Effect of Hydrogen Addition on Combustion and Emission Characteristics of High Speed Spark Ignition Engine- An Experimental Study

Shivaprasad, K. V.; Chitragar, PR; Kumar, Girish

doi:10.4271/2015-01-1684

Cited by 18 publications

(7 citation statements)

References 25 publications

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“…Moreover, the HC emissions for all hydrogen-based fuels increased as engine speed increased. This can be accredited to the higher flame speed, shorter distance of quenching, and greater diffusivity of hydrogen, which increase the formation rate of OH radicals and thus reduce HC emissions (Chitragar et al, 2017;Ji et al, 2012;Shivaprasad et al, 2015Shivaprasad et al, , 2016. The water injection into the engine's intake manifold also influences the emission of HC.…”

Section: Hc Emissionmentioning

confidence: 99%

Influence of water‐methanol injection and turbocharging on the performance of a hydrogen‐fueled spark ignition engine

Chitragar,

Shivaprasad,

Ichchangi

et al. 2023

Environmental Quality Mgmt

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This article presents a study that compares the performance and emission characteristics of a four‐stroke, four‐cylinder spark ignition (SI) engine fueled by gasoline and neat hydrogen. The engine was equipped with turbocharging to optimize ignition timing for power boosting and vaporized water–methanol injection to reduce emissions. Engine tests were conducted at speeds ranging from 2000 to 6000 rpm, with a fixed intake pressure and varying quantities of hydrogen and spark advance timings. The study compared the results of non‐turbocharged and turbocharged engines with water–methanol injection in terms of combustion, performance, and emissions. The findings showed that the turbocharged water–methanol hydrogen operation had a higher brake thermal efficiency (BTE) than its counterpart, while the brake power of the hydrogen engine operation increased with turbocharging but slightly decreased with water–methanol injection. Additionally, volumetric efficiency improved by 7% for turbocharged and 4% for water‐injected hydrogen engine operation compared to the counterpart. The cylinder pressure for turbocharging with water–methanol operation yielded 16.32% higher compared with counterpart gasoline engine operation. Finally, nitrogen oxides (NOx) emissions were reduced with turbocharging and water–methanol injection compared to the counterpart non‐turbocharged hydrogen engine operation.

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Section: Hc Emissionmentioning

confidence: 99%

Influence of water‐methanol injection and turbocharging on the performance of a hydrogen‐fueled spark ignition engine

Chitragar,

Shivaprasad,

Ichchangi

et al. 2023

Environmental Quality Mgmt

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“…So advantage of this is that hydrogen can run on a leaner air-fuel mixture which ensures prompt ignition [2]. Also, from well-to-wheel analysis, it has been observed that hydrogen-powered vehicles have low consumption of fuel and emit few greenhouse gases throughout the cycle [3]. Also, it has been observed that HHO gas can be used as an additive along with petrol to reduce emissions [4].…”

Section: Introductionmentioning

confidence: 99%

Study on Exhaust Gas Characteristics of SI Engine Using Fuel (Gasoline) & HHO Gas

Kharshiduzzaman,

Ahmmed,

Munshi

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Experiments have been carried out to investigate the effect of HHO gas on the emission and performance of SI engines. Water was converted into hydrogen and oxygen consisting of a 2:1 volume ratio by electrolysis process, which is called HHO (oxyhydrogen gas). An HHO fuel cell had been fabricated to generate the HHO gas required to feed the engine. This HHO is then mixed with filtered air, which is after the air filter system and before the inlet manifold system of the vehicle. In this investigation, a 125-cc single-cylinder 4-stroke air-cooled engine was used. The exhaust gas characteristics were sampled and measured using a gas analyzer. It was observed that when HHO gas had been introduced into the air/fuel mixture, it consequently reduced the concentration of NO, NOx, CO, engine temperature, and HC by about 50%, 50%, 38%, 5% & and 45% respectively. Also, a reduction in fuel consumption is noticed for the same engine RPM and load conditions when HHO gas was imported into the A/F mixture. Also, when HHO is introduced into the system, the concentration of O2 CO2 increases by about 50% and 23% respectively.

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“…Logically, adding additives to low‐octane fuel will increase the engine performance and lowers the emission under different operation conditions. This is well‐known and has been conducted through a large number of academic works as in Hadi and colleagues 5–14 . But, the real question is: Is it worth adding commercial additives to low‐octane fuels instead of using fuel with medium or high octanes?…”

Section: Introductionmentioning

confidence: 99%

“…This is well-known and has been conducted through a large number of academic works as in Hadi and colleagues. [5][6][7][8][9][10][11][12][13][14] But, the real question is: Is it worth adding commercial additives to low-octane fuels instead of using fuel with medium or high octanes? This is the main contribution of this work.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the effect of fuel types on the performance of spark ignition engine

2022

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Different fuels are being used daily in the city of Kirkuk, Iraq for operating vehicles with spark‐ignition internal combustion engines. Aiming to address the effects of these fuels on both engines and the environment, this work conducts an experimental study where a single‐cylinder, four‐stroke small spark ignition engine is employed. Three types of benzene with different octane ratings (low with an additive [85.8%], medium [89.2%], and high [95.6%]) are utilized in the study as they are the most consumed fuel in the area of the study. Moreover, the low‐octane fuel will be addressed with a commercial additive. In addition to engine performance, the exhaust gases and sound levels are analyzed as well. Through the outcomes, it is observed that the fuel with higher octane numbers relatively produces better engine performance and pollution. At normal engine speed, the fuel with a medium octane rating, however, has close engine performance results but with worse pollution effects. On the other hand, the engine fails to start with low‐octane fuel without the additive. The additive improves the engine performance with the low octane fuel and surprisingly produces fewer pollution gases than the fuel with medium octane number. However, the engine still behaves worse than with the other fuels at normal engine speed.

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Effect of Hydrogen Addition on Combustion and Emission Characteristics of High Speed Spark Ignition Engine- An Experimental Study

Cited by 18 publications

References 25 publications

Influence of water‐methanol injection and turbocharging on the performance of a hydrogen‐fueled spark ignition engine

Influence of water‐methanol injection and turbocharging on the performance of a hydrogen‐fueled spark ignition engine

Study on Exhaust Gas Characteristics of SI Engine Using Fuel (Gasoline) & HHO Gas

Experimental study of the effect of fuel types on the performance of spark ignition engine

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