A quasi-dimensional model for the power cycle of a hydrogen-fuelled ICE

Verhelst, Sebastian; Sierens, Roger

doi:10.1016/j.ijhydene.2007.02.011

Cited by 88 publications

(54 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The maximum pressure decreases as AFR increases. This result is agreed with observation of (Abd Alla, 2002;Verhelst and Sierens, 2007). The maximum pressure are obtained of 49.62 and 29.14 bar at AFR of 34.33 and 171.65 respectively due to the decrease amount of hydrogen in inlet charge to the cylinder.…”

Section: Model Validationsupporting

confidence: 92%

Transient in-Cylinder Gas Flow Characteristics of Single Cylinder Port Injection Hydrogen Fueled Engine

Panagiotis¹

2010

American Journal of Applied Sciences

View full text Add to dashboard Cite

Problem statement:The variation of the in-cylinder gas flow characteristics for single cylinder port injection hydrogen fueled internal combustion engine was investigated through transient state simulation. Approach: One dimensional gas dynamics was described the flow and heat transfer in the components of the engine model. Special attention is paid to selection and correction of heat transfer correlation which describe of in-cylinder heat transfer to coincide with the practical observations. The engine model was simulated with variable engine speed and Air Fuel Ratio (AFR). Engine speed varied from 2000-5000 rpm with increment equal to 1000 rpm, while AFR changed from stoichiometric to lean limit. Results: The acquired results showed that the maximum in-cylinder temperature and pressure obtained of 2753 K and 49.62 bar at 24°CA ATDC and 13°CA ATDC for AFR = 34.33 respectively, while the minimum in-cylinder temperature and pressure obtained of 1366 K and 29.14 bar at 18 deg CA of ATDC and 8 deg CA of ATDC for AFR = 171.65 respectively. The obtained results show that AFR has a crucial effect on characteristics variation during the power cycle whilst engine speed has minor effects. Conclusion: These results utilized for study the combustion process, fuel consumption, emission production and engine performance.

show abstract

Section: Model Validationsupporting

confidence: 92%

Transient in-Cylinder Gas Flow Characteristics of Single Cylinder Port Injection Hydrogen Fueled Engine

Panagiotis¹

2010

American Journal of Applied Sciences

View full text Add to dashboard Cite

show abstract

“…A two-zone formulation separates the burned from the unburned gases by an infinitely thin, spherically propagating flame front. At Ghent Uni-55 versity, a QD code for the power cycle of hydrogen fueled engines has been developed and validated during earlier work (GUEST: Ghent University Engine Simulation Tool) [8]. The current work aims to extend this code to light alcohol fuels (i.e.…”

Section: Light Alcohols As Si Engine Fuelsmentioning

confidence: 99%

“…The current two-zone QD power cycle model was derived using several standard assumptions, discussed in [8,7]. The equations for the rate of change of the cylinder pressure dp/dθ, burned and unburned temperatures, dT b /dθ and dT u /dθ, are derived from conservation of energy.…”

Section: Framework and Assumptionsmentioning

confidence: 99%

See 1 more Smart Citation

Development and validation of a quasi-dimensional model for methanol and ethanol fueled SI engines

2014

Self Cite

View full text Add to dashboard Cite

Methanol and ethanol are promising alternative SI engine fuels. Engine simulation tools could help to unlock the full potential of these fuels. Previous work by the current authors has focused on building submodels to predict the gas dynamics, combustion and knock occurrence in alcohol engines. Here, 10 these building blocks are implemented in a quasi-dimensional engine simulation code, which is subsequently validated against measurements on two engines for various working conditions. The power cycle predictions for varying mixture composition are significantly improved by the introduction of new laminar burning velocity correlations. A comparison of turbulent combustion 15 models indicates that models including thermodiffusive properties perform slightly better than simpler formulations. Finally, a preliminary evaluation of a new knock prediction model for methanol engines confirms useful results can be obtained for quantities relevant to knock. The largest inaccuracies occur for varying equivalence ratios. Including the effects of methanol on 20 evaporation cooling and wall heat transfer might resolve this. The higher heat of vaporization relative to gasoline also required the inclusion of fuel puddling dynamics for a correct prediction of the volumetric efficiency by the breathing cycle model.

show abstract

“…This is a well established method for flame imaging in combustion studies at Leeds University [12,13]. A high 85 speed Phantom digital camera with 256 megabytes integral image memory was used to capture flame propagation.…”

Section: Schlieren Flame Photographymentioning

confidence: 99%

The turbulent burning velocity of methanol–air mixtures

Vancoillie

Sharpe²,

Lawes

et al. 2014

Fuel

Self Cite

View full text Add to dashboard Cite

Methanol is a sustainable and versatile alternative fuel for spark-ignition engines and other combustion applications. To characterize the combustion behavior of this fuel, a good understanding of the factors affecting its turbulent burning velocity is re-10 quired. This paper presents experimental values of the turbulent burning velocity of methanol-air mixtures obtained in a fan-stirred bomb, for u ′ = 2-6 m/s, φ= 0.8-1.4, T= 358 K and pressures up to 0.5 MPa. In combination with laminar burning velocity values previously obtained on the same rig, these measurements are used to provide better insight into the various factors affecting u t of methanol, and to assess to what degree 15 existing turbulent combustion models can reproduce experimental trends. It appeared that most models correctly accounted for the effects of turbulent rms velocity u ′ . With respect to the effects of φ and pressure, however, models accounting for flame stretch and instabilities, through the inclusion of model terms depending on thermodiffusive mixture properties and pressure, had a slight edge on simpler formulations.

show abstract

A quasi-dimensional model for the power cycle of a hydrogen-fuelled ICE

Cited by 88 publications

References 34 publications

Transient in-Cylinder Gas Flow Characteristics of Single Cylinder Port Injection Hydrogen Fueled Engine

Transient in-Cylinder Gas Flow Characteristics of Single Cylinder Port Injection Hydrogen Fueled Engine

Development and validation of a quasi-dimensional model for methanol and ethanol fueled SI engines

The turbulent burning velocity of methanol–air mixtures

Contact Info

Product

Resources

About