Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine

Jing Lun Li, Ming-Hsun Wu, Rong Horng Chen, Ta-Hui Lin, Jun Kai Wang

Research output: Contribution to conferencePaper

Abstract

The effects of pulsed water injection at the intake port of a modern port fuel injection gasoline engine were investigated. A port water injection system was developed and the water injector was installed on the intake runner of the single cylinder motorcycle engine at a location upstream of the fuel injector. The results show that with a water-gasoline injection ratio of 1, more than 80 % of NOx emission can be removed. The trade-off was a 25 % reduction in torque output at 4000 rpm and 20 % throttle opening; however, the decrease on torque can be controlled to be within 5 % by reducing water-gasoline mass ratios to less than 0.6. We also performed NOx emission modeling using one-dimensional gas dynamics code with extended Zeldovich mechanism, and consistent results were found between numerical prediction and experimental measurements. The port water injection approach appears to be an effective means for reducing NOx emission from a gasoline engine at low speed and high load conditions without largely sacrificing the performances on torque output and unburned hydrocarbon emissions.

Original languageEnglish
Publication statusPublished - 2009 Jan 1
Event7th Asia-Pacific Conference on Combustion, ASPACC 2009 - Taipei, Taiwan
Duration: 2009 May 242009 May 27

Conference

Conference7th Asia-Pacific Conference on Combustion, ASPACC 2009
CountryTaiwan
CityTaipei
Period09-05-2409-05-27

Fingerprint

water injection
spark ignition
gasoline
Water injection
Nitric oxide
nitric oxide
Engine cylinders
Electric sparks
Gasoline
Ignition
engines
Nitric Oxide
injection
Engines
torque
Torque
injectors
Water
water
fuel injection

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Chemical Engineering(all)

Cite this

Li, J. L., Wu, M-H., Chen, R. H., Lin, T-H., & Wang, J. K. (2009). Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.
Li, Jing Lun ; Wu, Ming-Hsun ; Chen, Rong Horng ; Lin, Ta-Hui ; Wang, Jun Kai. / Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.
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abstract = "The effects of pulsed water injection at the intake port of a modern port fuel injection gasoline engine were investigated. A port water injection system was developed and the water injector was installed on the intake runner of the single cylinder motorcycle engine at a location upstream of the fuel injector. The results show that with a water-gasoline injection ratio of 1, more than 80 {\%} of NOx emission can be removed. The trade-off was a 25 {\%} reduction in torque output at 4000 rpm and 20 {\%} throttle opening; however, the decrease on torque can be controlled to be within 5 {\%} by reducing water-gasoline mass ratios to less than 0.6. We also performed NOx emission modeling using one-dimensional gas dynamics code with extended Zeldovich mechanism, and consistent results were found between numerical prediction and experimental measurements. The port water injection approach appears to be an effective means for reducing NOx emission from a gasoline engine at low speed and high load conditions without largely sacrificing the performances on torque output and unburned hydrocarbon emissions.",
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Li, JL, Wu, M-H, Chen, RH, Lin, T-H & Wang, JK 2009, 'Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine', Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan, 09-05-24 - 09-05-27.

Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine. / Li, Jing Lun; Wu, Ming-Hsun; Chen, Rong Horng; Lin, Ta-Hui; Wang, Jun Kai.

2009. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.

Research output: Contribution to conferencePaper

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T1 - Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine

AU - Li, Jing Lun

AU - Wu, Ming-Hsun

AU - Chen, Rong Horng

AU - Lin, Ta-Hui

AU - Wang, Jun Kai

PY - 2009/1/1

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N2 - The effects of pulsed water injection at the intake port of a modern port fuel injection gasoline engine were investigated. A port water injection system was developed and the water injector was installed on the intake runner of the single cylinder motorcycle engine at a location upstream of the fuel injector. The results show that with a water-gasoline injection ratio of 1, more than 80 % of NOx emission can be removed. The trade-off was a 25 % reduction in torque output at 4000 rpm and 20 % throttle opening; however, the decrease on torque can be controlled to be within 5 % by reducing water-gasoline mass ratios to less than 0.6. We also performed NOx emission modeling using one-dimensional gas dynamics code with extended Zeldovich mechanism, and consistent results were found between numerical prediction and experimental measurements. The port water injection approach appears to be an effective means for reducing NOx emission from a gasoline engine at low speed and high load conditions without largely sacrificing the performances on torque output and unburned hydrocarbon emissions.

AB - The effects of pulsed water injection at the intake port of a modern port fuel injection gasoline engine were investigated. A port water injection system was developed and the water injector was installed on the intake runner of the single cylinder motorcycle engine at a location upstream of the fuel injector. The results show that with a water-gasoline injection ratio of 1, more than 80 % of NOx emission can be removed. The trade-off was a 25 % reduction in torque output at 4000 rpm and 20 % throttle opening; however, the decrease on torque can be controlled to be within 5 % by reducing water-gasoline mass ratios to less than 0.6. We also performed NOx emission modeling using one-dimensional gas dynamics code with extended Zeldovich mechanism, and consistent results were found between numerical prediction and experimental measurements. The port water injection approach appears to be an effective means for reducing NOx emission from a gasoline engine at low speed and high load conditions without largely sacrificing the performances on torque output and unburned hydrocarbon emissions.

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Li JL, Wu M-H, Chen RH, Lin T-H, Wang JK. Effects of water injection on nitric oxide emission of a single cylinder port injection spark ignition gasoline engine. 2009. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan.