Spontaneous Ignition of n-Alkane Droplets with Various Volatility

Spontaneous Ignition of n-Alkane Droplets with Various Volatility

Ignition delays of a cool flame (τ1) and a hot flame (τt) were measured experimentally for single n-decane, n-dodecane, n-tetradecane and n-hexadecane droplets, which have similar volatilities to common commercial hydrocarbon fuels, in hot air. Droplet diameter was 0.7 mm. Ambient pressure was 0.3 a...

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Veröffentlicht in:TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 2004, Vol.47(157), pp.189-194
Hauptverfasser: MORIUE, Osamu, EIGENBROD, Christian, RATH, Hans J., TSUE, Mitsuhiro, KONO, Michikata, SATO, Jun’ichi
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Sprache:eng
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Droplet
Ignition Delay
Ignition Limit
Two-Stage Ignition
Volatility
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container_end_page 194
container_issue 157
container_start_page 189
container_title TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
container_volume 47
creator MORIUE, Osamu
EIGENBROD, Christian
RATH, Hans J.
TSUE, Mitsuhiro
KONO, Michikata
SATO, Jun’ichi
description Ignition delays of a cool flame (τ1) and a hot flame (τt) were measured experimentally for single n-decane, n-dodecane, n-tetradecane and n-hexadecane droplets, which have similar volatilities to common commercial hydrocarbon fuels, in hot air. Droplet diameter was 0.7 mm. Ambient pressure was 0.3 and 1.0 MPa. Ambient temperature was 550 K to 1000 K. Results show the similarity of the examined fuels in terms of reactivity of the low- and high-temperature reactions. Values of τ1 and τt were longer for fuels with lower volatility. Values of τ2 (=τt−τ1) were similar for examined fuels. Both the ignition limits of cool and hot flames were similar between fuels, but were slightly lower for less-volatile fuels.
doi_str_mv 10.2322/tjsass.47.189
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source J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Droplet
Ignition Delay
Ignition Limit
Two-Stage Ignition
Volatility
title Spontaneous Ignition of n-Alkane Droplets with Various Volatility
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