Circular Energy Systems
Circular Energy Systems - Related Videos
11:15
Determining the Contribution of the Energy Systems During Exercise
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Cited by 61 •
2012
This protocol allows researchers focused on exercise and sports sciences to determine the relative contribution of three different energy systems to the total energy expenditure during a large variety of exercises.
01:11
Energy of a Satellite in a Circular Orbit
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2023
Thousands of artificial satellites orbit the Earth every day at various distances from the Earth. Satellites that orbit the Earth below an altitude of 1,600 km are considered to be orbiting in low-Earth orbit (LEO). Research satellites and Earth observation satellites are usually placed in LEO, and mostly orbit the Earth in elliptical orbits. Navigation satellites are placed in medium-Earth orbit (MEO), ranging from 2,000 km to 36,000 km from the surface of the Earth. Meanwhile, communication...
00:23
Kinetic Energy
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2019
Kinetic energy is the ability of an object in motion to do work or enact change. It can take on many forms. For instance, water flowing down a waterfall has kinetic energy. In biological systems, particles of light travel and are absorbed by plants to create chemical energy. Animals consume the chemical energy and give off molecules that carry their scent through the air. They also generate kinetic energy when they run away from predators. Entire systems also possess kinetic energy, like the...
08:52
Energy and Work
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2023
Source: Ketron Mitchell-Wynne, PhD, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA This experiment demonstrates the work-energy principle. Energy is one of the most important concepts in science and is not simple to define. This experiment will deal with two different kinds of energy: gravitational potential energy and translational kinetic energy. Gravitational potential energy is defined as the energy an object...
08:39
Quantification of Circular RNAs Using Digital Droplet PCR
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Cited by 8 •
2022
This protocol describes the detailed method of digital droplet PCR (dd-PCR) for precise quantification of circular RNA (circRNA) levels in cells using divergent primers.
FAQs
Resource cascading directs an output from one process toward another use rather than treating it as waste. In practice, this can link waste heat, biogas, or renewable electricity with other energy needs. The environmental value comes from using available resources more fully, which can improve efficiency and reduce waste and associated environmental impacts.
Demand management helps align energy use with available generation, conversion, storage, and recovery options. By influencing when and how energy is consumed, it can reduce mismatches within the system and support more efficient use of renewable electricity or recovered energy. This coordination strengthens resource efficiency while helping reduce reliance on finite fuels.
Considering these functions together reveals how energy can move through a connected system instead of being managed as isolated activities. Generation may provide electricity, conversion may produce another useful form, storage can retain availability, and consumption determines demand. Coordinating them allows useful outputs to support additional processes and reduces avoidable losses or waste.
Integrated infrastructure creates the physical and organizational connections needed to transfer energy and useful by-products among processes. Energy recovery then captures outputs such as waste heat or biogas for further use. Together, these mechanisms can improve overall efficiency, reduce discarded resources, and contribute to lower greenhouse-gas emissions in linked facilities or communities.
Design begins by examining energy inputs, outputs, conversion points, storage needs, consumption patterns, and opportunities for recovery. Planners can then connect compatible processes through integrated infrastructure, apply resource cascading, and incorporate demand management. Evaluating the resulting system against efficiency, finite-fuel dependence, greenhouse-gas emissions, and resilience helps guide practical choices.
The framework can guide industrial networks, renewable-energy projects, buildings, and communities. Each setting can connect generation, conversion, storage, consumption, and recovery in ways suited to its available resources and energy demands. This broad applicability makes the approach relevant to both individual facilities and larger networks seeking more resource-efficient and resilient energy use.
Assessment can focus on whether the system improves energy efficiency, reduces dependence on finite fuels, lowers greenhouse-gas emissions, and limits waste or other environmental impacts. Researchers can also consider resilience, particularly when connected infrastructure and multiple energy pathways help maintain useful energy flows across buildings, industrial networks, renewable projects, or communities.