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相关概念视频

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Hess's Law03:40

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There are two ways to determine the amount of heat involved in a chemical change: measure it experimentally, or calculate it from other experimentally determined enthalpy changes. Some reactions are difficult, if not impossible, to investigate and make accurate measurements for experimentally. And even when a reaction is not hard to perform or measure, it is convenient to be able to determine the heat involved in a reaction without having to perform an experiment.
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Free Energy Changes for Nonstandard States

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The free energy change for a process taking place with reactants and products present under nonstandard conditions (pressures other than 1 bar; concentrations other than 1 M) is related to the standard free energy change according to this equation:
 
where R is the gas constant (8.314 J/K·mol), T is the absolute temperature in kelvin, and Q is the reaction quotient. This equation may be used to predict the spontaneity of a process under any given set of conditions.
Reaction Quotient...
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相关实验视频

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A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
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地下储存气:技术经济前景

Eleni Gianni1, Pavlos Tyrologou1, Nazaré Couto2

  • 1Chemical Process & Energy Resources Institute (CPERI), Centre for Research and Technology Hellas (CERTH), Athens, 15125, Greece.

Open research Europe
|May 20, 2024
PubMed
概括

政府正在探索绿色气用于脱碳,地下储存是关键. 诸如枯竭的水库和含水层等多孔介质是储存这种清洁燃料的最具成本效益的选择.

关键词:
经济要求 经济要求能源转型 能源转型透的媒介是多孔的岩石的洞穴岩石的洞穴技术参数 技术参数在地下储存气的过程中,

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科学领域:

  • 能源政策 能源政策
  • 地质工程是地质工程.
  • 可持续的燃料 可持续的燃料

背景情况:

  • 全球能源政策,包括巴黎协定和欧洲绿色协议,需要减少温室气体排放.
  • 绿色被认为是一种清洁的燃料,推动了对其生产和储存基础设施的投资增加.
  • 有效的储存对于整合可再生能源和实现脱碳目标至关重要.

研究的目的:

  • 评估各种地下储存技术的技术经济可行性.
  • 为大规模储存气确定最具经济吸引力的地质环境.
  • 突出数据分析和机器学习在推进地质储存知识中的作用.

主要方法:

  • 对地下储存的选项进行审查和技术经济评估.
  • 地质储存环境的分类为多孔介质 (枯竭的碳化合物储库,含水层) 和岩洞 (硬岩洞,盐洞,废弃的矿山).
  • 分析与不同存储方法相关的技术要求和资本成本.

主要成果:

  • 孔状介质是地下储存气的经济上最有吸引力的选择.
  • 由于遗漏的地点特征和洞穴采矿,耗尽的碳化合物储库受到高度青.
  • 水库提供了一个更简单的建筑选择,使它们成为一个强大的二次选择.

结论:

  • 在多孔地质构成中地下储存是绿色的可行和成本效益高的战略.
  • 枯竭的碳化合物储库和含水层是未来储基础设施最有前途的地点.
  • 利用数据分析和机器学习进行进一步的研究可以优化地质储存技术.