Test of Impeller Type Vawt in Wind Tunnel

A.Y. Qasim, R. Usubamatov and Z.M. Zain

<p style="text-align:justify;"><strong>Abstract: </strong>This paper proposes the vane wind turbine, which uses more effectively the wind energy and depends only on the acting&nbsp;area of the vanes. The vane wind turbine is designed to increase the output of a wind turbine that uses kinetic energy of the wind.&nbsp;This design enables the wind force to close left side vanes and simultaneously opens the right side vanes to allow wind move freely&nbsp;(reduce negative torque). It can be used worldwide due to its high efficiency, simple construction, and simple. Test wind turbine&nbsp;model in wind tunnel to verifying the ability of performance design.</p><p><strong>Keywords:</strong> wind turbine, vane, VAWT, energy.</p>

Analysis of Factors Affecting Transport Sector N2O Emissions in China

W. Wang, R. Liu and M. Zhang*

<p style="text-align:justify;"><strong>Abstract: </strong>This paper aims at investigating the potential factors influencing the change of transport sector N₂O emissions in China.&nbsp;First, the transport sector N₂O emissions over the period 1985-2009 are calculated based on the presented method. Then the&nbsp;presented LMDI (logarithmic mean Divisia index) method is used to find the nature of the factors that influence the changes in&nbsp;transport sector N₂O emissions. We find that: (1) Transport sector N₂O emission increased from 557.09 Tt (Thousand tonnes) in&nbsp;1985 to 4860.77 Tt in 2009, at an annual growth rate of 9.44%. And highways transport was the biggest N₂O emitter both in 1985&nbsp;and in 2009. (2) The economic activity effect and transportation modal shifting effect are found to be primarily responsible for&nbsp;driving transport sector N₂O emissions growth over the study period. (3) The transportation intensity effect and emission coefficient&nbsp;effect are found to be the main drivers of the reduction of N₂O emissions of transport sector in China.</p><p><strong>Keywords: </strong>Transport sector; N2O emissions; LMDI.</p>