کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
588107 1453336 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation on Influencing Factors of air curtain systems barrier efficiency for mine refuge chamber
ترجمه فارسی عنوان
بررسی تجربی بر روی عوامل موثر بر راندمان موانع سیستم پرده هوا برای اتاق پناه معدن
کلمات کلیدی
حادثه معدن ذغال سنگ ؛ اتاق پناه؛ کپسول نجات؛ پرده هوا؛ گاز مضر. اثر مانع
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی


• Experimental investigation on air curtain based on the door frame of mine refuge chamber for the first time.
• Air curtains installed on two sides behind the blast wall had a better barrier effect than the other position.
• For pipeline air curtain, aperture 1 mm and hole pitch 15 mm is more appropriate.
• For air knife, gap width should be in the range of 0.1–0.2 mm.
• Air knife and pipeline air curtain had no appreciable difference in barrier efficiency.

Air curtain systems for mine refuge chambers prevent harmful gases in the tunnel from entering the chambers, but their barrier efficiency is affected by their structural parameters, installation location and air flow angle as well as the size of the chamber door. Previous studies focused on air curtain systems installed on the top of the door frames of the mine rescue capsule, but no studies have investigated air curtain systems installed on two or three sides of the door frames. To improve the barrier efficiency of air curtain systems for refuge chambers, this study conducted an experimental investigation of the effects of the structural parameters, installation location, and air flow angle on the barrier efficiency for a constant size of the door frame. The results demonstrate that air curtain systems with air curtains installed on two sides of the door frame behind the door wall that ejected air parallel to the door frame provided a relatively good barrier effect; an air curtain system that used pipeline air curtains with a nozzle diameter of 1 mm and a nozzle distance of 15 mm exhibited a relatively good barrier effect and a barrier efficiency of 55–60%. In air curtain systems that use air knives, the air knife gap should be 0.1–0.2 mm wide. Under reasonable parameters and installation conditions, there was no significant difference between the barrier effects against CO2 of air curtain systems that use pipeline air curtains and those that use air knives.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Safety and Environmental Protection - Volume 102, July 2016, Pages 534–546
نویسندگان
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