开放式厨房与闭式厨房燃气泄漏模拟对比研究  

Comparative study of gas leakage simulation between open kitchen and closed kitchen

作　　者：张增刚[1] 商铭恒 陈云丽 ZHANG Zenggang;SHANG Mingheng;CHEN Yunli(School of Thermal Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学热能工程学院,山东济南250101

出　　处：《山东建筑大学学报》2021年第3期25-31,共7页Journal of Shandong Jianzhu University

摘　　要：开放式厨房中的燃气泄漏后,研究室内不同时间段的危险程度和燃气扩散规律,可以为相关建筑规范的制定及开放式厨房的推广提供理论依据。文章基于仿真模拟软件,数值模拟了采用开放式厨房和闭式厨房的同一房屋的燃气泄漏,得到了室内燃气泄漏扩散的一般规律。结果表明:发生燃气泄漏后,120 min时闭式厨房内就会达到爆炸下限;开放式厨房之外区域燃气体积分数较高,扩散的区域更大;240 min内,开放式厨房比闭式厨房安全,但如果长时间泄漏,开放式厨房发生爆炸的可能性将会更大。After gas leakage occurs in open kitchens,research on the degree of danger and gas diffusion laws in the room at different time periods will help provide a theoretical basis for the formulation of regulations and the promotion of modern kitchens.Based on the Fluent simulation software,the paper performs numerical simulation of gas leakage in the same house with open kitchen and closed kitchen respectively,and obtains the general law of indoor gas leakage and diffusion.The results show that when a gas leak occurs,the lower explosive limit will be reached at 120 minutes in the closed kitchen.The gas concentration inside and outside the open kitchen is higher,and the diffusion area is larger.Within 240 minutes,the open kitchen is safer than the closed kitchen.But if it leaks for a long time,the possibility of explosion in the open kitchen will be greater.

关 键 词：开放式厨房 闭式厨房 室内燃气泄漏 体积分数分布规律 

分 类 号：TU996[建筑科学—供热、供燃气、通风及空调工程]