Following the tendency of sustainable development, compressed natural gas as an alternative fuel has been expanded applied in transportation sector these years. Although several studies on life cycle are quite comprehensive for passenger vehicles, it is problematic to apply results heavy-duty electric hybrid trucks. This study applies Well-to-Wheel methodology fuel. The optimized truck model bu...

use of zinc and iron oxide are common in the desulfurization process from natural gas. in thisresearch, after determinations of the size and specifications through tem and xrd for each of the metaloxides, two different size ratios were used, 0.66 for zinc oxide and 0.142 for iron oxide. further, absorption of sulfur compounds in gas (hydrogen sulfide (h2s), carbonyl sulfide (cos), methyl mercap...

Natural gas demand in the United States has been increasing for the last 15 years and is projected to grow substantially in the next 20 years. Meeting this growing demand will require an accompanying increase in supply, which is expected to come mostly from additional production in the United States. The prospect of increased U.S. production has led to ongoing efforts both to better assess our ...

The Haynesville Shale is a subsurface rock formation located beneath the Northeast Texas/Northwest Louisiana border near Shreveport. This formation is estimated to contain very large recoverable reserves of natural gas, and during the two years since the drilling of the first highly productive wells in 2008, has been the focus of intensive leasing and exploration activity. The development of na...

The process of formation and deposition gas hydrates on the walls a well during its joint operation with reservoir heat exchange environment is modeled. problem reduced to solving differential equations describing non- isothermal flow an imperfect both in porous medium well, propagation rocks appropriate coupling conditions. It shown that for wells temperature significantly exceeding equilibriu...

In this work, studies of underground gas storage (UGS) were performed on a partially depleted, naturally fractured gas reservoir through compositional simulation. Reservoir dynamic model was calibrated by history matching of about 20 years of researvoir production. Effects of fracture parameters, i.e. fracture shape factor, fracture permeability and porosity were studied. Results show...

The significant penetration rate of wind turbines in power systems made some challenges in the operation of the systems such as large-scale power fluctuations induced by wind farms. Gas-fired plants with fast starting ability and high ramping can better handle natural uncertainties of wind power compared to other traditional plants. Therefore, the integration of electrical and natural gas syste...

Compressed natural gas as an alternative fuel obviously has a great potential to reduce the greenhouse emissions. Although several studies on life cycle are quite comprehensive for passenger vehicles, it is problematic apply these results heavy-duty electric hybrid trucks. This paper describes Well-to-Wheel methodology environmental impact from production its final application. The CO2 equivale...