Amir Ebrahimi-Moghadam

TL;DR: In this paper, the entropy generation minimization approach has been employed to optimize heat transfer and fluid flow within a wavy channel, and a numerical method has been built to compute entropy generation rate in a sinusoidal wavy-wall channel with copper-water (Cu-water) nanofluid flow.

TL;DR: In this paper, an under-ground gas pipeline is numerically modeled considering the surrounding soil as a porous medium and two-and three-dimensional models are used to investigate the gas leak through a hole intentionally made on the pipe.

TL;DR: In this article, the effect of hydrogen addition on the thermo-physical properties of natural gas (NG) from gas fields with different compositions was investigated, and it was observed that hydrogen injection into NG increases the upper and lower flammability limits and compressibility factor, while both lower and higher heating values, lower and high Wobbe indices, along with the relative density decrease with hydrogen concentration increase.

TL;DR: In this article, a trigeneration district energy system (TDES) is designed and evaluated from energy, exergy, exergoeconomic, and exerogoenvironmental points-of-view.

TL;DR: In this paper, a numerical method is developed to investigate leakage in above-ground and buried urban distribution natural gas pipelines, where the natural gas as working fluid is treated as an ideal gas and soil considered as a porous zone.