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Modelling piloted ignition of wood and plastics

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Sep 2012 Netherlands Publisher:Elsevier BVJournal:Waste Management, volume 32, pages 1,659-1,668 (issn: 0956-053X,

Authors: Blijderveen, M. van; Bramer, E.A.; Brem, G.;

doi: 10.1016/j.wasman.2012.03.031

pmid: 22595838

Modelling piloted ignition of wood and plastics

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Abstract

To gain insight in the startup of an incinerator, this article deals with piloted ignition. A newly developed model is described to predict the piloted ignition times of wood, PMMA and PVC. The model is based on the lower flammability limit and the adiabatic flame temperature at this limit. The incoming radiative heat flux, sample thickness and moisture content are some of the used variables. Not only the ignition time can be calculated with the model, but also the mass flux and surface temperature at ignition. The ignition times for softwoods and PMMA are mainly under-predicted. For hardwoods and PVC the predicted ignition times agree well with experimental results. Due to a significant scatter in the experimental data the mass flux and surface temperature calculated with the model are hard to validate. The model is applied on the startup of a municipal waste incineration plant. For this process a maximum allowable primary air flow is derived. When the primary air flow is above this maximum air flow, no ignition can be obtained.

Country

Netherlands

Related Organizations

Delft University of Technology
Netherlands
University of Twente
Netherlands

Keywords

Hot Temperature, IR-85039, air pollution, flammability, Combustion, Incineration, surface temperature, Atmospheric temperature, hydrocarbon, plastic, Packed bed, Surface properties, Wastes, Polyvinyl Chloride, TS - Technical Sciences, Hardwoods, Industrial Innovation, polyvinylchloride, Physics, Air, article, Temperature, Air flow, municipal solid waste, Municipal waste incineration, Ignition, Wood, SDG 11 - Sustainable Cities and Communities, Packed beds, Elastomers, priority journal, solid, Gain insight, Sample thickness, METIS-293723, Heat flux, Polyvinyl chlorides, Plastics, airflow, wood, PID - Process & Instrumentation Development, Surface Properties, Lower flammability limits, heat flux, Experimental data, Piloted ignition, Fires, Ignition time, plastic waste, incineration, Polymethyl Methacrylate, Fluid Mechanics Chemistry & Energetics, Radiative heat fluxes, temperature, modeling, Models, Theoretical, poly(methyl methacrylate), Pinus, energy balance, Heat, Developed model, Primary air, Waste incineration, Waste, waste management, heat, Surface temperatures, combustion

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	12
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average