Energy & Green Tech news

Energy & Green Tech

Mechanical engineers lend fresh insight into battery-based desalination technology

To achieve more effective saltwater desalination in a new study, mechanical engineers have focused on fluid movement rather than new materials. By adding microchannels to the inside of battery-like electrodes made of Prussian ...

Energy & Green Tech

Full electrification of Uber and Lyft vehicles would provide only modest benefits to society, study shows

Both Uber and Lyft ride-hailing services have pledged to fully electrify their vehicle fleets by 2030 in the United States.

Engineering

Proposed design could double the efficiency of lightweight solar cells for space-based applications

When it comes to supplying energy for space exploration and settlements, commonly available solar cells made of silicon or gallium arsenide are still too heavy to be feasibly transported by rocket. To address this challenge, ...

Energy & Green Tech

Basic energy access lags amid renewable opportunities, new report shows

A new report by the International Energy Agency (IEA), the International Renewable Energy Agency (IRENA), the United Nations Statistics Division (UNSD), the World Bank, and the World Health Organization (WHO), released today, ...

Energy & Green Tech

Using heat and pressure to improve battery manufacture

Oak Ridge National Laboratory scientists found that a small tweak created big performance improvements in a type of solid-state battery, a technology considered vital to broader electric vehicle adoption.

Engineering

Photocatalytic concrete for clean air in underground tunnels

The air quality in underground road tunnels tends to be worse than in other road environments due to the poor air circulation. To address this issue, researchers at the Korea Institute of Civil Engineering and Building Technology ...

Engineering

Pursuing metal fuel for carbon-free energy on Earth and the moon

Everything burns. Given the right environment, all matter can burn by adding oxygen, but finding the right mix and generating enough heat makes some materials combust more easily than others. Researchers interested in knowing ...

Engineering

Compensating for grid fluctuations with bivalent furnaces

Due to the high energy consumption of melting and holding furnaces, the price of the energy source used represents a significant cost factor in the production of castings. The price of electricity fluctuates significantly ...

Energy & Green Tech

Reducing climate-damaging emissions with lightweight drive shafts

Lightweight design is essential for sustainable mobility. Drive shafts made of carbon-fiber-reinforced plastics (CFRP) with a thermosetting matrix, for example, can reduce climate-damaging emissions. Nevertheless, the lightweight ...

Engineering

A cleaner approach to refrigeration using a squeezable metal

A team of material scientists at the University of Maryland, working with one colleague from Jiaotong University and another from Beihang University, both in China, has developed a cleaner approach to building cooling systems ...

Engineering

A green path to net zero carbon building

The Korea Institute of Civil Engineering and Building Technology (KICT) has mad progress in the field of ecological building technology with the development of a new "Net Zero Carbon Building (NZCB) system." This innovative ...

Engineering

Novel solar desalination system for remote areas developed

With summer temperatures soaring, the specter of water scarcity looms large. As a possible solution to increase the availability of clean, potable water, researchers at the Indian Institute of Science (IISc) have developed ...

Energy & Green Tech

The next generation of solar energy collectors could be rocks

The next generation of sustainable energy technology might be built from some low-tech materials: rocks and the sun. Using a new approach known as concentrated solar power, heat from the sun is stored then used to dry foods ...

Energy & Green Tech

A sustainable solution: Compostable wind turbine blades

It is the year 2035. In a world facing climate catastrophe, the human enterprise is powered by fields of wind farms, with turbine blades made from fast-growing grasses and the roots of a million-year-old fungus.