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Title: Ignition characteristics of cellulose hydrochar using in-situ diagnostics
This work investigates the ignition behavior of cellulose hydrochar fuels carbonized at two different temperatures. Particles are burned in a Hencken burner under various O2/N2 mixtures where the impacts of ambient temperature and oxygen mole fractions are assessed independently. CH* chemiluminescence imaging and particle image velocimetry are used to characterize the ignition delay time. Results reveal that for both hydrochars ignition delay time is inversely proportional to the surrounding gas temperature. Ignition delay time shows a non-monotonic dependency on O2 mole fraction. Increasing the O2 fraction decreases the ignition delay time until O2 concentration is at a critical value, after which it increases.  more » « less
Award ID(s):
2031710
PAR ID:
10536034
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
Combustion Institute
Date Published:
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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