在不同的电力结构下,新能源汽车的碳排放潜力不同
Bingchun Liu1, Yue Zhao1, Xiaoqin Liang2
1School of Management, Tianjin University of Technology, Tianjin, 300384, People's Republic of China.
Environmental science and pollution research international
|November 24, 2023
概括
新能源汽车的采用大大减少了温室气体 (GHG) 排放. 然而,它们真正的减排潜力取决于未来的发电组合和所有权增长情景.
科学领域:
- 环境科学 环境科学
- 运输工程 运输工程
- 能源系统分析 能源系统分析
背景情况:
- 新能源汽车 (NEV) 对于减少运输部门温室气体 (GHG) 排放至关重要.
- 新能源发电机的实际减排能力是复杂的,受发展情景和不断变化的电力能源组合的影响.
研究的目的:
- 根据多种发展途径,深入调查新能源汽车的减排能力.
- 预测NEV所有权和未来的能源发电结构.
- 根据预测的新能源汽车采用和能源发电场景量化和比较碳排放.
主要方法:
- 一个灰色的关系分析-双向长期短期记忆 (GRA-BiLSTM) 模型被开发来预测NEV所有权在三个不同的场景.
- 使用回归模型预测能源发电的未来结构.
- 基于这些预测,碳排放量被量化和比较,分析了它们在不同能源生产组合下的影响.
主要成果:
- 到2035年,预计新能源汽车所有权将在三个情景中达到5.711,1.8122.76和2.1893亿辆.
- 相应的碳排放量估计为60.897亿公斤,193.246亿公斤和233.451亿公斤.
- 这些排放占当前发电碳排放量的很大一部分,高达86%,这凸显了能源结构的影响.
结论:
- 新能源发电机的碳减排效率与未来的能源生产组合有很强的相关性.
- 新能源汽车的市场采用率是确定其整体环境影响的关键因素.
- 能源基础设施和新能源汽车市场增长的战略规划对于最大限度地减少排放的好处至关重要.
更多相关视频
06:39Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
Published on: October 20, 2023
2.9K
11:25Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
Published on: March 7, 2022
4.6K
相关概念视频
Batteries and Fuel Cells
27.5K
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...
27.5K
Electromotive Force
4.6K
Electromotive force (emf) is the force that causes current to flow from a higher to a lower potential. The term "electromotive force" is used for historical reasons, even though emf is not a force at all.
Any circuit with a constant current must contain an emf-producing source. Examples of emf sources include batteries, electric generators, solar cells, thermocouples, and fuel cells. All these sources transform energy of some kind (mechanical, chemical, thermal, and so on)...
Any circuit with a constant current must contain an emf-producing source. Examples of emf sources include batteries, electric generators, solar cells, thermocouples, and fuel cells. All these sources transform energy of some kind (mechanical, chemical, thermal, and so on)...
4.6K
Electrical Energy
1.2K
Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
1.2K
Finding Electric Potential From Electric Field
4.1K
For a system of charges, it is easy to calculate the system's potential because potential is a scalar quantity. However, in some instances where calculating the electric field is more straightforward than finding the potential, the electric field is used to calculate the system's potential. For a positive charge, the electric field is radially outward, and the potential is positive at any finite distance from the positive charge. In such an electric field, the motion away from the...
4.1K
Electric Potential and Potential Difference
4.5K
Suppose a positive test charge moves away from a positive static charge, then the Coulomb force does positive work, and its electric potential energy decreases. The potential energy per unit charge is defined as the electric potential. The electric potential is independent of the test charge.
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
4.5K
Electric Potential Energy
5.9K
When an electric field accelerates a free positive charge q, it is given kinetic energy. The process is analogous to an object accelerated by a gravitational field as if the charge were going down an electrical hill where its electric potential energy is converted into kinetic energy. Of course, the sources of the forces are very different. The work done on a charge q by the electric field in this process helps to develop a definition of electric potential energy.
The electrostatic or Coulomb...
The electrostatic or Coulomb...
5.9K
