Ignition by Thermal Radiation of Polyethylene and Human Feces Combustible Wastes: Time and Temperature to Ignition

Abstract:

Due to the growing energy demands of the world and the rapid depletion of fossil fuels, it is necessary to study new energy sources. The waste have a great potential to be tapped, as besides being a raw material abundant, their use helps in reducing the level of environmental pollution and curbing the volume of waste in cities. However, one should know well the combustion process these waste before using them as fuel. Thus, Ignition behavior of combustible wastes was studied in a built fixed bed reactor. To provide a controlled thermal radiation for the ignition instant, a radiative heat flux is generated by a metal surface called a cone heater calibrated to establish the radiative heat flux density provided by a thermal resistance of 2 kW. The heat flux was 25 to 30 kWm² over the top surface of the fuels. To validate the process, experiments with charcoal were performed varying the diameter of particles and air flow. After this, the polyethylene and human feces were analyzed. Their effects were investigated on the ignition time.

• Periodical: Advanced Materials Research (Volume 911)
• Pages: 373-377
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.911.373
• Online since: March 2014
• Authors: Filipe Arthur Firmino Monhol*, Marcio Ferreira Martins
• Keywords: Feces, Fixed Bed, Ignition, Polyethylene, Radiation, Waste

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