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Latest Transport phenomena Stories

274a1d0d36abe3ea8fac5f2626f873ee1
2010-05-20 14:37:51

To lower the fuel consumption of airplanes and ships, it is necessary to reduce their flow resistance, or drag. An innovative paint system makes this possible. This not only lowers costs, it also reduces CO2 emissions. The inspiration "“ and model "“ for the paint"Ëœs structure comes from nature: The scales of fast-swimming sharks have evolved in a manner that significantly diminishes drag, or their resistance to the flow of currents. The challenge was to apply this...

3553d2dffd6e124edd37108b27d290ea
2009-12-03 12:00:05

Not only in the Earth's mantle, in the atmosphere and in the outer layers of the Sun, but also in a chemical reactor, the exchange of heat may not be as effective as originally thought. There, because warm fluid rises and hence induces movement, the turbulent convection can be 100 billion times stronger than in the typical cooking pot. Hot fluids mix turbulently with warm fluids. As the temperature difference between the cold and warm sides increases, the heat transport increases...

2009-11-12 16:00:00

SIPING, China, Nov. 12 /PRNewswire-Asia/ -- THT Heat Transfer Technology (OTC Bulletin Board: BVNC), a leading provider of heat exchangers and heat exchange solutions in China's cleantech industry today announced that it will release its results for the third quarter of fiscal 2009 on Monday, November 16, 2009 after the close of the US markets. The earnings release will be available on the Company's website at http://www.tht.cn . About THT THT Heat Transfer Technology (BVNC.OB)...

2008-09-12 03:00:21

By Tirabassi, Tiziano Buske, Daniela; Moreira, Davidson M; Vilhena, Marco T ABSTRACT A mathematical scheme is developed to simulate the vertical turbulent dispersion of air pollution that is absorbed or deposited to the ground. The scheme is an exact analytical solution of the atmospheric diffusion equation, without any restriction to the vertical profile of wind speed and eddy diffusivities, and taking into account the dry deposition by a boundary condition of a nonzero flux to the ground....

2007-10-30 06:00:33

By Metzler, Roger D Blaschke, Marilyn W Prevent corrosion, emulsification and fouling by implementing these operational and chemical measures. In the production of petrochemicals, water is often used to control various chemical reactions or is a reaction byproduct. Because it is in intimate contact with the process streams, this water is commonly referred to as process water. Examples of processes that generate process water include ethylene, styrene and acrylonitrile production. In...


Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.