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Categories: Chemistry: Thermodynamics

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Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Batteries Environmental: Water
Published

Promising salt for heat storage      (via sciencedaily.com)     Original source 

Salt batteries can store summer heat to be used in winter, but which salt works best for the purpose?

Chemistry: Thermodynamics
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Toward sustainable energy applications with breakthrough in proton conductors      (via sciencedaily.com)     Original source 

Donor doping into a mother material with disordered intrinsic oxygen vacancies, instead of the widely used strategy of acceptor doping into a material without oxygen vacancies, can greatly enhance the conductivity and stability of perovskite-type proton conductors at intermediate and low temperatures of 250--400 °C.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues
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No one-size-fits-all solution for the net-zero grid      (via sciencedaily.com)     Original source 

As power generation from sources like solar and wind increases, along with the introduction of devices such as heat pumps and batteries, a new optimization tool will help the UK plan for a greener electricity network.   The researchers developed an algorithm to model how these smaller networks distributed electricity -- factoring in how local grids could become unbalanced by adding too many heat pumps in a single area or generating more electricity than the grid could accept.  

Chemistry: Thermodynamics Environmental: General Environmental: Water
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New tool models viability of closed-loop geothermal systems      (via sciencedaily.com)     Original source 

Researchers have used computer models of closed-loop geothermal systems to determine if they would be economically viable sources of renewable energy. They found that the cost of drilling would need to decrease significantly to hit cost targets.

Chemistry: General Chemistry: Thermodynamics Energy: Technology Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General
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'Cooling glass' blasts building heat into space      (via sciencedaily.com)     Original source 

Researchers aiming to combat rising global temperatures have developed a new 'cooling glass' that can turn down the heat indoors without electricity by drawing on the cold depths of space. The new technology, a microporous glass coating, can lower the temperature of the material beneath it by 3.5 degrees Celsius at noon, and has the potential to reduce a mid-rise apartment building's yearly carbon emissions by 10 percent.

Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Environmental: General Geoscience: Environmental Issues Geoscience: Severe Weather
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New cooling ceramic can enhance energy efficiency for the construction sector and help combat global warming      (via sciencedaily.com)     Original source 

Researchers have made a significant breakthrough in developing a passive radiative cooling (PRC) material. The material, known as cooling ceramic, has achieved high-performance optical properties for energy-free and refrigerant-free cooling generation. Its cost-effectiveness, durability and versatility make it highly suitable for commercialization in numerous applications, particularly in building construction. 

Chemistry: Biochemistry Chemistry: Thermodynamics Engineering: Nanotechnology
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Understanding the dynamic behavior of rubber materials      (via sciencedaily.com)     Original source 

Rubber-like materials can exhibit both spring-like and flow-like behaviors simultaneously, which contributes to their exceptional damping abilities. To understand the dynamic viscoelasticity of these materials, researchers have recently developed a novel system that can conduct dynamic mechanical analysis and dynamic micro X-ray computed tomography simultaneously. This technology can enhance our understanding of the microstructure of viscoelastic materials and pave the way for the development of better materials.

Chemistry: Thermodynamics Engineering: Nanotechnology Offbeat: General Physics: General Physics: Optics
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'Hot' new form of microscopy examines materials using evanescent waves      (via sciencedaily.com)     Original source 

A team of researchers has built a prototype microscope that does not rely on backscattered radiation, instead uses passive detection of thermally excited evanescent waves. They have examined dielectric materials with passive near-field spectroscopy to develop a detection model to further refine the technique, working to develop a new kind of microscopy for examining nanoscopic material surfaces.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Computer Science: General Energy: Technology
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Researchers develop solid-state thermal transistor for better heat management      (via sciencedaily.com)     Original source 

A team of researchers has unveiled a first-of-its-kind stable and fully solid-state thermal transistor that uses an electric field to control a semiconductor device's heat movement.  The group's study details how the device works and its potential applications. With top speed and performance, the transistor could open new frontiers in heat management of computer chips through an atomic-level design and molecular engineering. The advance could also further the understanding of how heat is regulated in the human body.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
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Stronger, stretchier, self-healing plastic      (via sciencedaily.com)     Original source 

An innovative plastic, stronger and stretchier than the current standard type and which can be healed with heat, remembers its shape and partially biodegradable, has been developed. They created it by adding the molecule polyrotaxane to an epoxy resin vitrimer, a type of plastic. Named VPR, the material can hold its form and has strong internal chemical bonds at low temperatures.

Chemistry: Thermodynamics Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues
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Underground car parks heat up groundwater      (via sciencedaily.com)     Original source 

The heat given off by car engines warms up underground car parks in such a way that the heat passes through the ground into the groundwater. In Berlin alone, enough energy is transferred to the groundwater to supply 14,660 households with heat. According to the researchers, this warming could have long-term effects on groundwater quality. In their study, they also propose a solution. Using geothermal energy and heat pumps, the heat could be extracted from the ground and utilized.

Chemistry: Thermodynamics Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
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What a '2D' quantum superfluid feels like to the touch      (via sciencedaily.com)     Original source 

Researchers have discovered how superfluid helium 3He would feel if you could put your hand into it. The interface between the exotic world of quantum physics and classical physics of the human experience is one of the major open problems in modern physics. Nobody has been able to answer this question during the 100-year history of quantum physics.

Chemistry: Thermodynamics Energy: Alternative Fuels Offbeat: General Physics: Optics
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In a surprising finding, light can make water evaporate without heat      (via sciencedaily.com)     Original source 

At the interface of water and air, light can, in certain conditions, bring about evaporation without the need for heat, according to a new study.

Chemistry: Biochemistry Chemistry: Thermodynamics Computer Science: General Engineering: Nanotechnology Physics: Optics
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New twist on optical tweezers      (via sciencedaily.com)     Original source 

Optical tweezers use laser light to manipulate small particles. A new method has been advanced using Stampede2 supercomputer simulations that makes optical tweezers safer to use for potential biological applications, such as cancer therapy. 

Chemistry: Thermodynamics Environmental: General Geoscience: Environmental Issues
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A sustainable alternative to air conditioning      (via sciencedaily.com)     Original source 

As the planet gets hotter, the need for cool living environments is becoming more urgent. But air conditioning is a major contributor to global warming since units use potent greenhouse gases and lots of energy. Now, researchers have found in a new study an inexpensive, sustainable alternative to mechanical cooling with refrigerants in hot and arid climates, and a way to mitigate dangerous heat waves during electricity blackouts.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Fossil Fuels Environmental: General Geoscience: Environmental Issues
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3D printed reactor core makes solar fuel production more efficient      (via sciencedaily.com)     Original source 

Using a new 3D printing technique, researchers have developed special ceramic structures for a solar reactor. Initial experimental testing show that these structures can boost the production yield of solar fuels.

Chemistry: Thermodynamics Energy: Alternative Fuels Environmental: General Geoscience: Environmental Issues
Published

Pivotal breakthrough in adapting perovskite solar cells for renewable energy      (via sciencedaily.com)     Original source 

A huge step forward in the evolution of perovskite solar cells will have significant implications for renewable energy development.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Technology Environmental: General Environmental: Water
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Solar design would harness 40% of the sun's heat to produce clean hydrogen fuel      (via sciencedaily.com)     Original source 

Engineers have designed a system that can efficiently produce 'solar thermochemical hydrogen.' It harnesses the sun's heat to split water and generate hydrogen -- a clean fuel that emits no greenhouse gas emissions. 

Chemistry: Thermodynamics Geoscience: Severe Weather
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Experiencing record-breaking heat days affects perception of weather trends      (via sciencedaily.com)     Original source 

Research finds that experiencing days in which the temperature exceeds previous highs for that time of year affects people’s perception of weather trends.

Chemistry: Thermodynamics Energy: Technology Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Comfort with a smaller carbon footprint      (via sciencedaily.com)     Original source 

Researchers have developed a data-driven AI algorithm for controlling the heating and cooling of an office building. The system does not require ambient sensors or specific knowledge of the building's rooms. During heating operations, the system was able to achieve energy savings of up to 30%, which can represent significant reductions to cost and environmental impact.