Bøger af Anil Singh Yadav

Our society is facing energy challenges as the demand for energy is increasing day by day. The demand for energy in the entire world has reached the level that is difficult to be met by fossil fuels. Presently, fossil fuels are providing more than 85% of the global energy demand. These fossil fuels are limited. Also, it has a significant adverse effect on the environment, for example, acid rain, high ozone concentration, particulate and aerosols that are detrimental to air quality. The limited supply of fossil fuels and its detrimental effect on the environment has led the scientists to search for renewable energy sources. This book on "Renewable energy sources-an application guide" is an effort in the same direction. This book is written by considering Indian climatic conditions and requirements for energy. India is one of the countries with the largest production of energy from renewable sources. In the electricity sector, renewable energy (excluding large hydro) accounted for 20% of the total installed power capacity (71.325 GW) as of 30 June 2018. Large hydro installed capacity was 45.29 GW as of 31 March 2018, contributing to 13% of the total power capacity.

This book focuses on three approaches or methods that can be used to solve a problem of fluid flow and heat transfer in an artificially roughened solar air heater. Solar air heater is one of the basic equipment through which solar energy is converted into thermal energy. Prediction of heat transfer and fluid flow processes of an artificially roughened solar air heater can be obtained by three approaches: theoretical, experimental and computational fluid dynamics (CFD). Based on the literature review, it is concluded that most of the studies carried out on artificially roughened solar air heater with theoretical and experimental approaches. Few studies were carried out with CFD approach. In recent years CFD has been applied in the design of solar air heater. The quality of the solutions obtained from CFD simulations are largely within the acceptable range proving that CFD is an effective tool for predicting the behavior and performance of an artificially roughened solar air heater. The objective of this book is to presents a comparison of different approaches that can be used to solve problems of fluid flow and heat transfer of an artificially roughened solar air heater.