Yu. N. Shebeko

Bio: Yu. N. Shebeko is an academic researcher from Russian Ministry of the Emergency Situations. The author has contributed to research in topics: Combustion & Hydrogen. The author has an hindex of 9, co-authored 92 publications receiving 471 citations.

Fire and explosion risk assessment for large-scale oil export terminal

Abstract: Now in Russian Federation and other countries large-scale oil terminals (volume of one tank exceeds 100 000 m 3 , total volume of tanks exceeds 300 000 m 3 ) are designed and constructed. Therefore fire safety of such objects becomes a very important task, solution of which is hardly possible without detail fire risk assessment. This study is aimed to a solution of this problem. Potential, individual and social risks were calculated. The potential risk was defined as a frequency of occurrence of hazardous factors of fires and explosions in a given point of space (the so-called risk contours). The individual risk was defined as a frequency of injuring a given person by hazardous factors of fires and explosions. Time of presence of this person in hazardous zones (near the hazardous installation) is taken into account during calculations of the individual risk. Social risk was defined as a dependence of frequency of injuring a given number of people by hazardous factors of fires and explosions on this number. In practice the social risk is usually determined on injuring not less than 10 people. The oil terminal under consideration includes the following main parts: crude oil storage consisting of three tanks of volume 100 000 m 3 each, input crude oil pipeline of diameter 0.6 m, crude oil pumps, output crude oil pipeline of diameter 0.8 m, auxiliary buildings and facilities. The following main scenarios of tank fires have been considered: rim seal fire, pool fire on a surface of a floating roof, pool fire on a total cross-section surface of the tank, pool fire in a dyke, explosions in closed or semiclosed volumes. Fires and explosions in other parts of the terminal are also taken into account. Effects of escalation of accidents are considered. Risk contours have been calculated both for the territory of the terminal and for the neighbouring space. The potential risk for the storage zone is near 10 −4 –10 −5 year −1 , and at a distance 500 m from the terminal the potential risk values do not exceed 10 −6 year −1 . The values of the individual risk for various categories of workers are in the range of 10 −5 –10 −6 year −1 . Because of low number of the workers on the terminal and large distances to towns and villages the social risk value is negligible. These risk values are consistent with practice of the best oil companies, and fire hazard level of the terminal can be accepted as tolerable.

Combustion, Flames and Explosions of Gases

Abstract: ELEVEN years ago appeared the comprehensive monograph entitled “Flame and Combustion in Gases” by Prof. W. A. Bone and D. T. A. Townend, followed a year or two later by “Gaseous Combustion at High Pressures” by Bone, Newitt and Townend. Except for a small volume on "Flame"by 0. C. de C. Ellis and W. A. Kirkby (1936), the subject has not since been treated as a whole in English, until the recent appearance of the work by Bernard Lewis and G. von Elbe now under review. Combustion, Flames and Explosions of Gases By Dr. Bernard Lewis Dr. Guenther von Elbe. (The Cambridge Series of Physical Chemistry.) Pp. xiv + 415. (Cambridge: At the University Press, 1938.) 21s. net.

Study on using hydrogen and ammonia as fuels: Combustion characteristics and NOx formation

Abstract: This paper evaluates the potential of hydrogen (H-2) and ammonia (NH3) as carbon-free fuels The combustion characteristics and NOx formation in the combustion of H-2 and NH3 at different air-fuel equivalence ratios and initial H-2 concentrations in the fuel gas were experimentally studied NH3 burning velocity improved because of increased amounts of H-2 atom in flame with the addition of H-2 NH3 burning velocity could be moderately improved and could be applied to the commercial gas engine together with H-2 as fuels H-2 has an accelerant role in H-2-NH3-air combustion, whereas NH3 has a major effect on the maximum burning velocity of H-2-NH3-air In addition, fuel-NOx has a dominant role and thermal-NOx has a negligible role in H-2-NH3-air combustion Thermal-NOx decreases in H-2-NH3-air combustion compared with pure H-2-air combustion NOx concentration reaches its maximum at stoichiometric combustion Furthermore, H-2 is detected at an air-fuel equivalence ratio of 100 for the decomposition of NH3 in flame Hence, the stoichiometric combustion of H-2 and NH3 should be carefully considered in the practical utilization of H-2 and NH3 as fuels H-2 as fuel for improving burning performance with moderate burning velocity and NOx emission enables the utilization of H-2 and NH3 as promising fuels Copyright (C) 2014 John Wiley & Sons, Ltd