Multiple failures of API 5L X42 natural gas pipe: Experimental and computational analysis

The article describes algorithm for optimization of discrepancies in natural gas supply to consumers. Numerical monitoring makes it possible to obtain computational estimates of actual gas deliveries over given time spans and to estimate their difference from corresponding values reported by gas consumers. Mathematical analysis of the discrepancy is based on a statement and numerical solution of identification problem of a physically proved gas dynamics mode of natural gas transmission through specified gas distribution networks. The identified mode parameters should have a minimum discrepancy with field measurements of gas transport at specified reference points of the simulated pipeline network.

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Multiple failures of API 5L X42 natural gas pipeline

Engineering Failure Analysis ◽

10.1016/j.engfailanal.2013.02.012 ◽

2013 ◽

Vol 31 ◽

pp. 421-429 ◽

Cited By ~ 12

Author(s):

Z.A. Majid ◽

R. Mohsin

Keyword(s):

Natural Gas ◽

Gas Pipeline ◽

Multiple Failures ◽

Natural Gas Pipeline

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Experimental and Computational Analysis of Diesel-Natural Gas RCCI Combustion in Heavy-Duty Engines

10.4271/2015-01-0849 ◽

2015 ◽

Cited By ~ 22

Author(s):

Mufaddel Dahodwala ◽

Satyum Joshi ◽

Erik Koehler ◽

Michael Franke ◽

Dean Tomazic

Keyword(s):

Natural Gas ◽

Computational Analysis ◽

Heavy Duty

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Computational Investigation of Air-Heater Performance Using Natural Gas, Biogas, and Syngas as Fuels

Journal of Thermal Science and Engineering Applications ◽

10.1115/1.4026813 ◽

2014 ◽

Vol 6 (3) ◽

Author(s):

Gerardo Diaz

Keyword(s):

Natural Gas ◽

Alternative Fuels ◽

Fossil Fuels ◽

Computational Analysis ◽

Industrial Equipment ◽

Computational Investigation ◽

Anaerobic Digesters ◽

Flow Rates ◽

Air Heater ◽

Order Of Magnitude

Alternative fuels, mainly generated from waste, constitute a possible option to reduce the demand for fossil fuels. For instance, biogas can be obtained from cow manure using anaerobic digesters, a technology that is currently being implemented in several dairy farms. Synthesis gas, also known as syngas, is a mixture of hydrogen and carbon monoxide that may have fractions of other components such as nitrogen, carbon dioxide, and methane, depending on the gasifying method used. However, before a change to alternative fuels can be made, the performance of common appliances and industrial equipment using these fuels needs to be investigated. In this paper, a computational analysis of the performance of an air heater using natural gas, biogas, and syngas is performed. The results show that alternative fuels with heat values almost an order of magnitude lower than natural gas can be used in commercial air heaters with only minor variations in thermal performance. The main drawback is the higher flow rates required for alternative fuels, specially for syngas.

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