William Kamkwamba was born in Malawi, a country where magic ruled and modern science was mystery. It was also a land withered by drought and hunger. But William had read about windmills, and he dreamed of building one that would bring to his small village a set of luxuries that only 2 percent of Malawians could enjoy: electricity and running water. His neighbors called him misala—crazy—but William refused to let go of his dreams. With a small pile of once-forgotten science textbooks; some scrap metal, tractor parts, and bicycle halves; and an armory of curiosity and determination, he embarked on a daring plan to forge an unlikely contraption and small miracle that would change the lives around him.
The Boy Who Harnessed the Wind is a remarkable true story about human inventiveness and its power to overcome crippling adversity. It will inspire anyone who doubts the power of one individual's ability to change his community and better the lives of those around him.
William Kamkwamba was a 2007 TED Global Fellow and a finalist for the Tech Museum Award. He is a student at Dartmouth College in Hanover, New Hampshire.
Bryan Mealer is the author of All Things Must Fight to Live: Stories of War and Deliverance in Congo. He is a former Associated Press staff correspondent and his work has appeared in several magazines, including Harper's and Esquire. He lives in Brooklyn, New York.
From cutting-edge design aspects to experimental data, this comprehensive reference contains eight chapters—each dedicated to a specific design aspect of wind turbine technology. It examines potential wind turbine installation configurations, along with the structural requirements for the tower and nacelle. The book also:
Presents site wind speed prediction techniques Addresses the integration of wind farms into the electrical power system, including power quality and system stability Describes wind speed frequency distribution and the structure of turbulence Details design and analysis techniques, as well as the functions of wind turbine controllers
The book uses a conventional nomenclature and consistent sets of symbols and units throughout to present the information in a manner that’s easy to understand. It also explains how to compare electrical energy generation costs from wind turbine installation with those of other renewable energy sources.
The rapid growth of large-scale wind farm installations has now led to the generation of clean electricity for tens of millions of homes around the world. However, despite the potential to reduce the losses and costs associated with transmission and to use local wind acceleration techniques to improve energy yields, the potential for urban wind energy has yet to be realised.
Although there is increasing public interest, the uptake of urban wind energy in suitable areas has been slow. This is in part due to a lack of understanding of key issues such as: available wind resources; technology integration; planning processes (include assessment of environmental impacts and public safety due to close proximity to people and property); energy consumption in buildings versus energy production from turbines; economics (including grants, subsidies, maintenance); and the effect of complex urban windscapes on performance.
Urban Wind Energy attempts to illuminate these areas, addressing common concerns highlighting pitfalls, offering real world examples and providing a framework to assess viability in energy, environmental and economic terms. It is a comprehensive guide to urban wind energy for architects, engineers, planners, developers, investors, policy-makers, manufacturers and students as well as community organisations and home-owners interested in generating their own clean electricity.
For the last 25 years, engineers around the world tasked with taming this raw power have used Geothermal Reservoir Engineering as both a training manual and a professional reference.
This long-awaited second edition of Geothermal Reservoir Engineering is a practical guide to the issues and tasks geothermal engineers encounter in the course of their daily jobs. The book focuses particularly on the evaluation of potential sites and provides detailed guidance on the field management of the power plants built on them.
With over 100 pages of new material informed by the breakthroughs of the last 25 years, Geothermal Reservoir Engineering remains the only training tool and professional reference dedicated to advising both new and experienced geothermal reservoir engineers.The only resource available to help geothermal professionals make smart choices in field site selection and reservoir management Practical focus eschews theory and basics- getting right to the heart of the important issues encountered in the fieldUpdates include coverage of advances in EGS (enhanced geothermal systems), well stimulation, well modeling, extensive field histories and preparing data for reservoir simulationCase studies provide cautionary tales and best practices that can only be imparted by a seasoned expert
What is war like through the eyes of a child soldier? How does one become a killer? How does one stop? Child soldiers have been profiled by journalists, and novelists have struggled to imagine their lives. But until now, there has not been a first-person account from someone who came through this hell and survived.
In A Long Way Gone, Beah, now twenty-five years old, tells a riveting story: how at the age of twelve, he fled attacking rebels and wandered a land rendered unrecognizable by violence. By thirteen, he'd been picked up by the government army, and Beah, at heart a gentle boy, found that he was capable of truly terrible acts.
This is a rare and mesmerizing account, told with real literary force and heartbreaking honesty.