Gas+-+Ernest

= = Physics 11.4 presentations Natural gas is basically a substance like fossil fuels and coals which cant be reused and are eventually going to run out, meaning it has a limited amount of it and we dont get them endlessly. Natural gas is formed along with oil fields and coal beds. It is actually also a type of fossil fuel but in gaseous type. They are so important to us that we basically have rely on them in order to keep our daily lifes running in correct orders. They are normally being used for power generation, domestic use, transportation fuel, fertilizer, aviation and hydrogen and etc. It is often informally referred to as simply gas, especially when compared to other energy sources such as electricity. Before natural gas can be used as a fuel, it must undergo extensive processing to remove almost all materials other than methane. A major plus point of natural gas is that it burns with low emissions and can be safely stored. This property makes it convenient and efficient source of heating and generating electricity. The by-products of that processing include ethane, propane, butanes, pentanes and higher molecular weight hydrocarbons, elemental sulfur and sometimes helium and nitrogen.
 * NATURAL GAS**

Its energy transfer: chemical energy--electric energy/ kinetic energy/heat energy/light energy.

There are many different sources for natural gas. Fossil fuels the most common one out of all of all town gas, biogas and hydrates.They are all produced by different processes being carried out in various different ways. You also obtain each of them in different ways and places as well. Natural gas as said above is formed alongside coal and oil fields. It’s a fossil fuel, and is formed as a result of anaerobic digestion of various kinds of dead matter that includes plants, etc. under the Earth’s surface. It’s found deep inside the Earth and is drilled the same way like oil. Another way of obtaining fossil fuel is gastification. In this process, coal is exposed to high pressure and temperatures so that it breaks into gaseous components. The process is not used widely because the cost factor is the main deterrent. Natural gas is often referred to as the cleanest alternative burning fossil fuel. It can be used in the form of compressed natural gas (CNG) or liquitifued petroleum gas(LPG). They both create pollutants and negative effects but whatever be the disadvantages, they cannot deny the fact that natural gases have the cleanest burning of all the other fuels. Although, its high cost may prevent its widespread use, but it’s the need of the hour to help control the world’s pollution levels. Although, it’s a nonrenewable source of energy, who knows, it may outlast coal and oil.

Below is a diagram showing the natural gas processing:
 * Advantages of using natural gas:**

1.Multi- uses. It can be used in various ways and for different purposes. Gas vehicles and electricity. 2. Is more environment friendly than oil or coal. It is largely because of the fact that it has only one carbon and hence, produces less emissions. It is a known fact that for same amount of heat, natural gas emit 30% less carbon dioxide than burning oil and 45% less carbon dioxide than burning coal. Thereby, improving the quality of air. 3.Is cheap (less expensive than gasoline) therefore, very cost effective. 4.Can be safely stored and burned. 5.Most of the natural reserves of natural gas fields are still underutilized 6.Emits 60 to 90% less smog-producing pollutants. 7.Due to clean burning process, doesn’t produce ashes after energy release. 8.Has high heating value of 24,000 Btu per pound.


 * Disadvantages of using natural gas:**

1.One of the disadvantages that is often credited as an advantage by experts, is that it’s a nonrenewable energy resource. It’s availability is finite. Critics also point that their extraction leaves out large craters within the earth. 2.Is highly volatile (highly flammable) and can be dangerous, if handled carelessly. 3.Is colorless, odorless and tasteless that makes detection of its leak very difficult. 4.In gas pipelines, a substance (contains carbon monoxide) that has a strong odor is added to help detect a leak. But, these substances may be harmful and cause deaths, in fact, natural gas use is the most common cause of carbon monoxide deaths. 5.Constructing and managing such pipelines cost a lot. 6.Natural gas produces far lower amounts of sulfur dioxide and nitrious oxide than any other fossil fuel.