Determination of parameters used to prevent ignition of stored materials and to protect against explosions in food industries

Ramírez, Álvaro; Torrent, Javier García; Rodrí­guez, Pilar Rodriguez

doi:10.1016/j.jhazmat.2009.02.013

Cited by 38 publications

(18 citation statements)

References 15 publications

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“…This work completes the results obtained in a previous study examining the sensitivity of these materials to ignition and the severity of their explosions [28].…”

Section: Introductionsupporting

confidence: 85%

“…In the present work, samples of 2 g were placed in a test tube inside an aluminium block which was heated to the known Minimum Ignition Temperature with dust deposited on a layer (previously determined [28]). When the sample reached this temperature, the emission of volatile flammable substances was tested by approaching the sample with a glowing wire.…”

Section: Determination Of the Temperature Of Emission Of Flammable Vomentioning

confidence: 99%

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Experimental determination of self-heating and self-ignition risks associated with the dusts of agricultural materials commonly stored in silos

Ramírez

Torrent

Tascón

2010

Journal of Hazardous Materials

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“…This work completes the results obtained in a previous study examining the sensitivity of these materials to ignition and the severity of their explosions [28].…”

Section: Introductionsupporting

confidence: 85%

Section: Determination Of the Temperature Of Emission Of Flammable Vomentioning

confidence: 99%

Experimental determination of self-heating and self-ignition risks associated with the dusts of agricultural materials commonly stored in silos

Ramírez

Torrent

Tascón

2010

Journal of Hazardous Materials

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“…Several researchers have demonstrated that it is essential to characterize the sewage sludge [12,13]. Characterization of new fuels, mainly biomass, has experience an important advance through various researches in recent years [14,15], trying to have a complete scenario oftheir hazards Jikes the one nowadays existing for coal [16].…”

Section: Introduetionmentioning

confidence: 99%

Flammability properties of thermally dried sewage sludge

Fernandez-Añez

Torrent

Pejić

2014

Fuel

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HIGHLIGHTS• Flammability parameters of sludge are presented.• Relationships between chemical and flammability properties of sludge are analyzed.• Physical and chemical properties of sludge dusts affects their explosibility.• Seasons and origins of sludge should lead to a differentiation among samples. ABSTRACTThe treatment and disposal of sewage sludge is becoming an urgent need whereby different technologies were developed and integrated into the waste cycle all over the world. One ofthe most used technologies is the thermal drying ofthe sludge. Thermally dried sewage sludge has interesting properties that allow its use as an alternative fue!, but also needs some consideration from the point of view of its safe operation.The aim ofthis study was the research on the flammability properties of sewage sludge, including ignition sensitivity, explosion severity, thermal sensitivity and thermal stability. Furthermore relationships among those properties and composition parameters have been determined, added to the study of their variation depending on their origin or season. Finally, properties related to spontaneous combustion were determined. To study these relationships and characteristics sludge samples were selected from different locations in Spain and taken during different seasons.

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“…MIE of clouds of fibers dispersed in air were determined with the use of modified Hartmann tube by Marmo and Cavallero [16]. The study was also conducted to determine the ignitability and explosive parameters of several agricultural products commonly stored in silos to assess the risk of ignition and dust explosion [17]. Beloni also conducted MIE experiments for Al powders with nominal particle sizes of 3.0–4.5 μm and 10–14 μm [18].…”

Section: Introductionmentioning

confidence: 99%

Minimum ignition energy for micro and nano flash powders

Azhagurajan¹,

Selvakumar²,

Yasin

2011

Process Safety Progress

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The minimum ignition energy (MIE) of dust clouds is required to assess the electrostatic ignition risk. Recently, the growing number of accidents shows that fire and explosions occurring in fireworks industry are due to electrostatic discharge (ESD). The objective of the this paper is to discuss the various practical concerns during the handling of flash powders of various compositions containing potassium nitrate, sulfur, and aluminum in fireworks. These powders form dust clouds and cause fires and explosions because the MIEs of these dust clouds are very low. This study is carried out with powders of various sizes ranging from micron and nanometer. The measurements are done by using a 1.2-L Hartmann apparatus. The experimental results show that the MIEs for flash powders are in the range from 89.2 to 19.8 mJ for micronand nano-sized particles. The experimental results are given for various changes, such as: electrode gap, electrode material, and dust concentration, dust composition, etc. If the nano flash powder is mixed with micron powders, the MIE is greatly reduced, and it becomes extremely combustible. Therefore, it is imperative for fireworks manufacturers, or anyone handling these dusts, to take precautionary measures to prevent fires and explosions involving ESDs.

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Determination of parameters used to prevent ignition of stored materials and to protect against explosions in food industries

Cited by 38 publications

References 15 publications

Experimental determination of self-heating and self-ignition risks associated with the dusts of agricultural materials commonly stored in silos

Experimental determination of self-heating and self-ignition risks associated with the dusts of agricultural materials commonly stored in silos

Flammability properties of thermally dried sewage sludge

Minimum ignition energy for micro and nano flash powders

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