renewable-energy

During operation, converter valves continuously generate a large amount of waste heat, which is currently usually removed by a valve cooling system for temperature reduction; however, because the return-water temperature of converter valves is generally low, the waste heat is of insufficient grade, making it difficult to achieve efficient recovery and cascade utilization of low-grade thermal ener…

Researchers have developed the world’s first heat-driven elastocaloric cooling system, using waste heat and solar energy to support sustainable cooling. A cooling system powered directly by heat rather than an electric motor has worked in laboratory tests, offering a possible way to turn waste heat or solar energy into cooling. The prototype, developed by researchers [...]

Hydrogen fuel cells have moved well beyond laboratory demonstrations and niche applications. Stationary power systems are now being contracted at gigawatt scale to serve AI data centers, while heavy-duty trucks and buses are entering commercial deployment across multiple continents. The technology's ability to generate electricity at high efficiency with only water as a byproduct puts it at the c…

IntroductionUsing panel data for 282 Chinese cities from 2011 to 2023, this study examines whether AIoriented place-based policy promotes urban green development.MethodsWe exploit the staggered rollout of China’s National New Generation Artificial Intelligence Innovation and Development Pilot Zones (AIIDPZ) as a quasi-natural experiment and estimate its causal effect on urban green total factor p…

research.ioresearch.io

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