Models for minimum ignition temperature of organic dust clouds

1997 ◽  
Vol 20 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Manju Mittal ◽  
Barun Kumar Guha
Keyword(s):  
Ignition Temperature ◽  
Organic Dust ◽  
Dust Clouds ◽  
Minimum Ignition Temperature

Experimental Analysis of Minimum Ignition Temperature of Dust Cloud Obtained from Thermally Modified Spruce Wood

2014 ◽  
Vol 919-921 ◽  
pp. 2057-2060
Author(s):  
Jaroslav Zigo ◽  
Peter Rantuch ◽  
Karol Balog
Keyword(s):  
Ignition Temperature ◽  
Dust Cloud ◽  
Pressure Rise ◽  
Dust Sample ◽  
Air Pressure ◽  
Sample Weight ◽  
Dust Clouds ◽  
Spruce Wood ◽  
Minimum Ignition Temperature

This article deals with study of minimum ignition temperature (MIT) of thermally modified spruce dust. Dust of several species of spruce was mixed, sieved, dried and subjected to Thermo-S temperature programme. Samples of dust (200 250 μm) were tested in Goldbert-Greenwald furnace apparatus for determination of the MIT of dust clouds. The influence of air pressure and sample weight to the MIT was studied. The results show that the MIT of thermally modified spruce dust gradually decreases as the sample weight and air pressure rise. The lowest value of MIT (470 °C) was measured, when the air pressure was 50 kPa and the sample weight 0,5 g. To reach even lower values of MIT (˂468 °C), the air pressure should gradually rise to approx. 42 46 kPa and the weight of dust sample should be approx. 0,46 0,53 g.

scholarly journals Experimental Study Of Minimum Ignition Temperature Of Spent Coffee Grounds

2015 ◽  
Vol 10 (2) ◽  
pp. 1-7
Author(s):  
Igor Wachter ◽  
Karol Balog ◽  
Hana Kobetičová ◽  
Aleš Ház
Keyword(s):  
Ignition Temperature ◽  
Dust Cloud ◽  
Scientific Paper ◽  
Spent Coffee Grounds ◽  
Hot Plate ◽  
Dust Layer ◽  
Dust Clouds ◽  
Coffee Grounds ◽  
High Layer ◽  
Minimum Ignition Temperature

Abstract The aim of this scientific paper is an analysis of the minimum ignition temperature of dust layer and the minimum ignition temperatures of dust clouds. It could be used to identify the threats in industrial production and civil engineering, on which a layer of combustible dust could occure. Research was performed on spent coffee grounds. Tests were performed according to EN 50281-2-1:2002 Methods for determining the minimum ignition temperatures of dust (Method A). Objective of method A is to determine the minimum temperature at which ignition or decomposition of dust occurs during thermal straining on a hot plate at a constant temperature. The highest minimum smouldering and carbonating temperature of spent coffee grounds for 5 mm high layer was determined at the interval from 280 °C to 310 °C during 600 seconds. Method B is used to determine the minimum ignition temperature of a dust cloud. Minimum ignition temperature of studied dust was determined to 470 °C (air pressure - 50 kPa, sample weight 0.3 g).

Minimum ignition temperature of aluminium dust clouds via the Godbert–Greenwald furnace

2019 ◽  
Vol 129 ◽  
pp. 176-183 ◽  
Author(s):  
Jun Deng ◽  
Jiao Qu ◽  
Qiuhong Wang ◽  
Xiaowei Zhai ◽  
Yang Xiao ◽  
...  
Keyword(s):  
Ignition Temperature ◽  
Dust Clouds ◽  
Minimum Ignition Temperature

Determination of Ignition Temperature of Organic Dust Layers

2013 ◽  
Vol 690-693 ◽  
pp. 1469-1472 ◽  
Author(s):  
Ivana Turekova ◽  
Zuzana Turňová ◽  
Jozef Harangozó ◽  
Ivana Kasalova ◽  
Tomáš Chrebet
Keyword(s):  
Ignition Temperature ◽  
Organic Dust ◽  
Qualitative Comparison ◽  
Dust Layer ◽  
Different Types ◽  
Minimum Ignition Temperature ◽  
Precautionary Measures ◽  
Fire Characteristics

Fire characteristics of wood dusts serve for qualitative comparison of combustibility and explosibility, for suggesting precautionary measures, for predicting consequences of fires and explosions. Setting of given characteristics by calculation is not possible yet. Therefore the most reliable results are set by experiment. The article deals with the testing of the minimum ignition temperature depending on the different types of dust layer and different heights of surface.

scholarly journals Combined Effect of Dispersion Pressure and Concentration on Minimum Ignition Temperature of Corn Dust using Response Surface Methodology – Preliminary Investigation

2021 ◽  
Vol 287 ◽  
pp. 03006
Author(s):  
Ushtar Arshad ◽  
Azizul Buang ◽  
Khafnini Khanafiah
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ignition Temperature ◽  
Preliminary Investigation ◽  
Future Research ◽  
Dust Clouds ◽  
Minimum Ignition Temperature ◽  
The Difference ◽  
Conducive Environment ◽  
Good Agreement

Corn dust is a significantly energetic dust and widely used substance in food processing industries. It not only poses dust hazards like suffocation or lungs related issues to the exposed workers but also is highly combustible under a conducive environment. In this study, the minimum ignition temperature (MIT) of corn dust clouds was evaluated at varying combinations of dispersion pressure and concentration using a Godbert–Greenwald (G–G) furnace. A response surface was generated using design expert as a tool for the application of response surface methodology (RSM). The predicted R2 and adjusted R2 are reasonably in close agreement as the difference is less than 0.2. The predicted surface is found to be in good agreement with the experimental results. However, as this is a preliminary study, the model will be improved in future research.

Minimum ignition temperature of carbonaceous dust clouds in air with CH4/H2/CO below the gas lower explosion limit

Fuel ◽  
2020 ◽  
Vol 264 ◽  
pp. 116811
Author(s):  
Xin Tan ◽  
Martin Schmidt ◽  
Peng Zhao ◽  
Aizhu Wei ◽  
Weixing Huang ◽  
...  
Keyword(s):  
Ignition Temperature ◽  
Dust Clouds ◽  
Explosion Limit ◽  
Minimum Ignition Temperature

Minimum Ignition Temperature of Dusts, Gases, and Solvents Hybrid Mixtures

2016 ◽  
Vol 188 (11-12) ◽  
pp. 1693-1704 ◽  
Author(s):  
Emmanuel Kwasi Addai ◽  
Dieter Gabel ◽  
Haider Ali ◽  
Ulrich Krause
Keyword(s):  
Ignition Temperature ◽  
Minimum Ignition Temperature ◽  
Hybrid Mixtures
Sign in / Sign up

Export Citation Format

Share Document