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The use of wind as an energy source is becoming popular because of its non-polluting and renewable features. There is an urgent request to develop site-based estimation on wind engineering, which can be used for optimal design of wind turbines and wind farming. The wind speed for Zafarana Project in Suez Gulf, namely Site-3, based on monthly averaged data for 1 year as well as every 10 min for two days, one day in summer season and one day one winter season have been analyzed to estimate the most appropriate method to find Weibull distribution parameters for this site. The investigated methods are the mean wind speed method, the maximum likelihood method, the modified maximum likelihood method, the graphical method and the power density method. These methods results have been compared with the provided data to find their accuracy based on the root mean square errors. From the obtained results, the mean wind speed and the maximum likelihood method are recommended in estimating the wind speed distribution for the studied site in Zafarana wind farm. [ABSTRACT FROM AUTHOR]

Adsorption carbon capture technology has been considered as one of the most promising technologies to control the CO 2 level in the atmosphere. From the view of thermodynamics, the adsorbed-bulk gas phase equilibrium system should be well developed for accurately elaborating the mechanism of CO 2 adsorption. Since thermodynamic properties of the adsorbed CO 2 plays a significant role in the cyclic analysis of carbon capture technology, in this work, the Gibbs' thermodynamic graphical method was extended to the expression of thermodynamic properties of the adsorbed CO 2 as a specific case study. The 3-dimensional (3D) thermodynamic surface was established to determine the thermodynamic properties of the adsorbed CO 2 in the thermodynamic equilibrium state. The temperature and pressure were treated as the individual variables to calculate the thermodynamic properties of the adsorbed CO 2 , including the adsorption capacity, chemical potential, entropy, and internal energy. Finally, the internal energy-adsorption capacity-entropy 3D thermodynamic surface of the adsorbed CO 2 was obtained by the Gibbs' thermodynamic graphical method. The thermodynamic surface established in this work will contribute and/or accelerate the research of the actual adsorption thermodynamic cycle and new findings are encouraged to be updated to our database to enhance the development on thermodynamic characteristics of the adsorption technology. • Two individual variables are needed to determine the adsorbed CO 2 thermodynamic state. • Calculation of adsorbed CO 2 thermodynamic properties is summarized. • The 3-dimensional thermodynamic surface of the adsorbed CO 2 was established. [ABSTRACT FROM AUTHOR]