Showing papers by "Somnath C. Roy published in 2002"
TL;DR: In this article, two market dependent optimization algorithms that can be used to plan wind energy conversion system (WVECS) installations simultaneously over several sites of interest to a utility, within the scope of available WECS models, power demand of the utility, and wind characteristics at each site; both being variable with time and subject to seasonal changes.
Abstract: This paper presents two market dependent optimization algorithms that can be used to plan wind energy conversion system (WVECS) installations simultaneously over several sites of interest to a utility, within the scope of (a) available WECS models, (b) power demand of the utility, and (c) wind characteristics at each site; both (b) and (c) being variable with time and subject to seasonal changes. A suitable case study illustrates application of the planning algorithms to a scenario comprising of eight installation sites, using a representative market database consisting of thirty-seven available models ofWECS.
87 citations
Proceedings Article•
01 Jan 2002
TL;DR: In this article, thin films of porous (Ba, Sr ) TiO 3 ceramic (BST) have been grown on Ti electrodes in aqueous solution of a hydrothermal-electrochemical method by using X-ray diffraction data of as grown films shows the presence of four different peaks corresponding to barium strontium titanate.
Abstract: Thin films of porous (Ba, Sr ) TiO 3 ceramic (BST) have been grown on Ti electrodes in aqueous solution of (Ba, Sr) ( OH ) 2 by hydrothermal-electrochemical method. X-ray diffraction data of as grown films shows the presence of four different peaks corresponding to barium strontium titanate. The scanning electron microscopy (SEM) shows a uniform distribution of spherical crystallites. The conduction humidity characteristic indicates that the electrical conductivity of the sample is enhanced by the physical adsorption of water molecules. The real part of the complex dielectric constant also increases with relative humidity. It indicates that multi-physisorbed relative layers of water are formed with the increase in humidity. The time taken by the sample to achieve 90 % value of total change is defined as the response time in the case of adsorption and recovery time in the case of desorption. The measured response and recovery times from the characteristics are less than 5 and 265 seconds respectively.
7 citations