Analysis of hazard areas associated with high-pressure natural-gas pipelines |
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| Institution: | 1. Institute of Gas Safety Technology, Korea Gas Safety Corporation, 332-1, Daeya-dong, Shihung-shi, Kyunggi-do, 429-712, South Korea;2. Department of Chemical Engineering, Korea Polytechnic University, Jungwang-dong, Shihung-shi, Kyunggi-do, 429-793, South Korea;1. Department of Engineering and Public Policy, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA;2. Department of Mechanical Engineering and Department of Engineering and Public Policy, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA;3. Department of Social and Decision Sciences, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, USA;4. Dipartimento di Scienze Economiche, Aziendali e Statistiche, Università degli Studi di Palermo, Viale delle Scienze, Edificio 13, I-90128 Palermo, Italy;1. College of Pipeline and Civil Engineering in China University of Petroleum (East China), Qingdao 266580, China;2. Shandong Key Laboratory of Oil-Gas Storage and Transportation Safety, Qingdao 266580, China;3. Guangxi Colleges and Universities Key Laboratory of Beibu Gulf Oil and Natural Gas Resource Effective Utilization, Qinzhou University, Qinzhou 535011, China;1. Lithuanian Energy Institute, Breslaujos str. 3, LT-44403 Kaunas, Lithuania;2. Vytautas Magnus University, Vileikos str. 8, LT-44404 Kaunas, Lithuania;3. Commissariat à l′Energie Atomique et aux Energies Alternatives, DANS/DM2S/SERMA, CEA Saclay, Bât. 470, F-91191 Gif sur Yvette Cedex, France;1. School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, SiChuan 610500, China;2. Petroleum Engineering Technology Research Institute of Sinopec Zhongyuan Oilfield, Puyang, Henan 457000, China;1. MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, 102249, China;2. The College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing, 102249, China |
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| Abstract: | The rupture of a high-pressure natural-gas pipeline can lead to outcomes that can pose a significant threat to people and property in the immediate vicinity of the failure location. The dominant hazards are thermal radiation from sustained fire and collapse of buildings from explosion inside or in a partially confined area enclosed by buildings. A simplified equation has been developed that relates the diameter, the operating pressure and the length of pipeline to the size of the affected area in the event of a full-bore rupture. The equation is based on release rate, gas jet and heat flux from fire to estimate the hazard area. Hazard area is directly proportional to the operating pressure raised to a half power, and to the pipeline diameter raised to five-fourths power, but inversely proportional to the pipeline length raised to a quarter power. The simplified equation will be a useful tool for safety management of high-pressur natural-gas pipelines. |
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