Bøker av Sumit Sharma

Solar energy has enormous potential to serve for present energy demand of the world. Photovoltaic is an elegant process of converting the sun energy into electricity. Photovoltaic cells become matchless in transforming the sunshine into electrical energy with no air and noise pollutions. In this work an effort had been made for estimating the effects of dust addition and ambient temperature on conversion efficiency of a 62 KWp Rooftop SPV module. The performance has been evaluated by use of Capacity Utilization Factor and Performance Ratio parameters. This work estimating the decrease in the output power and conversion efficiency as a function of dust accumulation & ambient temperature. A multivariate linear regressions (MLR) model is established to estimate the system's output performance with the consideration of conversion efficiency as the dependent variable and ambient temperature and dust exposure day as the independent variables. It was employed in calculating losses in system efficiency due to dust accumulation. The average efficiency reductions due to dust is 0.872%/day, energy loss is 9.935 kWh/m-sq using MLR model.

This book will be beneficial for students, researchers and scientists working in the field of molecular dynamics simulation. In this book, Materials Studio software developed by Accelrys, a software company headquartered in the United States, has been used for performing the simulations and analysis. The source codes written in the book can be used by any one for modeling. The book starts with an introduction to molecular dynamics. Then various molecular dynamics methods will be discussed in detail. As the book progresses, various case studies related to modeling of composites at nano level will be discussed. The properties predicted are mechanical, thermal, optical and electrical. The concept of perl scripting has also been discussed in detail. Lastly the applications of molecular dynamics in various fields of engineering and technology will be discussed. The nanocomposite materials discussed in this book include polymer-matrix composites. The reinforcements used are carbon nanotubes, graphene, nanoparticles and nanofibers.