The effect of HRG gas addition on diesel engine combustion characteristics and exhaust emissions

Birtas, Adrian; Voicu, Iulian; Petcu, Cristian; Chiriac, Radu; Apostolescu, Nicolae

doi:10.1016/j.ijhydene.2011.06.015

Cited by 27 publications

(11 citation statements)

References 10 publications

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“…The higher diffusing property of OEH-HHOg as makes the fuel mixture more homogeneous and also due to its high flame velocity, resulting in more CO 2 emission when the combustion is initiated by diesel combustion. When OEH-HHO gas of 3.3 lpm is inducted at 100% rated load of the engine, the smoke unit is 31 HSU compares to pure petroleum diesel combustion of 42 HSU, by a decrease of 26.19%, which was also proved earlier by Birtas et al [20]. Figure 6 represents the variation of UBHC emission, when the test engine was operated with the assistance of OEH-HHO gas at 1 lpm and 3.3 lpm.…”

Section: Carbon Dioxidesupporting

confidence: 68%

“…Birtas et al [20] made their investigation of using the HRG gas, on a naturally aspirated direct injection, tractor diesel engine with four cylinders in-line having the total capacity of 3759 cm 3 , nominal power of 50 kW at 2400 rpm, maximum torque of 228 Nm at 1400 rpm, and the compression ratio of 17.5. The gas, produced by water electrolyzer was aspirated along with the air stream inducted into the cylinder.…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of oxygen enriched hydrogen-HHO gas addition on DI diesel engine performance, emission and combustion characteristics

2014

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Nowadays, more researches focus on protecting the environment. Present investigation concern with the effectiveness of oxygen enriched hydrogen-HHO gas addition on performance, emission and combustion characteristics of a direct injection diesel engine. Here the oxygen enriched hydrogen-HHO gas was produced by the process of water electrolysis. When potential difference is applied across the anode and cathode electrodes of the electrolyzer, water is transmuted into oxygen enriched hydrogen-HHO gas. The produced gas was aspirated into the cylinder along with intake air at the flow rates of 1 lpm and 3.3 lpm. The results show that when oxygen enriched hydrogen-HHO gas was inducted, the brake thermal efficiency of the engine increased by 11.06%, carbon monoxide decreased by 15.38%, unburned hydrocarbon decreased by 18.18%, carbon dioxide increased by 6.06%, however, the NO x emission increased by 11.19%.

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Section: Carbon Dioxidesupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Effectiveness of oxygen enriched hydrogen-HHO gas addition on DI diesel engine performance, emission and combustion characteristics

2014

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“…At 40% engine load, NOx decreases with hydrogen reach gas concentration less than 8%, while at 60%, NOx constantly increases. The impact on the brake thermal efficiency is slightly negative up to 2% .…”

Section: Reducing the Carbon Footprint Of Fuelsmentioning

confidence: 96%

Progress in high performance, low emissions, and exergy recovery in internal combustion engines

Punov

Evtimov

Chiriac

et al. 2016

Int. J. Energy Res.

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Summary This article first gives a brief review of thermal engines designed for terrestrial transportation since the 1900s. We then outline the main developments in the state of the art and knowledge about internal combustion engines, focusing on the increasingly stringent pollution constraints imposed since the 1990s. The general concept of high‐energy performance machines is analyzed from the energy, exergy, and public health point of view and illustrated with typical examples of clean energy production and zero emissions. Whereas the energy analysis revealed high potential of waste heat recovery from both exhaust and cooling system, the exergetic analysis revealed much higher recovery potential from exhaust gases. The exergy content of exhaust gases was observed to be within the range from 10.4% to 20.2% of the fuel energy. The cooling exergy is within the range from 1.2% to 3.4% of the fuel energy. The article concludes with some perspectives for the emergence of an economic model that could be applied to land‐based transport systems in the framework of energy transition by 2030. Copyright © 2016 John Wiley & Sons, Ltd.

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“…35 Moreover, HEB combusted with diesel fuel becomes leaner and have developed multiple flames at low velocities, which led to stoichiometric premixed combustion. 36 This led to decreased NHRR after TDC in dual-fuel mode of operations. The maximum NHRR for diesel was estimated: 41.19 J/ CA when compared with 42.9, 43.9, 44.1, 46.2, and 47.9 J/ CA for dual-fuel mode at 0.1, 0.2, 0.3, 0.4, and 0.5 kg/hr, respectively at 3.5-bar bmep.…”

Section: Combustion Analysismentioning

confidence: 99%

Effect of hydrogen‐enriched biogas induction on combustion, performance, and emission characteristics of dual‐fuel compression ignition engine

Rosha

Ibrahim

Nanda

et al. 2020

Asia-Pacific J Chem Eng

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Gaseous fuel induction in a compression ignition (CI) engine has picked up much attention over the most recent few years, particularly when it is produced by using renewable sources. In this study, hydrogen-enriched biogas (HEB) was used as a gaseous fuel and co-combusted in dual-fuel CI engine.Experimentation was carried out on a 3.5-kW CI engine test rig in the brake mean effective pressure range between 0 and 3.5 bar, as well as, HEB between 0.1 and 0.5 kg/hr. HEB induction effects on various engine characteristics (combustion, performance, and emission) were studied at rated engine speed (1,500 rpm). Results revealed that the peak cylinder pressure and ignition delay period increased with increasing HEB proportion (0.1 to 0.5 kg/hr) as compared with diesel mode. The calorific value of HEB (57.0 MJ/kg) is higher than diesel (42.0 MJ/kg), which led to improved BTE in dual-fuel mode. The emission results showed that with an increase of HEB rates, the NOx emission mildly decreases, but smoke opacity and hydrocarbon emissions majorly reduce. Thus, the HEB induction has great potential to be a feasible technological solution to overcome low BTE and high hydrocarbon emissions in biogas operated CI engines.

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The effect of HRG gas addition on diesel engine combustion characteristics and exhaust emissions

Cited by 27 publications

References 10 publications

Effectiveness of oxygen enriched hydrogen-HHO gas addition on DI diesel engine performance, emission and combustion characteristics

Effectiveness of oxygen enriched hydrogen-HHO gas addition on DI diesel engine performance, emission and combustion characteristics

Progress in high performance, low emissions, and exergy recovery in internal combustion engines

Effect of hydrogen‐enriched biogas induction on combustion, performance, and emission characteristics of dual‐fuel compression ignition engine

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