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関連する概念動画

Calorimetry01:19

Calorimetry

3.9K
When objects at different temperatures are placed in contact with each other but isolated from everything else, they attain thermal equilibrium. A container that prevents heat transfer in or out is called a calorimeter, and the use of a calorimeter to make measurements is called calorimetry. Generally, these measurements involve heat or specific heat capacity. The term "calorimetry problem" is used for any problem where the specified objects are thermally isolated from their...
3.9K
Heating and Cooling Curves02:44

Heating and Cooling Curves

25.9K
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
25.9K
Specific Heat01:16

Specific Heat

66.6K
The specific heat capacity of a substance refers to the energy required to increase the temperature of one gram of that substance by one degree Celcius. Specific heat capacity is often represented in calories (cal), grams (g), and degrees Celsius (oC), but can also be expressed in joules (J), kilograms (kg), and Kelvin (K), among other units.
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
66.6K
Heat Flow and Specific Heat01:12

Heat Flow and Specific Heat

6.4K
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is...
6.4K
Mechanism of heat transfer01:19

Mechanism of heat transfer

1.7K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.7K
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

5.5K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
5.5K

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関連する実験動画

Updated: Nov 30, 2025

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

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冷却と暖房のためのカロリー材料

X Moya1, N D Mathur1

  • 1Department of Materials Science, University of Cambridge, Cambridge, UK.

Science (New York, N.Y.)
|November 13, 2020
PubMed
まとめ
この要約は機械生成です。

マグネトカロリー,電気カロリー,メカノカロリー効果を含むカロリー熱ポンプは,効率的な冷却と加熱のための有望な解決策を提供します. 最近の進歩によって これらの技術は 気候変動と闘うために 統合されています

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Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

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関連する実験動画

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Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

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科学分野:

  • 材料科学
  • 熱力学について
  • 持続可能なエネルギー

背景:

  • マグネトカロリー材料は 何十年もの間 熱ポンプとして使われてきました
  • 電気カロリーと機械カロリー材料は最近注目されています.
  • カロリー効果は先端のヒートポンプ技術に 統一されたアプローチを提供します

研究 の 目的:

  • カロリー効果に関する現在の研究の重要性を強調する.
  • カロリー材料,測定,プロトタイプの最近の進歩を議論します.
  • 気候変動に対処する カロリー・ヒートポンプの可能性を強調する

主な方法:

  • カロリー効果に関する最近の文献のレビュー.
  • 材料の発見と特徴づけの進歩の分析
  • プロトタイプ開発と性能の検討

主要な成果:

  • カロリーの研究は,磁気カロリー,電熱カロリー,および機械カロリー現象を統合した.
  • 新しいカロリー材料の開発で大きな進展がみられた.
  • プロトタイプは効率的な冷却と加熱の応用の可能性を示しています.

結論:

  • カロリー・ヒート・ポンプは急速に発展する分野であり,大きな可能性を秘めています.
  • この統一された研究領域は,持続可能なエネルギーソリューションの開発に不可欠です.
  • カロリー材料と装置のさらなる開発は,実用的なアプリケーションのために不可欠です.