全球和区域的观点,以优化热敏的动态窗户,以节能建筑
Yuan Gao1, Jacob C Jonsson2, D Charlie Curcija2
1Building Technology & Urban Systems Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA. y.gao@lbl.gov.
Nature communications
|January 3, 2025
概括
热响应式动态窗户自主调节太阳能热量,节省能源. 它们在需要加热和冷却的气候中最有效,而不是在热带地区.
科学领域:
- 建筑科学 建筑科学
- 材料科学 材料科学 材料科学
- 可持续的建筑 可持续的建筑
背景情况:
- 热响应式动态窗户提供自主太阳能热调节,以节能.
- 之前的研究集中在炎热的气候,但这项研究提供了一个全球视角.
研究的目的:
- 分析热敏窗户在不同气候的全球有效性.
- 为可持续建筑提供优化热敏材料的实用指南和工具.
主要方法:
- 全球范围内对100多个材料样本进行了分析.
- 在全球2,000多个地点执行超过280万次模拟.
- 利用人工神经网络模型进行数据分析和热图生成.
主要成果:
- 热敏窗户在需要加热和冷却的气候中最有益.
- 在低度热带地区,最佳的过渡温度窗口在低度热带地区显示出有限的动态性能.
- 在热响应窗户的能源性能中确定了地理差异.
结论:
- 热响应式窗户对于气候适应性建筑的能源效率非常有价值.
- 该研究提供了一种数据驱动的材料选择和建筑设计方法.
- 一个开源工具可用于优化材料性能和评估大规模的能源性能.
更多相关视频
10:36Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
Published on: November 3, 2023
1.4K
04:35Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
Published on: July 5, 2024
1.6K
相关概念视频
01:27Thermal expansion and Thermal stress: Problem Solving
1.1K
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...
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...
1.1K
01:06Thermodynamic Systems
4.8K
A thermodynamic system is a set of objects whose thermodynamic properties are of interest. The system is considered to be embedded in its surroundings or the environment. The system and its environment can exchange heat and do work on each other through a boundary that separates them. However, the immediate surroundings of the system interact with it directly and therefore have a much stronger influence on its behavior and properties.
Consider an example of tea boiling in a kettle. The...
Consider an example of tea boiling in a kettle. The...
4.8K
01:14Mechanisms of Heat Transfer
85
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...
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...
85
01:16Energy Conservation and Bernoulli's Equation
7.0K
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...
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...
7.0K
01:20Mechanisms of Heat Transfer II
3.1K
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...
3.1K
01:14Mechanisms of Heat Transfer I
4.0K
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.
4.0K