CO2 emissions from a spark ignition engine operatin on natural-hydrogen blends (HCNG)

Navarro Arevalo, Emilio and Leo Mena, Teresa de Jesus and Corral, Roberto (2013). CO2 emissions from a spark ignition engine operatin on natural-hydrogen blends (HCNG). "Applied Energy", v. 101 ; pp. 112-120. ISSN 0306-2619. https://doi.org/10.1016/j.apenergy.2012.02.046.

Description

Title: CO2 emissions from a spark ignition engine operatin on natural-hydrogen blends (HCNG)
Author/s:
  • Navarro Arevalo, Emilio
  • Leo Mena, Teresa de Jesus
  • Corral, Roberto
Item Type: Article
Título de Revista/Publicación: Applied Energy
Date: 2013
ISSN: 0306-2619
Volume: 101
Subjects:
Freetext Keywords: Spark ignition engine; Natural gas–hydrogen blends; HCNG; CO2 emissions
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The addition of hydrogen to natural gas could be a short-term alternative to today’s fossil fuels, as greenhouse gas emissions may be reduced. The aim of this study is to evaluate the emissions and performance of a spark ignition engine fuelled by pure natural gas, pure hydrogen, and different blends of hydrogen and natural gas (HCNG). Increasing the hydrogen fraction leads to variations in cylinder pressure and CO2 emissions. In this study, a combustion model based on thermodynamic equations is used, considering separate zones for burned and unburned gases. The results show that the maximum cylinder pressure rises as the fraction of hydrogen in the blend increases. The presence of hydrogen in the blend leads to a decrease in CO2 emissions. Due to the properties of hydrogen, leaner fuel–air mixtures can be used along with the appropriate spark timing, leading to an improvement in engine emissions with no loss of performance.

More information

Item ID: 22625
DC Identifier: http://oa.upm.es/22625/
OAI Identifier: oai:oa.upm.es:22625
DOI: 10.1016/j.apenergy.2012.02.046
Official URL: http://www.sciencedirect.com/science/article/pii/S0306261912001456
Deposited by: Memoria Investigacion
Deposited on: 14 Nov 2014 15:59
Last Modified: 14 Nov 2014 15:59
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