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SDG11 Sustainable cities and communities

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Sustainable Development Goal 11: Sustainable cities and communities

Appropedia projects contributing to this SDG[edit]

2-literwinnowerrender.JPG
Winnowing is a process to remove lighter particles of chaff, dirt, etc from grain and other products typically by throwing it into the air and blowing air on it.
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A customizable open-source PV racking concept is designed, prototyped for three types of modules, constructed into systems, and outdoor tested under extreme conditions for one year. An economic analysis is provided along with a technical evaluation of the system.
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In order to ensure appropriate spacing and well oriented array these open-source photovoltaic spacers can be printed. The design has been created to be parametric in OpenSCAD so this design can be used for any conventional array.
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This is a solar charger or an emergency light. It runs on a 6660 mAh battery.
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This speculum takes a different design that current production models to eliminate the need for pivot hardware or large joints. The open jaw design allows for greater operating and inspection area.
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The goal of the 3D-printable cider press is to provide an affordable means of efficiently pressing cider. With scaled-up designs, the press can be used to produce enough product to sell excess not used for subsistence.
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Goniometers are simple devices used to measure the angular range of motion of human limbs. A 3D printed goniometer can be more durable than a commercial one. With the 3D printed version being so extremely cheap, patients can be provided their own goniometers to monitor their own range of motion, thus reducing expensive doctor's visits.
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This project was to replicate the already produced gravity light into the 3D Printed and open source world.
An otoscope is simple device used in the diagnosis of ear, nose, and throat diseases.
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Open source design files provided for 3D printing of open-toed shoes. It is estimated that two billion people worldwide are currently plagued with parasitic diseases that could be prevented by wearing proper footwear.
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One inexpensive way to add iron to a person's diet is to boil water for cooking with a lump of iron for 10 minutes before adding any food. Lucky iron totems composition must be monitored to ensure that toxic levels of elements are not going to be absorbed by the food cooked in the boiled water.
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3D printable prosthetic foot design
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Step by step instructions for how to build a solar water condenser out of a large drum/barrel. Also has step by step instructions for how to build a solar water condenser that is left unattended for extended periods of time.
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This article provides a detailed how to for construction and use of this bailer as well has some design. A discussion on the application of this system and its bales is also included as well as a brief introduction to alternative machines.
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3D printed Alm retractor
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A solar refrigerator directly uses the sun's heat to run the refrigeration process and can have many uses.
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Aurora Solar Software is a solar design software that allows for the remote design of solar projects, estimate energy production and utility bill savings, and offer different financing scenarios using some special features such as consumption profile estimations, shading analysis, performance simulations and much more.
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This Effector for a column delta printer, like the MOST delta RepRap allows different hotend nozzle sizes to be used
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This is a Bamboo Joint model that can be used in building bamboo houses, rooms or any sort of suspended pavilions.
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5-gallon vermicomposting system
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The purpose of project CCATBox was to design a composting toilet system to be used at CCAT in order to save water and recycle the nutrients that were being flushed away.
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Building garden beds and growing within a controlled environment will make the plants grow healthier and also will prevent toxic chemicals from leaching their way into whatever will be grown in the beds.
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This project is a solar charger designed and built by Humboldt State University students who are involved in the Campus Center for Appropriate Technology (CCAT). Panels were placed on the roof and will be used to charge USB powered devices.
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Die "Waschen & Spülen" ist ein umweltwissenschaftliches Projekt der Humboldt State Universität, welches durch Jeffrey Steuben, Annie Welbes und Tim Dower realisiert und in der Toilette im Untergeschoss des CCAT umgesetzt wurde. Es handelt sich um eine Modifikation der Toilette, die es dem Benutzer ermöglicht Wasser zu sparen, in dem das Abwasser des Händewasschens zum Spülen der Toilette wieder verwendet wird.
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The Wash n' Flush is a Humboldt State University environmental science 410 senior project implemented by Jeffrey Steuben, Annie Welbes and Tim Dower which is located in the downstairs bathroom at CCAT. This is a toilet modification that allows users to save water by utilizing the wastewater from handwashing to flush the Toilet.
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This project is designed to give a basic understanding to anyone who may be interested in the mechanics involved in converting the energy of wind into electrical energy. This is a basic knowledge that could spark interest in others and initiate further study.
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This display will be hands-on where a child can use their own power to operate an electronic device. The importance of this project is to plant the seed in a child's mind of understanding how human power is simple, yet can be utilized in so many ways. The hands-on display will need to be durable and able to withstand regular abuse from kids.
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The objective of this project is to assist CCAT by improving their greywater treatment system. Team ECO-PLUMBERS designed a particulate filtration system, which is built to remove particulate matter from kitchen wastewater.
Test Wall Frame.jpg
Constructed, with the help of CCAT and student volunteers, from stick frame and infilled with papercrete and clay-slip straw with a recycled brick base, and covered by a cedar shingle roof. This wall will then have information signs attached for visitors of CCAT campus.
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A large solar farm (250 MW) is proposed on the Carrizo Plain that will take up about 1,900 acres. This project will benefit the area with a renewable energy source and educational value from the public viewing areas, but may endanger some wildlife in the area as it is close to the Carrizo Plain National Monument that has a vast wildlife population. An EIR was released in 2010 addressing these issues.
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This set reduces the cost of gardening tools not only by using cheap material, but also because it is only necessary to have one handle as the different heads can be interchanged
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Makala hii inahusika na uundaji wa mfumo wa kuchuja maji wa gharama nafuu sana. Uchujaji maji unaweza kufanyika kama kuna njia chache ama hakuna kabisa njia mbadala za kupata maji safi toka vyanzo vingine kama vile maji ya mvua, maji ya ardhini (na sio yatembeayo juu ya ardhi)
Clubfootbracefinal.jpg
A 3D printable brace that can be used to treat children born with club foot.
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Compact, cheap commodes could be used in disaster relief operations, hospitals, and households.
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This OSAT prototype is a community comment box where members can drop in comments that can not be removed other than by removing the lock from the back.
Hinge.jpg
Toilet seats and hinges are an overlooked item in the modern world. A proper seat and hinge provides support for when nature calls. This item may be used in a composting toilet aplication.
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This trowel would help fulfill the needs of affordable tools for concrete and interior work on houses and buildings in developing countries.
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Cotton obtained from the farm can be extracted into yarn with this tool.
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The final goal of this project was to provide a refuge for homeless senior citizens within the compound of the Parras Desarollo Integral de la Familia (DIF) so that they can find shelter and companionship, as integration of the family and community is an important part of the Parras culture.
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The DIF wanted to construct a space for the viejitos of Parras who do not have families to be able to relax and enjoy a meal and the company of others, and enlisted the help of the HSU Parras program.
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A solar panel that produces enough energy to charge a smaller battery or a device
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This work offers a primer to the topic of AWVPs, and a description of how to build a dew collection rig. Unfortunately, dewfall is not currently recorded in most standard meteorological archives; so the next step for this project is to offer a reliable means of regional assessment that is accessible to a layman.
Relief Platform 1.jpg
Simple and easy to produce, temporary housing platform to to aid in living conditions after a natural disaster
Drop spindle.jpg
The Drop Spindle is an ancient tool used for spinning fibers such as wool, cotton, flax, and hemp into yarn, without the need for a large, expensive, and complex spinning wheel. This a 3D printable drop spindle.
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The objective of our project is to take organic waste including dog, cow, and horse excrement, as well as kitchen waste and recycle it. Methane is a harmful greenhouse gas that can potentially be harnessed as a clean-burning renewable fuel.
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ESCO stands for Energy Service Company. ESCOs provide services that include developing, designing, and (sometimes) financing energy efficiency projects, installing and maintaining the energy efficient equipment involved, measuring, monitoring, and verifying the project’s energy savings, and assuming the risk that the project will save the amount of energy guaranteed.
Electronic Stethoscope.jpg
This 3D printable stethoscope uses an electret microphone and audio amplifier to drive a pair of earbuds. This allows for high amplification, flexibility in listening as two or more people can listen to the audio, and potentially even recording and transmission to remote doctors.
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This is a much safer way to light dark areas then a gas lamp, which can start fires and releases harmful gasses.
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The Flock House project is a concept to provide a new form of housing for different migrating populations throughout the world.
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The team was challenged with the task of developing a bicycle powered generator capable of generating 100+ watts while enabling the use of all types of bicycles. This project is intended to increase the general public understanding of renewable energy and allow for any cyclist to take part in generating energy.

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