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Related Concept Videos

Single Phase Transformers10:50

Single Phase Transformers

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Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT.
Transformers are stationary electric machines that step up or down AC voltage. They are typically formed of primary and secondary coils or windings, where the voltage on the primary is stepped up or down at the secondary, or the other way around. When a voltage is applied to one of the windings and current flows in that winding, flux is induced in the magnetic core, coupling both windings. With an AC...
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Energy Losses in Transformers01:21

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In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
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Nitrogen is an effective supercritical fluid for extraction or drying processes due to its small molecular size, high density in the near-liquid supercritical regime, and chemical inertness. We present a supercritical nitrogen drying protocol for the purification treatment of reactive, porous...
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The purpose of this experiment is to demonstrate the application of the energy conservation equation to determine the performance of a flow system. To this end, the energy equation for steady, incompressible flow is applied to a short pipe with a gate valve. The gate valve is then gradually closed and its influence on flow conditions is characterized. In...
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Related Experiment Video

Updated: Jan 20, 2026

Single Phase Transformers; Testing for Winding Resistance
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Published on: April 30, 2023

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Energy dissipation in functionally two-dimensional phase transforming cellular materials.

Yunlan Zhang1, David Restrepo1,2, Mirian Velay-Lizancos1

  • 1Lyles School of Civil Engineering, Purdue University, West Lafayette, IN, 47907, USA.

Scientific Reports
|August 31, 2019
PubMed
Summary
This summary is machine-generated.

Phase Transforming Cellular Materials (PXCMs) offer reusable energy dissipation through reversible structural changes. Both S-type and T-type designs effectively absorb and release strain energy under various loads.

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Related Experiment Videos

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Solid Mechanics

Background:

  • Periodic cellular materials can exhibit multiple stable configurations.
  • Phase Transforming Cellular Materials (PXCMs) leverage these transitions for energy dissipation.
  • Reusable solid-state energy dissipation is crucial for advanced material applications.

Purpose of the Study:

  • To introduce and analyze two novel 2D PXCM designs: S-type and T-type.
  • To investigate the energy dissipation mechanisms of these PXCMs under multiaxial loading.
  • To compare the performance of S-type and T-type PXCMs.

Main Methods:

  • Experimental testing of PXCMs under multiaxial loads.
  • Computational simulations to model material behavior.
  • Analysis of energy dissipation capacity and sensitivity to loading direction.

Main Results:

  • Both S-type and T-type PXCMs demonstrate effective solid-state energy dissipation.
  • Energy dissipation is consistent across different loading axes for both designs.
  • The T-type PXCM shows slightly higher energy dissipation capacity and greater directional stability.

Conclusions:

  • PXCMs offer a promising pathway for developing materials with tunable energy absorption properties.
  • The S-type and T-type designs provide viable options for reusable energy dissipation applications.
  • Further research can optimize PXCMs for specific engineering requirements.