This book is produced to lay a foundation for students and researchers across the globe, in the field of energy research and energy conservation. Also the book will provide the readers with a closer look in the techniques of energy conversions; to help them get a clear idea of different forms of energy; which will in-turn help them solve more scientific problems in other fields too. This book does not aim at only one topic, it is a combination of lots of inter-connected fields of studies, but they all are unified with one main aspect, energy.