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The Survival of the Fitter - John Powell - Bog - Practical Action Publishing - Plusbog.dk

The Survival of the Fitter - John Powell - Bog - Practical Action Publishing - Plusbog.dk

This book traces the development of Ghana''s informal engineering sector through stories of the progress of the actual people involved. The first generation of grassroots engineers are wayside vehicle mechanics, or ''fitters'', engaged in repairing machinery. The author argues that the evolution of a fitter, from this role to that of a manufacturer of tools, machines and equipment serving a wide range of ''secondary'' urban and rural industries, is central to progress in engineering, and that engineering and engineers are central to the development of an economy.

DKK 219.00
1

Where There is No Artist - Petra Rohr Rouendaal - Bog - Practical Action Publishing - Plusbog.dk

Where There is No Artist - Petra Rohr Rouendaal - Bog - Practical Action Publishing - Plusbog.dk

A simple to use catalogue, containing a wealth of illustrations, with a unique combination of written text and visual aids.Visual aids can provide information, provoke discussion and discovery, and make difficult ideas easy to understand. They can also improve the accessibility of a book or a poster simply by making it look more interesting. The book contains more than 1,200 drawings (over 700 new to this second edition) relating to a wide range of educational and health issues, along with advice on copying, enlarging, and otherwise changing the illustrations to make them appropriate to a particular situation, without using special equipment. There is also advice on pre-testing materials, to make sure their message will be understood by the intended audience.

DKK 331.00
1

Micro-Hydro Design Manual - Adam Harvey - Bog - Practical Action Publishing - Plusbog.dk

Micro-Hydro Design Manual - Adam Harvey - Bog - Practical Action Publishing - Plusbog.dk

Micro-Hydro Design Manual has grown from Intermediate Technology''s field experiences with micro-hydro installations and covers operation and maintenance, commissioning, electrical power, induction generators, electronic controllers, management, and energy surveys.There is an increasing need in many countries for power supplies to rural areas, partly to support industries, and partly to provide illumination at night. Government authorities are faced with the very high costs of extending electricity grids. Often micro-hydro provides an economic alternative to the grid. This is because independentmicro-hydro schemes save on the cost of grid transmission lines, and because grid extension schemes often have very expensive equipment and staff costs. In contrast, micro-hydro schemes can be designed and built by local staff andsmaller organizations following less strict regulations and using ''off-the-shelf'' components or locally made machinery.

DKK 499.00
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Designing and Building Mini and Micro Hydro Power Schemes - Luis Rodriguez - Bog - Practical Action Publishing - Plusbog.dk

Designing and Building Mini and Micro Hydro Power Schemes - Luis Rodriguez - Bog - Practical Action Publishing - Plusbog.dk

Small hydro power installations have the potential to provide a renewable supply of energy to people in remote, hilly communities, far from the national gird. This book is based on the authors'' considerable experience of installing hydroelectric schemes that produce up to 500kW for powering small communities. The book describes not only the electro-mechanical equipment and how it is installed, but also the correct setting of the installation and how to design and build the channels leading up to the turbine so as to optimize performance. These civil works can be carried out by local manpower, using materials that are usually available locally. Chapters cover the main components of small hydroelectric plants from the intake and the headrace channel, via the conveyance channel, to the forebay tank, penstock, turbine, and generator. This practical manual is a major new addition to the resources available for micro-hydro power project and programme managers worldwide and represents excellent value for such a detailed technical reference handbook.

DKK 365.00
1

Windpumps - Peter Fraenkel - Bog - Practical Action Publishing - Plusbog.dk

Windpumps - Peter Fraenkel - Bog - Practical Action Publishing - Plusbog.dk

Using windpumps can be a reliable, cost-effective and environmentally benign means of providing a supply of clean water in rural areas. Although winpumps have been in commercial production for over 100 years, there is still enormous potential for their use in communities and on farms throughout the developing world. The scarcity of appropriate information on the technology, economics and practicalities of using windpumps has helped to restrict the development of windpumping. This guide aims to assist development workers and project managers in assessing their needs and choosing and implementing an appropriate windpumping system.Windpumps: A guide for development workers looks systematically at every aspect of the implementation of a wind-powered water-pumping system. Different situations and applications are discussed, along with details of how to assess existing local resources and evaluate the relative economics. Simple methods are described to help in sizing and specifying appropriate types of windpump, and advice given on machine procurement, installation, operation and maintenance. An illustrated buyersÆ guide gives full details of over 40 of the worldÆs major manufacturers and the range of winpumping equipment and services they offer, and lists addresses of manufacturers in 36 different countries around the world. Other appendices give useful information for life-cycle costing and summary data for assessing other methods of pumping. The authors of this book are applications specialists with IT Power and the Stockholm Environment Institute.

DKK 253.00
1

Modern Irrigation Technologies for Smallholders in Developing Countries - Gez Cornish - Bog - Practical Action Publishing - Plusbog.dk

Modern Irrigation Technologies for Smallholders in Developing Countries - Gez Cornish - Bog - Practical Action Publishing - Plusbog.dk

Modern Irrigation Technologies reviews the experience of smallholders with irrigation technologies in a range of diverse conditions in many different countries. Some people argue that modern irrigation technologies are the key to increased food production. However, projects introducing modern irrigation technologies in the developing world have often failed because the irrigation hardware, which has been developed for high-technology commercial agriculture, cannot be easily adapted for the use of the smallholder. The author identifies the pre-conditions relating to water availability, institutional support and economic opportunity that must be satisfied before smallholders in developing countries can adopt irrigation methods and benefit from them. The circumstances in which modern technologies were introduced are identified, and the relative success or otherwise of the initiatives are summarized. The book also contains a practical review of the range of irrigation hardware that is available and indicates the types of equipment that are more likely to meet the requirements of the smallholder sector. G.A.Cornish is an irrigation engineer with wide experience of technology transfer and staff training on irrigation schemes in sub-Saharan Africa and south and southeast Asia. He currently works at the Overseas Development Unit of HR Wallingford, UK. Modern Irrigation Technologies will be an invaluable guide to project workers, planners and smallholders involved in planning and designing irrigation projects.

DKK 197.00
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Solar Pumping for Water Supply - Asenath W. Kiprono - Bog - Practical Action Publishing - Plusbog.dk

Solar Pumping for Water Supply - Asenath W. Kiprono - Bog - Practical Action Publishing - Plusbog.dk

Solar power for pumping groundwater has a vast potential for improving the sustainability of water supply schemes. However experience also shows that a lack of knowledge, capacity and expertise to design and implement such schemes is holding back their adoption. This book bridges this gap to equip engineers and technicians with the requisite knowledge for design, implementation and operation of sustainable solar powered water schemes.Solar Pumping for Water Supply is a state of the art review of solar water pumping technology combined with practical insights, lessons and best practices drawn from experience. It takes the reader step by step through the different phases that comprise a solar water pumping project, namely: assessment, design, purchase of equipment, installation, operation and management. The book also covers the economics of using solar pumping technology, especially when compared to diesel generators and hand pumps. Finally, the social aspects are included, specifically relating to the operation and management of solar pumping systems and the role that beneficiaries, implementers, government and the private sector might play to ensure long-lasting water supply. The book provides links and references to tools, documents and videos to accompany the content of the different chapters.Essential reading for solar technical practitioners at NGOs, UN agencies, government offices and private sector, including Global and Regional Technical advisors and Field engineers wanting to understand and know how to design water systems using solar power. A basic knowledge in the field of water supply is assumed, but no previous knowledge of solar photovoltaic technology is required.Alberto Ibáñez Llario is a Global Solar and Water Advisor with the International Organization for Migration and has 15 years of experience in water systems and solar PV in various locations around the world.Asenath Kiprono is a solar water pumping expert with 12 years’ experience in design and implementation of pumping systems in rural Africa, including solar pumping systems in the private, public and humanitarian sectors. Also available in French

DKK 645.00
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Solar Pumping for Water Supply - Asenath W. Kiprono - Bog - Practical Action Publishing - Plusbog.dk

Solar Pumping for Water Supply - Asenath W. Kiprono - Bog - Practical Action Publishing - Plusbog.dk

Solar power for pumping groundwater has a vast potential for improving the sustainability of water supply schemes. However experience also shows that a lack of knowledge, capacity and expertise to design and implement such schemes is holding back their adoption. This book bridges this gap to equip engineers and technicians with the requisite knowledge for design, implementation and operation of sustainable solar powered water schemes.Solar Pumping for Water Supply is a state of the art review of solar water pumping technology combined with practical insights, lessons and best practices drawn from experience. It takes the reader step by step through the different phases that comprise a solar water pumping project, namely: assessment, design, purchase of equipment, installation, operation and management. The book also covers the economics of using solar pumping technology, especially when compared to diesel generators and hand pumps. Finally, the social aspects are included, specifically relating to the operation and management of solar pumping systems and the role that beneficiaries, implementers, government and the private sector might play to ensure long-lasting water supply. The book provides links and references to tools, documents and videos to accompany the content of the different chapters.Essential reading for solar technical practitioners at NGOs, UN agencies, government offices and private sector, including Global and Regional Technical advisors and Field engineers wanting to understand and know how to design water systems using solar power. A basic knowledge in the field of water supply is assumed, but no previous knowledge of solar photovoltaic technology is required.Alberto Ibáñez Llario is a Global Solar and Water Advisor with the International Organization for Migration and has 15 years of experience in water systems and solar PV in various locations around the world.Asenath Kiprono is a solar water pumping expert with 12 years’ experience in design and implementation of pumping systems in rural Africa, including solar pumping systems in the private, public and humanitarian sectors. Also available in French

DKK 522.00
1