A novel technique of reduce order modelling without static correction for transient flow of non-isothermal hydrogen-natural gas mixture

Abstract

In this effort towards zero carbon emission of energy generation, Hydrogen Natural Gas Mixture (HCNG) is considered as energy source. This paper focuses on transient flow of HCNG in a pipelines under non-isothermal condition, using a modern technique of Reduced Order Modelling (ROM) technique. The effect of mass ration, body force and pipeline environmental temperature profile is investigated. The pipeline surrounding temperature effect HCNG flow parameters as shown in the results. The increase in hydrogen lead to hold up, variation on pressure and celerity wave. Good agreement is observed with new method and the usual reduced order method from the solutions published. The results presented give good agreement with experimental results and the new develop model improves on the accuracy. Keywords: Hydrogen-natural gas, Heat flux, Mass ratio, Transient, ROM