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相关概念视频

Heating and Cooling Curves02:44

Heating and Cooling Curves

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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...
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Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

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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.
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Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

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In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
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Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

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San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in...
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Instrument Calibration01:12

Instrument Calibration

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Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
187
Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

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Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
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相关实验视频

Updated: Jul 3, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
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Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

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集成模拟和校准框架用于加热系统优化.

Kirill Djebko1, Daniel Weidner1, Marcel Waleska1

  • 1Chair of Computer Science VI: Artificial Intelligence and Knowledge Systems, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.

Sensors (Basel, Switzerland)
|February 10, 2024
PubMed
概括
此摘要是机器生成的。

本研究提出了利用粗的数字双胞胎模型优化供暖系统效率的框架. 它通过使用预处理和校准来解决数据缺口,从而减少炉气体消耗和提高可持续性.

关键词:
自动校准自动校准.遗传算法是一种遗传算法.加热系统优化优化加热系统优化微服务就是微服务.模拟模拟是指一个模拟模拟.

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相关实验视频

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Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

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Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

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A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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科学领域:

  • 建筑能源系统 建筑能源系统
  • 控制工程 控制工程 控制工程
  • 可持续的能源 可持续的能源

背景情况:

  • 由于控制器参数不足于最佳值,供热系统面临效率低下的问题.
  • 现有的监测系统缺乏可行的改进建议.
  • 精确的数字双胞胎受到不可用的关键数据 (如水消耗) 的阻碍.

研究的目的:

  • 开发用于加热系统的模拟和校准框架.
  • 为了实现控制器参数的优化,以提高能源效率.
  • 为了解决建筑物数字双胞胎建模中的数据限制.

主要方法:

  • 利用粗略模型进行定量预测和定性评估.
  • 开发了一个用于数据增强的预处理模块.
  • 使用测量数据实现自动模型校准.
  • 评估控制器参数优化以减少燃气消耗.

主要成果:

  • 使用粗模型和预处理,与部分不完整的测量数据实现了可接受的匹配.
  • 证明了加热系统模型的成功校准.
  • 成功优化了控制器参数,以减少模拟炉燃气消耗.

结论:

  • 粗的数字双胞胎模型,加上预处理,可以有效地建模不完整的数据.
  • 该框架可以准确校准和优化供暖系统控制器.
  • 这种方法提高了建筑加热系统的可持续性和二氧化碳效率.