Portal:Appropriate technology

From Appropedia
Jump to: navigation, search
Kiswahili - English
edit  watch  

The Appropriate technology Portal

A windmill is used to power a water pump which fills a swimming pool.
Appropriate technology (AT) is technology that is designed with special consideration to the context of its use - including environmental, ethical, cultural, social, political, and economical aspects of the community it is intended for. With these goals in mind, AT proponents claim their methods require fewer resources, are easier to maintain, and have less of an impact on the environment compared to techniques from mainstream technology, which they contend is wasteful and environmentally polluting.

The term is usually used to describe simple technologies proponents consider suitable for use in developing nations or less developed rural areas of industrialized nations. This form of "appropriate technology" usually prefers labor-intensive solutions over capital-intensive ones, although labor-saving devices are also used where this does not mean high capital or maintenance cost. In practice, appropriate technology is often something described as using the simplest level of technology that can effectively achieve the intended purpose in a particular location. In industrialized nations, the term appropriate technology takes a different meaning, often referring to engineering that takes special consideration of its social and environmental ramifications.

edit  watch  

Selected page

There are four basic Hexayurt sizes which cover a variety of needs.
What is it? The Hexayurt is a refugee shelter system based on work done at the Rocky Mountain Institute. It uses an approach based on "autonomous building" to provide not just a shelter, but a comprehensive family support unit which includes drinking water purification, composting toilets, fuel-efficient stoves and solar electric lighting. Other systems can be added in a modular fashion.

Is this for real? Yes. Both the American Red Cross and the US Department of Defense have examined the Hexayurt system in detail and found that it has considerable merit and utility. I hope that we will see it in use by international agencies within two years. The best place to get started is to read the slides from the presentation Vinay Gupta gave at the Pentagon in December 2006: Pentagon Presentation (pdf) - 20 pages, not much text, and the best summary of the system we currently have online.

Projected Costs: Shelter: $200 - $500+ per single family unit depending on size, climate and use duration Infrastructure Package: around $100 per unit.

edit  watch  

Selected topics (Book)

Ersson rainwater harvest and purification (original)

Rainwater catchment and purification system, at less than $1500, for the majority of household use.

edit  watch  

Things you can do

Appropriate technology · Built environment · Business · Construction and materials · Culture and community · Design · Energy · Energy storage · Engineering for Sustainable Development · Food and agriculture · Government supported development programs · Governments and sustainability · Green living · Greywater · Health and safety · Heat exchangers · Hybrid power systems · ICT and Education · Information technology · Learning · Medical Devices · Net Impact · Permaculture · Photovoltaics · Projects · Rainwater harvesting · Renewable energy · Service learning · Solar · Solar thermal · Sustainability · Sustainable business · Sustainable city living · Sustainable energy storage · Sustainable farm energy alternatives · Transport · Water