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Title: An experimental study on performance and emission characteristics of a hydrogen fuelled spark ignition engine
Authors: Kahraman, Erol
Özcanlı, Şevket Cihangir
Özerdem, Barış
Keywords: Internal combustion engines
Emission characteristics
Performance characteristics
SI engine
Atmospheric pressure
Publisher: Elsevier Ltd.
Source: Kahraman, E., Özcanlı, Ş. C., and Özerdem, B. (2007). An experimental study on performance and emission characteristics of a hydrogen fuelled spark ignition engine. International Journal of Hydrogen Energy, 32(12), 2066-2072. doi:10.1016/j.ijhydene.2006.08.023
Abstract: In the present paper, the performance and emission characteristics of a conventional four cylinder spark ignition (SI) engine operated on hydrogen and gasoline are investigated experimentally. The compressed hydrogen at 20 MPa has been introduced to the engine adopted to operate on gaseous hydrogen by external mixing. Two regulators have been used to drop the pressure first to 300 kPa, then to atmospheric pressure. The variations of torque, power, brake thermal efficiency, brake mean effective pressure, exhaust gas temperature, and emissions of NOx, CO, CO2, HC, and O2 versus engine speed are compared for a carbureted SI engine operating on gasoline and hydrogen. Energy analysis also has studied for comparison purpose. The test results have been demonstrated that power loss occurs at low speed hydrogen operation whereas high speed characteristics compete well with gasoline operation. Fast burning characteristics of hydrogen have permitted high speed engine operation. Less heat loss has occurred for hydrogen than gasoline. NOx emission of hydrogen fuelled engine is about 10 times lower than gasoline fuelled engine. Finally, both first and second law efficiencies have improved with hydrogen fuelled engine compared to gasoline engine. It has been proved that hydrogen is a very good candidate as an engine fuel. The obtained data are also very useful for operational changes needed to optimize the hydrogen fueled SI engine design.
ISSN: 0360-3199
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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