Analysis of Natural Gas Pipeline Network in Critical State: The Effect of Important Parameters in Critical State

Due to the cold air in the cold season, natural gas consumption will be greater than the standard mode and much higher than the normal. In this situation for networks comes a critical state, consumption increased as well as pressure reduced for natural gas, this condition has always been one of the main problems to deliver natural gas to various locations. In this study, a natural gas pipeline network in critical condition has been investigated. The proposed method for the analysis of pipeline network compared with previous studies, the validation results show the accuracy of 0.37% for the proposed method. The effect of important parameters on the pipeline network in critical state such as: friction factor and natural gas composition have been studied. The results show, the friction factor has a great impact on the natural gas pipeline network, also natural gas with higher molecular weights have less pressure drop in the all of natural gas pipeline network’s nodes.