Evidence map›Paper›PMID 38379089›Full record

ArticleScientific reports2024

Numerical investigations of AC arcs' thermal characteristics in the short gap of copper-cored wires.

Yu Li, Rencheng Zhang, Kai Yang, Yufan Qi, Ran Tu

Abstract read
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In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Yu LiKey Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment, Huaqiao University, Xiamen, 361021, People's Republic of China.
Rencheng ZhangKey Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment, Huaqiao University, Xiamen, 361021, People's Republic of China. phzzrc@hqu.edu.cn.
Kai YangKey Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment, Huaqiao University, Xiamen, 361021, People's Republic of China.
Yufan QiKey Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment, Huaqiao University, Xiamen, 361021, People's Republic of China.
Ran TuKey Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment, Huaqiao University, Xiamen, 361021, People's Republic of China.

Funding

China Postdoctoral Science Foundation No. 2021M691861Fundamental Research Funds for the Central Universities No. ZQN-1001National Natural Science Foundation of China NO. 52076084National Natural Science Foundation of China No. 52175508
6 · The paper itself

Abstract

Excessive alternating current (AC) arcs generated in electric systems will accumulate heat and easily cause fire. This paper studies the thermal characteristics of different numbers of AC arc plasma generated in a short gap of copper-cored wires in the air. The number of AC arcs is controlled in the AC arc experiment and an infrared thermal imager measures the temperature change at the specified position. Based on magnetohydrodynamics (MHD), a two-dimensional axisymmetric AC arc discharge numerical simulation model is established. The volt-ampere characteristic of the AC arc is used to solve the MHD simulation model to obtain the same 'zero current' characteristics as the real AC arc in the experiment. A large amount of heat accumulates in the electrode gaps when the arc generation, and then the heat dissipates in the 'zero current' stage. The continuously generated arc makes the temperature higher. The volume of the space area with a temperature higher than 10,000 K increases with the arc current, but is unrelated to the number of arcs. The volume of the space area with a temperature higher than 524.15 K and the temperature on the electrode are both positively correlated with the number of AC arcs and arc current. The results of this study can provide a reference for the detection standard of AC arc faults and the prevention of electrical fire.

Identifiers

PMID38379089
PMCPMC11310418

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.