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http://dx.doi.org/10.7842/kigas.2022.26.4.27

Analysis of the Damaged Range Caused by LPG Leakage and Vapor Clouds Considering the Cold Air Flow  

Gu, Yun-Jeong (Corporate Cooperation Center, Korea Electronics Technology Institute)
Song, Bonggeun (Institute of Industrial Technology, Changwon National University)
Lee, Wonhee (Smart Manufacturing Research Center, Korea Electronics Technology Institute)
Song, Byunghun (Smart Manufacturing Research Center, Korea Electronics Technology Institute)
Shin, Junho (Smart Manufacturing Research Center, Korea Electronics Technology Institute)
Publication Information
Journal of the Korean Institute of Gas / v.26, no.4, 2022 , pp. 27-35 More about this Journal
Abstract
When LPG leaks from the storage tank, the gas try to sink to the ground because LPG is heavier than air. The gas easily creates vapor clouds causing aggressive accidents in no airflow. Therefore, It is important to prevent in advance by analyzing the damaged range caused from LPG leakage and vapor clouds. So, this study analyzed the range of damaged by LPG leakage and vapor clouds with consideration of the cold air flow which is generated by the topographical characteristics and the land use status at night time in the Jeju Hagari. As a result of the cold air flow using KLAM_21, about 2 m/s of cold air was introduced in from the southeast due to the influence of the terrain. The range of damaged by LPG leakage and vapor cloud was analyzed using ALOHA. When the leak hole size is 10 cm at the wind speed of 2 m/s, the range corresponding to LEL 60 % (12,600 ppm) was 61 m which range is expected to influence in nearby residential areas. These results of this study can be used as basic data to prepare preventive measures of accidents caused by vapor cloud. Forward, it is necessary to apply CFD modeling such as FLACS to check the vapor cloud formation due to LPG leakage in a relatively narrow area and to check the cause analysis.
Keywords
LPG leakage; vapor cloud; cold air; damaged range; gas flow; GIS; ALOHA; KLAM_21;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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