Energetic and exergoeconomic evaluation of a stig cycle and cooled inlet air gas turbine powered by mixtures of natural gas and H in tropical climates.

Using pure hydrogen (H) or mixtures of H and natural gas in gas-fired power plants represents a viable route to decarbonize electric power generation. This study models a system designed to cool the air at the compressor inlet to 8.8 °C, achieve a flue gas oxygen percentage of 11.

Numerical simulation of slug flow in pipelines using drift flux constitutive equations for gas-viscous oil two-phase flow.

Transient simulation of multiphase flow in pipes has been performed using Two-Fluid Model and Drift-Flux Model. The main advantage of the Drift-Flux Model is the reduced number of differential equations, which results in a lower computational time. However, the accuracy of the model depends on a suitable constitutive equation for the velocity of the dispersed phase, commonly, the gas phase.