New Opportunities for Assessing the Ignition Probability of Low Current Circuits Designed for Use in Explosive Atmospheres

Darie, Marius; Ionescu, Jeana; Burian, Sorin; Csaszar, Tiberiu; Moldovan, Lucian

doi:10.30638/eemj.2012.152

Cited by 6 publications

(3 citation statements)

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“…The explosion risk involved by the presence of technical equipment in areas endangered by the presence of flammable substances is manifested through many sources of risk. The spark ignition [1] is caused by electrical equipment, electrostatic discharges and mechanical impact. The mixtures of air with flammable substances could be ignited also, by hot surfaces [2].…”

Section: Explosion Riskmentioning

confidence: 99%

Summary of requirements for the use of cells and batteries in potentially explosive atmospheres

et al. 2021

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The use of wireless equipment in the industrial field is a modern trend both in terms of communication equipment, monitoring of gas concentration, environment or installations but also for remote controls and power backup. The energy source for such equipment are cells and batteries. The first part of the article addresses the risk of explosion and the peculiarities of flammable atmospheres. The second part was dedicated to the presentation of the types of cells suitable for use in explosive atmospheres. The last part presents a summary of the specific requirements of cells and batteries regarding the explosion protection.

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Section: Explosion Riskmentioning

confidence: 99%

Summary of requirements for the use of cells and batteries in potentially explosive atmospheres

et al. 2021

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“…The presence of technical equipment in atmospheres containing flammable substances may give rise to a risk of ignition due to electrical or thermal effects. On the other hand, many sources of ignition cause the risk of explosion in atmospheres with flammable substances, such as mechanical sparks, electric sparks [8][9][10], ultrasound, exothermic chemical reactions, hot surfaces [11][12][13], static electricity, etc.…”

Section: Introductionmentioning

confidence: 99%

Temperature tests of cells - uncertainty considerations

Darie,

Marcu,

Colda

et al. 2024

MATEC Web Conf.

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The paper presents the estimation of the uncertainty in the measurement of the maximum surface temperature of voltaic cells exposed to specific tests for the type of intrinsic safety protection. For this purpose, equivalent test conditions using the short-circuit test stand are considered. In the first part, the risk of explosion is presented and it is mentioned that the risk of explosion arises due to the presence of technical equipment in areas where flammable substances may be present. In the second part, the requirements for testing cells are briefly presented. It also introduces the configuration of the stand used for testing. The third part of the paper was devoted to presenting and discussing the results obtained. The analysis of the test results revealed that the measurement uncertainty depends on the test conditions and the application of the temperature sensors. This result would help estimate the surface temperature of cells considering the favorable conditions in terms of minimum uncertainty.

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“…The risk of explosion involved by the presence of technical equipment in potentially explosive atmospheres could be determined by spark ignition [8,9] of electrical equipment, electrostatic discharge, and mechanical impact, etc. [10,11].…”

Section: Introductionmentioning

confidence: 99%

On the estimation of maximum surface temperature for cells

Darie¹,

Csaszar²,

Andriș³

et al. 2022

MATEC Web Conf.

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In paperwork is presented the estimation of the maximum surface temperature of cells exposed to specific tests for the intrinsic safety type of protection. Particularly, it presents the thermal resistance of the short-circuit test-stand results. The first part introduces the aspects regarding the risk of explosion. The risk of explosion occurs due to the presence of technical equipment in areas where flammable substances may occur. The second part itemizes the requirements for the testing of cells. Also, is introduced the stand configuration and performance aspects. The third part of the paper has been dedicated to the presentation and the discussion of the obtained results. The analysis of the test results highlighted the range of thermal resistance. This result could help estimation of the surface temperature of cells based on their capacity and internal resistance. The convection coefficients were determined. The process of deep discharge destroys the inner electrochemical of the cell system. Therefore, it permits energy recovery lower than a fraction of a tenth.

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New Opportunities for Assessing the Ignition Probability of Low Current Circuits Designed for Use in Explosive Atmospheres

Cited by 6 publications

References 0 publications

Summary of requirements for the use of cells and batteries in potentially explosive atmospheres

Summary of requirements for the use of cells and batteries in potentially explosive atmospheres

Temperature tests of cells - uncertainty considerations

On the estimation of maximum surface temperature for cells

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