Menu

Blog

Archive for the ‘sustainability’ category: Page 442

Jun 3, 2020

Tesla owner ‘charges’ Model 3 with homemade solar panel trailer

Posted by in categories: energy, sustainability, transportation

A Tesla owner has demonstrated a rather novel way to charge his Model 3. In a recent video, Sean Callaghan of the ItsYeBoi YouTube channel opted to use a series of off-the-shelf solar panel sheets onto a towable trailer to create a mobile charging unit for his all-electric sedan.

Callaghan planned to use only the sun and the solar sheets purchased from e-commerce platform Wish to charge his Model 3. The solar panel sheets would collect energy from the sun and transfer it to a control panel. The control panels were connected to batteries that would hold the energy—the batteries connected to an inverter, which would then charge the Tesla Model 3.

The entire assembly would provide the Model 3 with about 800 watts of energy on a completely sunny day. However, Callaghan shot the video when weather was overcast, so the entire solar panel trailer build only managed to provide around 300 watts throughout the YouTube host’s test.

Jun 2, 2020

This device could provide cheap electricity to billions living in the dark

Posted by in categories: solar power, sustainability

The thermoelectric generator harnesses the flow of heat between two surfaces — one exposed to the cold sky at night. It could be the nocturnal cousin of solar power, lighting the lives of the 1.7 billion people worldwide living with an unreliable electricity connection.

Jun 2, 2020

Animals that can do math understand more language than we think

Posted by in categories: food, mathematics, sustainability

It is often thought that humans are different from other animals in some fundamental way that makes us unique, or even more advanced than other species. These claims of human superiority are sometimes used to justify the ways we treat other animals, in the home, the lab or the factory farm.

Jun 1, 2020

Researchers Propose New Diamond Nanostructure For Efficient Energy Storage

Posted by in categories: chemistry, computing, cyborgs, nanotechnology, sustainability

One of the biggest challenges for renewable energy research is energy storage. The goal is to find a material with high energy storage capacity and energy storage material with high storage capacity that can also quickly and efficiently discharge a large amount of energy. In an attempt to overcome this hurdle, researchers at the Queensland University of Technology (QUT) have proposed a brand-new carbon nanostructure designed to store energy in mechanical form.

Most portable energy storage devices currently rely on storing energy in chemical form such as batteries, however this proposed new structure, made from a bundle of diamond nanothread (DNT) does not suffer from the same limiting properties as batteries, such as temperature sensitivity, or the potential to leak or explode. I have previously written about carbon nanotubes, and their applications in everything from Batman-like artificial muscle, to an analogy of the fictional element Vibranium, but a lot of research around carbon nanotubes is already focused on energy harvesting and energy storage applications.

What makes this energy storage method different is the method by which energy is stored, and also the related increased robustness of the resultant material. Dr Haifei Zhan and his team at the QUT Centre for material science used computer modelling to propose the structure of these ultra-thin one-dimensional carbon threads. The theory is that these threads should be able to store energy when they are twisted or stretched, similar to the way we store energy in wind-up toys. By turning the key, we force the spring inside into a tight coil. Once the key is released, the coil wishes to release the extra tension held within it and begins to unfurl. In doing so it transfers that mechanical energy into the movement of the toy’s wheels.

May 31, 2020

Swindon Powertrain Introduces EV ‘Crate’ For Conversions

Posted by in categories: sustainability, transportation

The British company Swindon Powertrain announced market launch of its new, compact and ready to install ‘Crate’ EV powertrain for various EV projects — conversions or new builds.

Swindon encourages that it’s an ideal option for sports, recreation and light commercial applications as well as classic car conversions.

“Suitable for OEMs, niche vehicle manufacturers, electric car conversion companies as well as the enthusiast home mechanic.”

May 31, 2020

Self-driving laboratory for accelerated discovery of thin-film materials

Posted by in categories: information science, robotics/AI, solar power, sustainability

Discovering and optimizing commercially viable materials for clean energy applications typically takes more than a decade. Self-driving laboratories that iteratively design, execute, and learn from materials science experiments in a fully autonomous loop present an opportunity to accelerate this research process. We report here a modular robotic platform driven by a model-based optimization algorithm capable of autonomously optimizing the optical and electronic properties of thin-film materials by modifying the film composition and processing conditions. We demonstrate the power of this platform by using it to maximize the hole mobility of organic hole transport materials commonly used in perovskite solar cells and consumer electronics. This demonstration highlights the possibilities of using autonomous laboratories to discover organic and inorganic materials relevant to materials sciences and clean energy technologies.

Optimizing the properties of thin films is time intensive because of the large number of compositional, deposition, and processing parameters available (1, 2). These parameters are often correlated and can have a profound effect on the structure and physical properties of the film and any adjacent layers present in a device. There exist few computational tools for predicting the properties of materials with compositional and structural disorder, and thus, the materials discovery process still relies heavily on empirical data. High-throughput experimentation (HTE) is an established method for sampling a large parameter space (4, 5), but it is still nearly impossible to sample the full set of combinatorial parameters available for thin films. Parallelized methodologies are also constrained by the experimental techniques that can be used effectively in practice.

May 30, 2020

The story of cheaper batteries, from smartphones to Teslas

Posted by in categories: economics, mobile phones, sustainability, transportation

In 2010, a lithium-ion battery pack with 1 kWh of capacity—enough to power an electric car for three or four miles—cost more than $1,000. By 2019, the figure had fallen to $156, according to data compiled by BloombergNEF. That’s a massive drop, and experts expect continued—though perhaps not as rapid—progress in the coming decade. Several forecasters project the average cost of a kilowatt-hour of lithium-ion battery capacity to fall below $100 by the mid-2020s.

That’s the result of a virtuous circle where better, cheaper batteries expand the market, which in turn drives investments that produce further improvements in cost and performance. The trend is hugely significant because cheap batteries will be essential to shifting the world economy away from carbon-intensive energy sources like coal and gasoline.

Batteries and electric motors have emerged as the most promising technology for replacing cars powered by internal combustion engines. The high cost of batteries has historically made electric cars much more expensive than conventional cars. But once battery packs get cheap enough—again, experts estimate around $100 per kWh for non-luxury vehicles—electric cars should actually become cheaper than equivalent gas-powered cars. The cost advantage will be even bigger once you factor in the low cost of charging an electric car, so we can expect falling battery costs to accelerate the adoption of electric vehicles.

May 30, 2020

Flying Around the World in a Solar Powered Plane

Posted by in categories: solar power, sustainability, transportation

The journey took a very long time—505 days to fly 26,000 miles (42,000 km) at an average speed of about 45 mph (70 kph)—but pilots Bertrand Piccard and Andre Borschberg successfully landed the Solar Impulse 2 aircraft in Abu Dhabi on Tuesday, after flying around the world using only the power of the Sun. Solar Impulse 2 is a solar-powered aircraft equipped with more than 17,000 solar cells that weighs only 2.4 tons with a wingspan of 235 ft (72 m). Technical challenges, poor flying conditions, and a delicate aircraft all contributed to the slow pace. Gathered here are images from the record-setting circumnavigation, undertaken to help focus the world’s efforts to develop renewable energy sources.

May 29, 2020

Used Electric Car Batteries Could Be Recycled into New Life as Energy Storage for Solar Farms, Says New Study

Posted by in categories: energy, sustainability, transportation

The MIT researchers say that the average used car battery could provide up to a decade of backup storage for solar grids.

May 29, 2020

Agricultural Drone Speeds Chinese Rice Seeding

Posted by in categories: drones, food, sustainability

One of China’s largest agricultural drone companies is helping to overhaul the rice-farming industry.

XAG recently launched a rice-seeding demonstration of seeding via drone at Happy Farms, an agricultural park in Guangdong province.