Smoldering fire propagation in corn grain: an experimental study
Smoldering fire exhibits low-velocity combustion rates and is a threat commonly presented in agriculture grain storages. Some physical and chemical properties of the grain, including particle size, porosity, moisture, and the environmental conditions influence the propagation of the smoldering proce...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123020300578 |
| _version_ | 1818147788904464384 |
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| author | Ana Rosa Ahmed W.A. Hammad Eduardo Qualharini Elaine Vazquez Assed Haddad |
| author_facet | Ana Rosa Ahmed W.A. Hammad Eduardo Qualharini Elaine Vazquez Assed Haddad |
| author_sort | Ana Rosa |
| collection | DOAJ |
| description | Smoldering fire exhibits low-velocity combustion rates and is a threat commonly presented in agriculture grain storages. Some physical and chemical properties of the grain, including particle size, porosity, moisture, and the environmental conditions influence the propagation of the smoldering process. Many works evaluate the conditions to develop smoldering combustion based on particulate size and granular materials. However, only a few studies focusing on smoldering propagation in cornflour and granular grains. In this work, different particle diameters (181.6 μm, 776.4 μm and 1411 μm) and moisture contents (0% and 15%) of corn are examined to understand the corresponding impact on the smoldering propagation. To achieve this, samples of corn were placed inside a cylindrical reactor with thermocouples distributed along the apparatus’ central axis and heated by a hot plate, then the smoldering reaction with a rising heating transfer profile was analyzed. Our results demonstrate how changing storage conditions can profoundly influence the smoldering propagation within a pile of corn. |
| first_indexed | 2024-12-11T12:40:49Z |
| format | Article |
| id | doaj.art-d55ebb737b594a348bd7cd337b28ac90 |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-12-11T12:40:49Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-d55ebb737b594a348bd7cd337b28ac902022-12-22T01:07:00ZengElsevierResults in Engineering2590-12302020-09-017100151Smoldering fire propagation in corn grain: an experimental studyAna Rosa0Ahmed W.A. Hammad1Eduardo Qualharini2Elaine Vazquez3Assed Haddad4Programa de Engenharia Ambiental, Escola Politécnica da Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149 –Ilha Do Fundão, Centro de Tecnologia – Bloco D, 21941-909, Rio de Janeiro, Brazil; Corresponding author.Faculty of Built Environment, UNSW Sydney, AustraliaDepartamento de Construção Civil, Escola Politécnica da Universidade Federal Do Rio de Janeiro, Athos da Silveira Ramos, 149 – Ilha Do Fundão – Centro de Tecnologia – Bloco D, Sala 207, 21941-909, Rio de Janeiro, BrazilDepartamento de Construção Civil, Escola Politécnica da Universidade Federal Do Rio de Janeiro, Athos da Silveira Ramos, 149 – Ilha Do Fundão – Centro de Tecnologia – Bloco D, Sala 207, 21941-909, Rio de Janeiro, BrazilPrograma de Engenharia Ambiental, Escola Politécnica da Universidade Federal Do Rio de Janeiro, Av. Athos da Silveira Ramos, 149 –Ilha Do Fundão, Centro de Tecnologia – Bloco D, 21941-909, Rio de Janeiro, Brazil; Departamento de Construção Civil, Escola Politécnica da Universidade Federal Do Rio de Janeiro, Athos da Silveira Ramos, 149 – Ilha Do Fundão – Centro de Tecnologia – Bloco D, Sala 207, 21941-909, Rio de Janeiro, BrazilSmoldering fire exhibits low-velocity combustion rates and is a threat commonly presented in agriculture grain storages. Some physical and chemical properties of the grain, including particle size, porosity, moisture, and the environmental conditions influence the propagation of the smoldering process. Many works evaluate the conditions to develop smoldering combustion based on particulate size and granular materials. However, only a few studies focusing on smoldering propagation in cornflour and granular grains. In this work, different particle diameters (181.6 μm, 776.4 μm and 1411 μm) and moisture contents (0% and 15%) of corn are examined to understand the corresponding impact on the smoldering propagation. To achieve this, samples of corn were placed inside a cylindrical reactor with thermocouples distributed along the apparatus’ central axis and heated by a hot plate, then the smoldering reaction with a rising heating transfer profile was analyzed. Our results demonstrate how changing storage conditions can profoundly influence the smoldering propagation within a pile of corn.http://www.sciencedirect.com/science/article/pii/S2590123020300578Smoldering firesCorn grainCombustion velocityIgnitabilityExperiments |
| spellingShingle | Ana Rosa Ahmed W.A. Hammad Eduardo Qualharini Elaine Vazquez Assed Haddad Smoldering fire propagation in corn grain: an experimental study Results in Engineering Smoldering fires Corn grain Combustion velocity Ignitability Experiments |
| title | Smoldering fire propagation in corn grain: an experimental study |
| title_full | Smoldering fire propagation in corn grain: an experimental study |
| title_fullStr | Smoldering fire propagation in corn grain: an experimental study |
| title_full_unstemmed | Smoldering fire propagation in corn grain: an experimental study |
| title_short | Smoldering fire propagation in corn grain: an experimental study |
| title_sort | smoldering fire propagation in corn grain an experimental study |
| topic | Smoldering fires Corn grain Combustion velocity Ignitability Experiments |
| url | http://www.sciencedirect.com/science/article/pii/S2590123020300578 |
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