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Related Concept Videos

Potential-Energy Criterion for Equilibrium01:16

Potential-Energy Criterion for Equilibrium

499
Potential energy or potential function plays an essential role in determining the stability of a mechanical system. If a system is subjected to both gravitational and elastic forces, the potential function of the system can be expressed as the algebraic sum of gravitational and elastic potential energy. If the system is in equilibrium and is displaced by a small amount, then the work done on the system equals the negative of the change in the system's potential energy from the initial to...
499
Energy Diagrams - I01:14

Energy Diagrams - I

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The dynamics of a mechanical system can be easily understood by interpreting a potential energy diagram. Since energy is a scalar quantity, the interpretation of the dynamics of the system becomes even simpler.
Take the example of a skater on a parabolic ramp. The potential energy at different points along the ramp will be proportional to the height of the ramp, which varies quadratically with the horizontal position on the ramp. As the skater moves down the ramp from the highest position,...
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Energy Diagrams - II01:10

Energy Diagrams - II

4.6K
Energy diagrams are important to understand the dynamics of a system. The topology of an energy diagram helps illustrate the equilibrium points of the system.
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
4.6K
Energy Conservation and Bernoulli's Equation01:16

Energy Conservation and Bernoulli's Equation

8.5K
Applying the conservation of energy principle or the work-energy theorem to an incompressible, inviscid fluid in laminar, steady, irrotational flow leads to Bernoulli's equation. It states that the sum of the fluid pressure, potential, and kinetic energy per unit volume is constant along a streamline.
All the terms in the equation have the dimension of energy per unit volume. The kinetic energy per unit volume is called the kinetic energy density, and the potential energy per unit volume is...
8.5K
Work and Energy for Variable Forces01:10

Work and Energy for Variable Forces

3.3K
When an object is acted upon by a variable force, the amount of work done and the change in energy of the object can be more complex to calculate compared to when a constant force is applied. Work is the product of force and displacement, while energy is the capacity of a system to do work. When a constant force is applied to an object, the work done can be calculated as the product of the force and the distance moved in the direction of the force. However, when a variable force is applied, the...
3.3K
Energy and Power of a Wave00:58

Energy and Power of a Wave

3.5K
The total energy associated with a wavelength is the sum of the potential energy and the kinetic energy. The average rate of energy transfer associated with a wave is called its power, which is total energy divided by the time it takes to transfer the energy. For a sinusoidal wave, energy and power are proportional to the square of both the amplitude and the angular frequency.
Waves can also be concentrated or spread out, as characterized by the intensity of the wave. Intensity is directly...
3.5K
  1. Home
  3. Research Domains
  5. Engineering
  7. Environmental Engineering
  9. Air Pollution Modelling And Control
  11. Ethos.reflow: An Open-source Workflow For Reproducible Renewable Energy Potential Assessments.
  1. Home
  3. Research Domains
  5. Engineering
  7. Environmental Engineering
  9. Air Pollution Modelling And Control
  11. Ethos.reflow: An Open-source Workflow For Reproducible Renewable Energy Potential Assessments.

Related Experiment Video

Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data
09:55

Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data

Published on: December 12, 2013

8.6K

ETHOS.REFLOW: An open-source workflow for reproducible renewable energy potential assessments.

Tristan Pelser1,2, Jann Michael Weinand1, Patrick Kuckertz1

  • 1Institute of Climate and Energy Systems, Jülich Systems Analysis, Forschungszentrum Jülich, Jülich, Germany.

Patterns (New York, N.Y.)
|March 5, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

Accurate renewable energy assessments are crucial for climate goals. ETHOS.REFLOW, a new Python tool, ensures reproducible energy potential studies, enhancing transparency and trust in findings.

Keywords:
North Seafloating turbinesoffshore windopen-source workflow

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Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace
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Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

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Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data
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Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data

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Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
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Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

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Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace
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Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

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Area of Science:

  • Renewable energy resource assessment
  • Energy system modeling
  • Climate change mitigation

Background:

  • Inconsistent methods and data in renewable energy assessments lead to significant result variations.
  • Accurate assessments are vital for energy system planning to meet climate goals.

Purpose of the Study:

  • Introduce ETHOS.REFLOW, a Python-based workflow manager for transparent and reproducible energy potential assessments.
  • Automate the entire workflow from data acquisition to reporting to minimize effort for reproducible analyses.

Main Methods:

  • Demonstrate ETHOS.REFLOW by estimating North Sea offshore wind potential (fixed-foundation and mixed-technology).
  • Compare two turbine siting methods (explicit placement vs. uniform power density) and different wind datasets.
reproducibility
technical potential
transparency
wind potential assessment
  • Utilize a Python-based workflow manager for automated data handling and analysis.

    • Main Results:

    • Estimated maximum installable offshore wind capacity: 768-861 GW.
    • Projected annual energy yield: 2,961-3,047 TWh.
    • Calculated capacity factors: 41%-46%, with notable temporal variability.

    Conclusions:

    • ETHOS.REFLOW provides a robust framework for reproducible energy potential studies.
    • The tool enhances trust in findings and enables energy system modelers to build upon existing work.
    • Standardized workflows improve the reliability of renewable energy resource assessments.