Experimental and modeling study of the mutual oxidation of N-pentane and NO at low temperature in a jet stirred reactor

Hao Zhao, Lingnan Wu, Charles Patrick, Zunhua Zhang, Yiguang Ju

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The mutual oxidation of n-pentane and nitric oxide (NO) at 500-800K has been studied at the fuel lean condition (φ = 0.5) in an atmospheric jet stirred reactor (JSR). The concentration of NO in the mixture is varied between 0 to 1070ppm. Key oxidation species, like n-pentane, O2, CO, CO2, NO, NO2, CH2O, C2H4, and CH3CHO are in-situ quantified by using an electron impact molecular beam mass spectrometer (MBMS), a micro-gas chromatograph (µ-GC), and a dual-modulation faraday rotation spectrometer (DM-FRS) simultaneously. The experimental results show that NO has different sensitization characteristics on n-pentane oxidation in three different temperature windows. NO addition delays the onset temperature of low temperature oxidation of n-pentane between 550-650K, weakens the negative temperature coefficient (NTC) behavior in the NTC region (650-750K), but accelerates the high temperature oxidation to be in the intermediate temperature region (750-800K). Combined with a modified n-pentane mechanism (Bugler et al. 2017) and an newly developed NOx sub-mechanism (Zhao et al. 2019 In press), a new n-pentane/NOx kinetic model is developed in this paper to predict the experimental results. It shows that the three distinct temperature-dependent characteristics of NO sensitization effects are properly captured using the present model.

Original languageEnglish
Title of host publicationAIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Edition210059
ISBN (Print)9781624105241
DOIs
Publication statusPublished - 2018
Externally publishedYes
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: 8 Jan 201812 Jan 2018

Publication series

NameAIAA Aerospace Sciences Meeting, 2018
Number210059

Conference

ConferenceAIAA Aerospace Sciences Meeting, 2018
Country/TerritoryUnited States
CityKissimmee
Period8/01/1812/01/18

ASJC Scopus subject areas

  • Aerospace Engineering

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