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Sharing knowledge to build rich, sustainable lives.

Appropedia is for collaborative solutions
in sustainability, appropriate technology and poverty reduction.

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Windmillprint-crop.jpg As part of a 3-D printing class, graduate students will be designing printable open-source appropriate technology for sustainable development. If you want a technology designed to be 3-D printed, post your ideas here. Chosen designs will be made and open-sourced for the global community. Deadline Nov. 13, 2014


Foundation of the underground tank (copyleft Practical Action/Douglas Gumbo)
Underground rainwater storage facilities. Rainwater storage tanks are more important in semi arid areas than any other areas because they are useful in storing limited water supplies for agricultural purposes. In semiarid regions, where precipitation is low or infrequent during the dry season, it is necessary to store the maximum amount of rainwater during the wet season for use at a later time, especially for agricultural supply. One of the methods frequently used is the underground storage tanks. The in situ technology consists of making storage available in areas where the water is going to be utilised. All rainfall-harvesting systems have three components: a collection area, a conveyance system, and a storage area. In this application, collection and storage is provided within the landscape.

Consider five main factors when designing your underground tank.

  1. Seepage
  2. Evaporation
  3. Length of the dry spell
  4. Daily usage
  5. Construction costs
CCAT natural paint project

Homemade house paints - exposed, exploited, examined and explained.

Cathy Leslie, Executive Director of Engineers Without Borders-USA
In order to stay competitive, tomorrow's engineer will need to become more culturally savvy, as well as adept at implementing appropriate technologies. Capacity building is not about constructing a showcase engineering project. It's about coming up with practical, sustainable solutions that fit the environment, its people and the culture as well. (ASME)

Aleiha's parabolic solar cooker
In physics, energy is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems. Since work is defined as a force acting through a distance (a length of space), energy is always equivalent to the ability to exert pulls or pushes against the basic forces of nature, along a path of a certain length.

Sustainable energy is the provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs. Sustainable energy sources are most often regarded as including all renewable energy sources, such as hydroelectricity, solar energy and power, wind power, wave power, geothermal energy and power, biomass fuel and energy, and tidal power. It usually also includes technologies that improve energy efficiency.

While many renewable energy projects are large-scale, renewable technologies are also suited to rural and remote areas, where energy is often crucial in human development. As of 2011, small solar photovoltaic (PV) systems provide electricity to a few million households, and micro-hydro configured into mini-grids serves many more. Over 44 million households use biogas made in household-scale digesters for lighting and/or cooking, and more than 166 million households rely on a new generation of more-efficient biomass cookstoves.

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Queen's Applied Sustainability Research Group completed projects and publications: This category lists completed projects for the Category:Queens Applied Sustainability Group. Following the individual links leads to a summary of the project and key findings, related Category:Queens Applied Sustainability Group Literature Reviews, Category:Queens Applied Sustainability Group Lab Protocols , and an open access version of the paper published in a peer reviewed journal.

Queen's Applied Technology Research Group Completed Projects and Publications

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Selected categories

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Construction zone — correct mistakes & flag spam as needed

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