBT) spark timing 30° before top dead center (BTDC) ignition. Significant reduction of carbon monoxide (CO), carbon dioxide (CO2) and hydrocarbons (HC) along with improved break thermal efficiency was observed with higher hydrogen fraction. There was no significant benefit in indicated thermal efficiency or NOx reduction by using MBT ignition. Hence, the expensive retrofitting of using variable spark timing apparatus can be avoided for on-road vehicles.
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spelling doaj.art-193fe132775543ddb63b45fb942bae242023-09-02T15:25:26ZengTaylor & Francis GroupCogent Engineering2331-19162022-12-019110.1080/23311916.2021.20109252010925Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timingVivek Pandey0Suresh Guluwadi1Gezahegn Habtamu Tafesse2SoMCME, Adama Science and Technology UniversityChemical and Materials Engineering, Adama Science and Technology UniversityChemical and Materials Engineering, Adama Science and Technology UniversityNatural gas (NG) has many advantages of clean fuels and can replace gasoline in spark ignition (SI) engines. However, it comes with disadvantages such as low energy density. Hydrogen blended NG can improve the fuel characteristics. Ignition timing also plays an important role in engine performance, especially at lean limits. Experiments were conducted for performance and emissions with hydrogen-compressed natural gas (HCNG) blends in a spark ignition (SI) engine with fixed ignition timing. HCNG blends with 0–15% hydrogen were tested with maximum brake torque (MBT) spark timing 30° before top dead center (BTDC) ignition. Significant reduction of carbon monoxide (CO), carbon dioxide (CO2) and hydrocarbons (HC) along with improved break thermal efficiency was observed with higher hydrogen fraction. There was no significant benefit in indicated thermal efficiency or NOx reduction by using MBT ignition. Hence, the expensive retrofitting of using variable spark timing apparatus can be avoided for on-road vehicles.http://dx.doi.org/10.1080/23311916.2021.2010925alternative fuelshcngemissionshydrocarbonsnitrogen oxidesignition timing
spellingShingle Vivek Pandey
Suresh Guluwadi
Gezahegn Habtamu Tafesse
Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing
Cogent Engineering
alternative fuels
hcng
emissions
hydrocarbons
nitrogen oxides
ignition timing
title Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing
title_full Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing
title_fullStr Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing
title_full_unstemmed Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing
title_short Performance and emission study of low HCNG fuel blend in SI engine with fixed ignition timing
title_sort performance and emission study of low hcng fuel blend in si engine with fixed ignition timing
topic alternative fuels
hcng
emissions
hydrocarbons
nitrogen oxides
ignition timing
url http://dx.doi.org/10.1080/23311916.2021.2010925
work_keys_str_mv AT vivekpandey performanceandemissionstudyoflowhcngfuelblendinsienginewithfixedignitiontiming
AT sureshguluwadi performanceandemissionstudyoflowhcngfuelblendinsienginewithfixedignitiontiming
AT gezahegnhabtamutafesse performanceandemissionstudyoflowhcngfuelblendinsienginewithfixedignitiontiming