Battery Powered Rail Vehicle Claims New Efficiency Record

battery powered rail vehicle

Students from Dalarna University, Sweden, have won a competition for creating efficient rail-based transport, claiming a world record in the process. Team Eximus 1 was competing in Delsbo Electric, where teams must design and build a battery-operated railway vehicle that uses as little energy as possible. Delsbo Electric is open to college and university students. It was inspired by the Shell Eco-marathon, with the concept translated for rail-based rather than road-based travel.

Vehicles must carry between one and six passengers weighing a minimum average of 50 kg (110 lb) each. Vehicle efficiency is measured on a per person basis, meaning vehicles carrying six passengers are not at a disadvantage. The Eximus 1 carries five passengers. The vehicle is estimated to weigh about 100 kg (220 lb) and to measure about 5,500-mm (217-in) long by 1,500-mm (59-in) wide. It was powered by four 12 V, 45 Wh batteries linked together in parallel and a 500 W motor.

The team’s final efficiency score was 0.84 Wh/person-km (watt-hours for every kilometer traveled by each passenger). Delsbo Electric claims that is a new world record. “We have done research and not found any information about somebody or something traveling as efficient rail-based in the world. In fact, it seems like Eximus 1 achieved a lower energy consumption per person than the current Shell Eco Marathon record.”

See & read more at Gizmag: Silver machine rolls down the track to new efficiency record. Vehicles from other participants can be found here. Thanks to Frank Van Gieson.

Related:

The Wave of the Future

personal effects laurie lipton 2016

“Personal Effects (after Hokusai) 2016″, 5footx7foot8”, charcoal & pencil on paper. Click to enlarge. By Laurie Lipton.

Zero Electricity Air Cooler

Eco-Cooler airco without electricity

Over 70% of Bangladesh’s population live in corrugated tin huts across the countryside. During the long summer months, temperatures reach up to 45° Celsius, making these huts unbearable to live in.

To address the issue, Grey Dhaka teamed up with volunteers from Grameen Intel Social Business Ltd to create the Eco-Cooler – a zero electricity air cooler, which uses re-purposed plastic bottles cut in half and put into a grid, in accordance to available window sizes.

Based on wind direction and airflow pressure, the Eco-Cooler has succeeded in decreasing the temperature in tin huts by up to 5° Celsius. After initial tests, blueprints of the Eco-Cooler were put up online for everyone to download for free.

Thanks to Adriana Parra.

No Tech Reader #6

web 0.0

Smart Technology is a Solution Looking for a Problem

iabR Hans tak

Picture by Hans Tak, International Architecture Biennale Rotterdam 2016

Technologies like driverless cars and smart heating systems could end up making cities dysfunctional according to Maarten Hajer, chief curator of the International Architecture Biennale Rotterdam 2016. Speaking at an opening event for the biennale, Hajer called for architects and designers to stop treating the advent of smart technologies as inevitable, and to question whether they will solve any problems at all.

“People with lots of media force pretend to know exactly what the future will look like, as if there is no choice,” he said. “I’m of course thinking about self-driving vehicles inevitably coming our way.” Discussions about the future of cities are at risk of being “mesmerised” by technology, he added. “We think about big data coming towards us, 3D printing demoting us, or the implication of robots in the sphere of health, as if they are inevitabilities. My call is for us to think about what we want from those technological advances.”

“I have nothing against good technology, it’s wonderful, but you always want social problems to be the priority. If it doesn’t help us get CO2 down, if it doesn’t help us make cities more socially inclusive, if it doesn’t help us make meaningful work, I’m not interested in smart technology. Sometimes I think: “if smart technology is the solution, then what was the problem again?”

Read the full interview at Dezeen. Thanks to Anne-Marie Pronk.

Roads and Electricity? No, Thanks

ati quiguaTo hear Ati Quigua tell it, New York City is a place where people who don’t know each other live stacked inside big buildings, gorging on the “foods of violence,” and where no one can any longer feel the Earth’s beating heart.

Quigua, an indigenous leader whose village in Colombia sits on an isolated mountain range rising 18,700 feet (5,700 meters) before plunging into the sea, is just one of over 1,000 delegates in town for the 15th Session of the United Nations Permanent Forum on Indigenous Issues that ends Friday.

“On top of the temples of the goddess and Mother Earth, they are building castles, they are building cities and building churches, but our mother has the capacity to regenerate,” Quigua said. “We are fighting not to have roads or electricity — this vision of self-destruction that’s called development is what we’re trying to avoid.”

Read more: Indigenous grapple with NYC bedlam, bureaucracy at UN forum, AP.

Electrically Powered Bicycle Trailer & Hand Cart (DIY)

electric powered bike trailer

The German-made Carla Cargo is a three-wheeled cycle trailer with an electric assist motor. It can be pulled by any type of bicycle (including a cargo cycle or an electric bike), and it allows you to carry heavy (up to 150 kg) and bulky cargo (a loading platform of 60 x 160 cm). Uncoupled from the bicycle, the Carla Cargo works as a hand cart for large or heavy loads. The vehicle weighs 40 kg including the battery, and has a range of 40 to 60 km.

carla cargo bike trailerThe electric motor is built into the front wheel and can produce 250 watts as a trailer (up to 23 km/h), and 500 watts as a handtruck (up to 6 km/h). The lithium-ion battery has a capacity of 11 or 15 Ah. The vehicle has two disk brakes and a parking brake, which are controlled via the handle or the bicycle handlebar.

The Carlo Cargo sells for about 4,000 euro. The construction manual is freely accessible online, but only in German for now. The trailer/handcart is present at the International Cargo Bike Festival, April 16-17, in Nijmegem, the Netherlands.

Previously: 8-wheeler cargo cycle.

Capturing Indigenous Knowledge

Kwakiutl-Boat

A Kwakwaka’wakw canoe in 1910. Picture by Edward S. Curtis.

Engineering4Change highlights a video series about indigenous knowledge. From their article:

Thirteen video interviews in a YouTube playlist and a research paper expound the value of indigenous knowledge, the knowledge gleaned from the world throughout millennia that is not formally enshrined in academia. Ignoring indigenous knowledge can cripple engineering projects, and learning from it can enhance them, says Khanjan Mehta, Director of Penn State’s Humanitarian Engineering and Social Entrepreneurship Program.

Carolyn Sachs tells a story of women tending maize fields in Swaziland who ignored the advice from visiting agricultural scientists. The consultants said the farmers should weed their fields, but what looked like weeds to the visitors were actually dietary staples and a source of Vitamin A that the visitors did not recognize.

Bruce Martin explains how Ojibwe fishermen in northern Minnesota read the water to predict the location of the catch and the day’s weather forecast, sometimes better than fish-finding sonar and the local weather channel.

In another video, Audrey Maretzki tells the story of a woman in a nutri-business cooperative in Kenya who described the nutritional values of two grains. Boys raised on maize are fat and boys raised on finger millet are wiry and will beat the maize-fed boys in a fight, the woman said.

“That hit me like an ‘aha’ moment, because I knew that wimby [finger millet] was a more nutritious grain than corn. And to have her tell that in her own way was a recognition on my part that in fact there was a lot of knowledge there that we needed to figure out ways to capture,” Maretzki says in her interview.

Chinese Wheelbarrow, Meet the Honey Badger Wheel

modern variant of the chinese wheelbarrow

Mike Merrell writes us:

“I’ve really enjoyed reading articles on your site since I found the article on the Chinese Wheelbarrow. I stumbled upon it when I was looking for information on the wheelbarrow, and I was immediately hooked. It turned out to be some of my inspiration for our new product we’re calling the Honey Badger Wheel. Our Kickstarter project began March 10th and will run until April 30th.”

“Because you provide awesome content for all of us interested in simple technologies with big benefits, would you be interested in running an article on your site about the modern interpretation of the Chinese Wheelbarrow? My hope is that it would add value to your audience, especially since it’s in line with with new and exciting info for us techies. On a more personal note, I appreciate the boosts of small inspiration from your site that lead to big ideas.”

[Read more…]

Human Powered Level Luffing Crane

level luffing lever crane 1870

“An French illustration from 1870 shows us the unusual ways in which hand-driving lifting devices were used in the period. Push carts almost two metres long were lifted to 9.2 metres by hand cranks via an 11.5 metre long luffing lever, also operated by a worker, and then pushed further along a wooden path to a tipping point. This daring construction was almost 18 metres tall.”

Find the complete illustration here. Source: “Portefeuille économique des machines, de l’outillage et du matériel“, December 1870, Bibliothèque nationale de France. Text: “The History of Cranes (The Classic Construction Series)“, Oliver Bachmann,1997.