What You Need To Know About Energy

The United States supplies 81% of total energy from oil, coal and natural gas. These are all fossil fuels. We warm our house, run our cars, electric power industry and manufacturing industry and rely on these fuels to provide us electricity. Ultimately, as the supply of known Earth decreases, the difficulty and cost of mining the remaining reserves increases and the impact they continue to use on the Earth becomes more significant, The dependence decreases. However, it takes time to turn to new energy. At the same time, how do you use fossil fuels in the most efficient and environmentally friendly way?

In 2015, 33.2% of US electricity is supplied from coal. This is almost the same as natural gas (32.7%), but it exceeds nuclear power (20%) or renewable energy (13%)

The United States has a large amount of coal, it is a relatively inexpensive energy source, but its use is decreasing. What is the cost of burning down these resources? Is there a good way to solve them?

The United States depends on domestic supply and import of petroleum - about a quarter of consumption - from a few countries

The United States relies heavily on petroleum, accounting for 92% of the total transport sector, accounting for 26% in the industrial sector. Understand the continuous dependence on the influence of this energy

There are abundant natural gas reserves in the US, and imports are less than 4% of total annual consumption. It is mainly from Canada.

In 2015, 29% of the total energy supply in the United States was due to natural gas. Understand why such resources are often described as "clean burning" and consider the costs and benefits of their use.

All of the above is emitted from coal-fired power plants and may be harmful to our health and the environment.

All of the above is emitted from coal-fired power plants and may be harmful to our health and the environment.

All of the above is emitted from coal-fired power plants and may be harmful to our health and the environment.

All of the above is emitted from coal-fired power plants and may be harmful to our health and the environment.

All of the above is emitted from coal-fired power plants and may be harmful to our health and the environment.

How is energy efficiency? Do you know that one third of global energy is lost as waste heat? Data centers are the backbone of our Internet and can use dynamic power management to reduce its intensive energy demand. A large amount of waste heat is generated in iron, steel and cement plants, and by recycling it, electricity can be saved. How do you produce food? Agriculture shifts from the industrial agriculture such as monoculture and strong chemical fertilizer to the repair of healthy soil which stores more carbon and stores more water. These practices include energy production from livestock waste that reduces methane, which is a powerful greenhouse gas.

Do you know that boiling water may be one of your most useless kitchen activities? Hot water on the stove is an energy intensive job, and if you heat it to twice the amount of water you need, you inject it into the sewer. Most of us have a kettle pot right under the faucet. Instead, measure the amount of water needed for a cup of tea equally before pouring it into the kettle. It takes about 0.026 kWh to boil a glass of water. If you spill a little kettle, double it. If you are accustomed to filling it to the end and then heating it on the stove, repeat it 3 or 4 times. If you do it a couple of times a day to meet the tea habits, then eat pasta once or twice a week, the monthly kilowatt usage may unnecessarily increase.

Heat is a kind of energy. Energy is necessary to heat something. For example, have a cup of tea. To make tea, you may use electricity or gas energy. However, once tea gets hot it will never get hot. Put some tea on the table for a while, you already know that it gets cold the longer you wait. This is due to a phenomenon known as heat transfer, heat transfer is the flow of energy in the form of heat. If the temperatures of two objects are different, when objects touch, heat automatically flows from one object to the other. Thermal energy is transferred from a high temperature object to a low temperature object. In the case of tea, liquid heat is transferred to the surrounding air, but it is usually cooler than tea. When the two objects reach the same temperature, the heat transfer stops. Convection by movement of fluid (liquid or gas) is called convection