A numerical method is developed to investigate leakage in above-ground and buried urban distribution natural gas pipelines. The main aim is to develop a few equations to estimate leakage form above-ground and buried urban ...

The main purpose of this study is to develop accurate equation for predicting methane emission into the environment during natural gas (NG) purging process. The process is carried out regularly in NG pressure reducing ...

The use of nanofluids as working fluid is one of the represented methods in efficiency enhancement of various systems. One of the most important subjects in nanofluid utilization is finding the optimal conditions. In this ...

The natural gas speed of sound (SoS) is needed for flowmeters calibration using sonic nozzles. To determine SoS of real gases, the compressibility factor (sometimes called Z-factor) should be calculated firstly. Historically, ...