Dynamic simulation of hazard analysis of radiations from LNG pool fire

Sun, Biao; Guo, Kaihua; Pareek, Vishnu

doi:10.1016/j.jlp.2015.04.010

Cited by 31 publications

(8 citation statements)

References 40 publications

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“…또한 액적의 복사열 흡수 (Absorption) 및 산란(Scattering)를 통해 복사열을 감쇠시 키거나, 연기에 포함된 독성물질을 액적에 용해 및 흡착시 키는 세정효과(Scrubbing effect)의 추가적인 기능을 포함 하고 있다 (1,2) . 최근 물 분무가 갖는 복사열 감쇠효과를 적 용하여 해안의 오일/가스에 의한 화염을 제어하거나, 화재 로부터 가스 저장탱크와 같은 산업 위험설비의 안전성을 확보하기 위한 복사열 차폐(Thermal radiation shield)로서 의 다양한 응용이 시도되고 있다 (3)(4)(5) . 화재로부터의 복사열 을 감쇠시키기 위한 물 분무의 패턴은 스프링클러 헤드를 이용한 원뿔 형상과 드렌처(Drencher) 헤드를 이용한 수막 은 복사열 감쇠를 위한 최적의 액적 크기에 관한 이 론적 연구를 수행하였으며, Tseng and Viskanta (8) …”

Section: 서 론unclassified

An Experimental Study on the Effects of the Shape of a Drencher Head on the Characteristics of a Water Curtain

Lee¹,

Kim²,

Lee³

et al. 2016

Fire Science and Engineering

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The effects of the shape of a drencher head on the flow characteristics and radiation attenuation of a water curtain, in order to prevent a fire spread, were experimentally studied. The distance (h) between the orifice exit and deflector and the diameter of deflector (D) were varied as the shape factors of the head, with the same orifice diameter (d). It was found that an increase in h leads to an increase in the water flow rate and spray angle. However, the change in the spray angle decreases with increasing D. Increasing D brings about a subtle increase in the water flow rate and a significant decrease in the spray angle. A larger value of D makes it possible to produce a flatter pattern of the water curtain, but reduces the uniformity of the droplets inside the spray angle. The mean droplet diameter decreases significantly as the operating pressure increases. However, the variation in the shape of the drencher head does not significantly affect the change in the mean diameter at the same operating pressure. Finally, it was found that the radiation attenuation afforded by the water curtain at the same operating pressure was affected by water flow rate and droplet uniformity, which were determined by h and D, respectively.

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Section: 서 론unclassified

An Experimental Study on the Effects of the Shape of a Drencher Head on the Characteristics of a Water Curtain

Lee¹,

Kim²,

Lee³

et al. 2016

Fire Science and Engineering

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“…The unavailability of sufficient storage facility forced the refining industry to shut down their plants and wait for petroleum products' upliftment to ensure adequate ullage for plant rundowns [7]. The said emergency turned down the petroleum refining industries to enhance the storage capacity of their respective tank farms and other associated terminal storage depots in addition to the rapid growth of other hazardous chemical industries [8][9][10]. The race towards maximizing the capacity comprised of high capital incentives may proceed towards the creation of safety-critical firefighting system design-related issues [11].…”

Section: Introductionmentioning

confidence: 99%

A comprehensive numerical design of firefighting systems for onshore petroleum installations

Shafiq

Hussain

Shafique

et al. 2021

Korean J. Chem. Eng.

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Petroleum facilities containing welded steel bulk flammable liquid product storage tanks possess sundry fire hazards inherent to the facility. These installations urgently require indigenous efficient firefighting systems. So, the efficient design of firewater and firefighting foam system is dynamic in controlling fire-related emergencies. The paper deals with the in-depth conceptualization of the design and analysis of firefighting systems for a typical petroleum handling, processing and storage facility in compliance with international standards. The study is aimed to formulate the elementary technique for designing an optimized firefighting system. The proposed objective was achieved by considering an ideal tank farm site that is most commonly located in a range of terminal stations, pumping stations, petroleum refineries, well sites, etc. Sufficient illumination was enumerated on the standardized classification of the liquid fuel product with respect their flammability range. Special guidelines regarding firefighting system design basis were defined and an optimized firefighting and foam system design was developed. Moreover, sufficient limitations that must be considered during the firefighting of huge tank fires are discussed. This comprehensive numerical design philosophy offers a simple and wide-ranging guide to industrial practitioners by formulating the principles for industrial firefighting system design.

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“…Di and Chen [21] studied the development law of the flame in the set LNG fire scene. Furthermore, the hazardous area caused by LNG leakage accident, e.g., fire, explosion, and the like, can be simulated [22][23][24]. Based on hazardous features and main dangerous accidents, the consequence simulation and quantitative assessment on various accident can be obtained [25] and used to assess the risk of LNG storage system [26].…”

Section: Introductionmentioning

confidence: 99%

Impact Assessment of Flammable Gas Dispersion and Fire Hazards from LNG Tank Leak

Luo

et al. 2021

Mathematical Problems in Engineering

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This study conducts an impact assessment of flammable gas dispersion and fire hazards from LNG tank leak. The release source model is used to estimate LNG release rate. A CFD (computational fluid dynamics) based 3D model is established to simulate dispersion behavior of flammable gas from the phase transformation of LNG. Subsequently, a FDS (fire dynamics) based model is built to simulate the pool fire due to LNG tank leak. The impact of gas dispersion and fire on personnel and assets is assessed based on simulation results, which can provide a theoretical basis and method support for major accident assessment of tank leakage in large LNG receiving station. The results show that the dispersion of flammable gas from LNG tank leak has an obvious stage characteristic. The flammable gas reached a steady state around 300 s, and the corresponding coverage area is about 16250 m2. The pool fire simulations indicate that the steady flame is formed at 20 s. The flames flow along the wind, and the maximum temperature of the fire reaches 670°C, and the maximum thermal radiation reaches 624 kW/m2. According to the fire damage criteria, the pool fire from LNG tank leak may pose a serious threat on the safety of adjacent assets and personnel.

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Dynamic simulation of hazard analysis of radiations from LNG pool fire

Cited by 31 publications

References 40 publications

An Experimental Study on the Effects of the Shape of a Drencher Head on the Characteristics of a Water Curtain

An Experimental Study on the Effects of the Shape of a Drencher Head on the Characteristics of a Water Curtain

A comprehensive numerical design of firefighting systems for onshore petroleum installations

Impact Assessment of Flammable Gas Dispersion and Fire Hazards from LNG Tank Leak

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