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Ignition Behavior of Benzoic Resin Solid Fuel Pellets over Surface Induction Heating Plate using LPG Flame Ignitor Venkat Pranesh, Sengottuvelan Balasubramanian, S. Mahalingam, S. Ravikumar, T. Christo Michael, and B. Kanimozhi Energy Fuels, Just Accepted Manuscript • DOI: 10.1021/acs.energyfuels.8b01256 • Publication Date (Web): 05 Jun 2018 Downloaded from http://pubs.acs.org on June 5, 2018
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Ignition Behavior of Benzoic Resin Solid Fuel Pellets over Surface Induction Heating Plate using LPG Flame Ignitor Venkat Pranesh1,*, S. Balasubramanian2, S. Mahalingam6, S.Ravikumar5, T. Christo Michael4, B. Kanimozhi3 1
Minerals and Inorganic Chemicals Division, Dawn Calorific Exports, Chennai 600033, TN, India Department of Inorganic Chemistry, University of Madras, Chennai 600025, TN, India 3 Department of Mechanical and Production Engineering, Sathyabama University, Chennai 600119, TN, India 4 Department of Mechanical Engineering, VIT University, Chennai 600127, TN, India 5 Department of Mechanical Engineering, Jeppiaar Maamallan Engineering College, Sriperumbudur 602108, TN, India 6 Department of Mechanical Engineering, Sona College of Technology, Salem 636005, TN, India 2
Abstract: In this paper, we introduce a novel and unprecedented solid fuel known as benzoic resin, which is equivalent to coal. Here, we focus on the ignition behavior of benzoic resin and for this purpose, we have employed an induction heating plate equipped with LPG flame ignitor. Additionally, an analytical model was also developed to estimate the ignition rate of this solid fuel. Experiments were carried out for various induction heating surface temperatures such as 70°C, 100°C, 130°C, 160°C, 210°C, 240°C, and 270°C respectively. The Fourier Transform Infrared spectral studies of benzoic resin exhibited two sharp peaks at lower wavenumber. The calorific value of benzoic resin is found to be 26,004.92 KJ/KG, which is higher than lignite and bituminous coal, except anthracite. The ignition and volatile initial release temperatures were found to be 70°C and 90°C, where these values are better than the other coal types. Also, the electrical conductivity of benzoic resin was measured to be 1620 µs/cm that is quite higher than the low and medium rank coals. The main experimental results revealed a linear variation of heat release rate for varying surface induction steel plate temperatures. A visible ignition was detected at the surface temperature of 70°C and the highest heat release rate of 260 J/S, which was achieved at 270°C surface temperature. Furthermore, a soaring heat release rate was accomplished for an increasing combustion time and also, good emission characteristics were quantified. Additionally, the ignition and heat release rate results were compared with other standard ASTM methods using Electric Bunsen Burner and Meker Fisher Burner which showed close correlation.
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Keywords: Coal, Benzoic Resin, Ignition, Flame, Emissions, Heat Release Rate,
*Corresponding author. Tel.: +91 7358442330; fax: 044 24715418 E-mail address:
[email protected] (Venkat Pranesh)
1. Introduction A well-known potential solid fuel, coal has transformed the human civilization since the beginning of industrial revolution. Coal is a basic component for generating electricity and production of steel, and cement. The exploration and mining of coal have been carried out throughout the many parts of the globe, but its current demand is still unpredictable (in the state of the pendulum.) The BP energy outlook 2017 forecasts that the energy demand will increase by 30% and coal will be one of the governing energy sources. Also, they predict that coal consumption at global level is expected to peak and its demand is plummeting sharply (6). Even the International Energy Agency (IEA) stated that till 2021 the demand for coal will climb barely. This plunging coal demand is due to increasing CO2 emission and hazards in the coal mines like coal outburst, explosion, etc. The earlier literature shows the importance of coal ignition study by different methods. Kim, Li, and Jeon (2014), analyzed the ignition behavior of various coal ranks and their pulverized particles with a flat flame burner under high heating rate. Five different coals such as lignite, anthracite, subbituminous, high-volatile bituminous and medium-volatile bituminous coal were used for experimentation and a high speed camera was deployed to capture the various ignition images of pulverized coal particles(
