Direct Numerical Simulations of Boundary Layer Stability for Non-ideal Fluids

The process in which a smooth laminar flow transits to a chaotic to a chaotic, turbulent state, is a topic of particular interest in the sectors of energy technology and aerodynamics. To study the different paths that can be followed during the transition process, various tools and methods have been developed. A preliminary investigation of the...

Separation of NOx emissions from Drilling, and Oil and Gas Extraction in the U.S. using Monthly Data from the Ozone Monitoring Instrument

Horizontal drilling and hydraulic fracturing have increased unconventional oil and gas extraction from shale reserves in the U.S. in the last decade, making up more than half of total U.S. oil and gas production at present. This activity results in NOx emissions in the extraction regions that are measurable from space using the Ozone Monitoring...

Near Wellbore Salt Precipitation in Gas Reservoirs

Production wells in gas reservoirs often experience rapid production decline towards the late production stage. In many cases, this behavior can be attributed to salt precipitation in the near wellbore region. Water evaporates in the vicinity of the well bore with pressure drop, leading to an increase in the dissolved salt concentration, causing...

Nitrogen Catalytic Recombination on Copper Oxide in Tertiary Gas Mixtures

With a growing demand for cheap access to space and high-speed flight, hypersonic research is experiencing an unceasing interest from worldwide parties. The vehicles designed for this purpose experience flight conditions where real gas effects caused by dissociation and ionization of the air molecules greatly influence the flow conditions and...

Estimatino of the water-gas-ratios of gas wells offshore by a data-driven model

During gas production offshore, also water is produced. There are gas numbers available per well, but the water production is only known for several wells together. This thesis tries to model the water production per well based on the available data. This is done through a least-squares method. The report shows that it is very difficult to find...

Cost Benefit Analysis of Gas Smart Metering for Commercial and Domestic Users in Spain

Directive 2009/73/EC of the European Parliament and Council introduces the obligation for Member States to review the use of smart metering, whose implementation may be subject to the outcome of an economic evaluation of costs and benefits. Consequently in July 2010, by Order ITC 1890/2010, the CNE is responsible for conducting a study on the...

Micro spectrometer for the measurement of the composition of new gas

As the world is in need of more sustainable energy sources, the use of new gases like hydrogen or bio-gases seems to be a very attractive one. By mixing these new gases with the traditional natural gas, it becomes possible to have a smooth and economically durable transition. The amount of new gases added may be dependent on the availability,...