Process for Study of Micro-pilot Diesel-NG Dual Fuel Combustion in a Constant Volume Combustion Vessel Utilizing the Premixed Pre-burn Procedure

Yang, Xuebin; Bonfochi Vinhaes, Vinicius; Turcios, Marco; McTaggart-Cowan, Gordon; Huang, Jian; Naber, Jeffrey; Shahbakhti, Mahdi; Schmidt, Henry; Atkinson, William

doi:10.4271/2019-01-1160

Title: Process for Study of Micro-pilot Diesel-NG Dual Fuel Combustion in a Constant Volume Combustion Vessel Utilizing the Premixed Pre-burn Procedure

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Abstract

A constant volume spray and combustion vessel utilizing the pre-burn mixture procedure to generate pressure, temperature, and composition characteristic of near top dead center (TDC) conditions in compression ignition (CI) engines was modified here with post pre-burn gas induction to incorporate premixed methane gas prior to diesel injection to simulate processes in dual fuel engines. Two variants of the methane induction system were developed and studied. The first used a high-flow modified direct injection injector and the second utilized auxiliary ports in the vessel that are used for normal intake and exhaust events. Flow, mixing, and limitations of the induction systems were studied. As a finding of this study, the high-flow modified direct injection injector was selected because of its controlled actuation and rapid closure. Further studies of the induction system post pre-burn were conducted to determine the temperature limit of the methane auto-ignition. It was found that for sufficient induction and mixing time determined from experimental observations and CFD modeling studies, a maximum core temperature of 750 K at the time of micro-pilot diesel injection can be achieved. Although lower than TDC temperatures in diesel CI engines, this temperature is sufficient for studying dual fuel injection and auto-ignition withmore »« less

Authors:

Yang, Xuebin ^[1]; Bonfochi Vinhaes, Vinicius ^[1]; Turcios, Marco ^[2]; McTaggart-Cowan, Gordon ^[2]; Huang, Jian ^[3]; Naber, Jeffrey ^[1]; Shahbakhti, Mahdi ^[1]; Schmidt, Henry ^[1]; Atkinson, William ^[1]

Michigan Technological Univ., Houghton, MI (United States)
Westport Fuel Systems Inc., Vancouver, BC (Canada)
Westport Innovations Inc., Vancouver, BC (Canada)

Publication Date:: Tue Apr 02 00:00:00 EDT 2019

Research Org.:: Michigan Technological Univ., Houghton, MI (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office

OSTI Identifier:: 1616703

Grant/Contract Number:: EE0007331

Resource Type:: Accepted Manuscript

Journal Name:: SAE Technical Paper Series

Additional Journal Information:: Journal Volume: 1; Conference: WCX SAE World Congress Experience, Detroit, MI (United States), 9-11 Apr 2019; Journal ID: ISSN 0148-7191

Publisher:: SAE International

Country of Publication:: United States

Language:: English

Subject:: 03 NATURAL GAS

Citation Formats


                    Yang, Xuebin, Bonfochi Vinhaes, Vinicius, Turcios, Marco, McTaggart-Cowan, Gordon, Huang, Jian, Naber, Jeffrey, Shahbakhti, Mahdi, Schmidt, Henry, and Atkinson, William. Process for Study of Micro-pilot Diesel-NG Dual Fuel Combustion in a Constant Volume Combustion Vessel Utilizing the Premixed Pre-burn Procedure.  United States: N. p., 2019. 
Web.  doi:10.4271/2019-01-1160.

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                    Yang, Xuebin, Bonfochi Vinhaes, Vinicius, Turcios, Marco, McTaggart-Cowan, Gordon, Huang, Jian, Naber, Jeffrey, Shahbakhti, Mahdi, Schmidt, Henry, & Atkinson, William. Process for Study of Micro-pilot Diesel-NG Dual Fuel Combustion in a Constant Volume Combustion Vessel Utilizing the Premixed Pre-burn Procedure.  United States.  https://doi.org/10.4271/2019-01-1160

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                    Yang, Xuebin, Bonfochi Vinhaes, Vinicius, Turcios, Marco, McTaggart-Cowan, Gordon, Huang, Jian, Naber, Jeffrey, Shahbakhti, Mahdi, Schmidt, Henry, and Atkinson, William. Tue .  
"Process for Study of Micro-pilot Diesel-NG Dual Fuel Combustion in a Constant Volume Combustion Vessel Utilizing the Premixed Pre-burn Procedure".  United States.  https://doi.org/10.4271/2019-01-1160.  https://www.osti.gov/servlets/purl/1616703.

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@article{osti_1616703,

  title        = {Process for Study of Micro-pilot Diesel-NG Dual Fuel Combustion in a Constant Volume Combustion Vessel Utilizing the Premixed Pre-burn Procedure},

  author       = {Yang, Xuebin and Bonfochi Vinhaes, Vinicius and Turcios, Marco and McTaggart-Cowan, Gordon and Huang, Jian and Naber, Jeffrey and Shahbakhti, Mahdi and Schmidt, Henry and Atkinson, William},

  abstractNote = {A constant volume spray and combustion vessel utilizing the pre-burn mixture procedure to generate pressure, temperature, and composition characteristic of near top dead center (TDC) conditions in compression ignition (CI) engines was modified here with post pre-burn gas induction to incorporate premixed methane gas prior to diesel injection to simulate processes in dual fuel engines. Two variants of the methane induction system were developed and studied. The first used a high-flow modified direct injection injector and the second utilized auxiliary ports in the vessel that are used for normal intake and exhaust events. Flow, mixing, and limitations of the induction systems were studied. As a finding of this study, the high-flow modified direct injection injector was selected because of its controlled actuation and rapid closure. Further studies of the induction system post pre-burn were conducted to determine the temperature limit of the methane auto-ignition. It was found that for sufficient induction and mixing time determined from experimental observations and CFD modeling studies, a maximum core temperature of 750 K at the time of micro-pilot diesel injection can be achieved. Although lower than TDC temperatures in diesel CI engines, this temperature is sufficient for studying dual fuel injection and auto-ignition with high cetane fuels. Results from this work confirm the feasibility of dual fuel combustion using the proposed CV process and provide constraints for further micro-pilot diesel-NG dual fuel combustion studies.},

  doi          = {10.4271/2019-01-1160},

  journal      = {SAE Technical Paper Series},

  number       = ,

  volume       = 1,

  place        = {United States},

  year         = {Tue Apr 02 00:00:00 EDT 2019},

  month        = {Tue Apr 02 00:00:00 EDT 2019}

}

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