Cryogenics is a term that is used to refer to the process of producing of materials at extremely low temperatures. It may also refer to any process or material that relates to low temperatures. On the other hand, the term cryogenic liquid refers to a liquefied gas that is stored in a liquid state.Cryogenic gases usually have extremely low boiling point.
Often, these gases will register boiling points that are as low as 150 degrees below zero. As a result of this, they exist as gases at room temperature and pressure. In spite of the differences, there are two common properties among cryogens. First of all, they all have extremely low temperatures. Secondly, large gas amounts are formed when small amounts of the liquid evaporate.
There are three major groups in which most cryogenic liquids and the resultant gasses can be categorized. The three categories are inert gasses, flammable gasses, and oxygen. Inert gasses undergo minimum chemical reaction. Similarly, they do not support combustion and neither do they burn. Major examples of materials classified as inert include krypton, neon, helium, argon, and nitrogen.
Flammable gasses are gasses that can burn in air and are produced from cryogenic liquids. Examples of these gasses include methane, hydrogen, and liquefied natural gasses. Lastly, liquid oxygen is capable of causing mot materials that are viewed as non-combustible to burn in its presence. In fact, some materials such as organic materials undergo explosive reaction with liquefied oxygen.
There are a number of applications for cryogenics. A number of them are industrial and medical related. A decrease in temperature results in a decrease in the electrical resistance of a metal. The implication of this is the widespread use of cryogenics in minimizing the electrical resistivity of metals. The preservation and food industry is another key area of application for cryogens. A good number of foods require instant preservation for them not to go bad.
Medicine field also uses cryogenics. They are applied in a process known as cryosurgery. In this process, body organs are subjected to very low temperatures so as to denature the unwanted or malfunctioning body tissues. Cancer treatment can also apply this process by denaturing cancerous cells and tissues in the body. This treatment plan is becoming popular at a very fast rate.
Another major use of cryogens is in blood banking. Low temperatures are necessary in the storage of certain rare blood groups. The temperatures may have to be as low as -165 degrees Celsius. Liquid nitrogen has been used in certain cryogenics technology incorporated in night club effect systems. These systems produce a chilling effect and white fog, which is then illuminated using colored lights.
In working machines, cryogenic cooling can be used to cool off components at the end of the machine. Such cooling is essential in prolonging the lifetime of the tools in use. Cryogens are also used as propellants in rockets with the cryogens in most use being liquid oxygen, hydrogen, and methane.
Often, these gases will register boiling points that are as low as 150 degrees below zero. As a result of this, they exist as gases at room temperature and pressure. In spite of the differences, there are two common properties among cryogens. First of all, they all have extremely low temperatures. Secondly, large gas amounts are formed when small amounts of the liquid evaporate.
There are three major groups in which most cryogenic liquids and the resultant gasses can be categorized. The three categories are inert gasses, flammable gasses, and oxygen. Inert gasses undergo minimum chemical reaction. Similarly, they do not support combustion and neither do they burn. Major examples of materials classified as inert include krypton, neon, helium, argon, and nitrogen.
Flammable gasses are gasses that can burn in air and are produced from cryogenic liquids. Examples of these gasses include methane, hydrogen, and liquefied natural gasses. Lastly, liquid oxygen is capable of causing mot materials that are viewed as non-combustible to burn in its presence. In fact, some materials such as organic materials undergo explosive reaction with liquefied oxygen.
There are a number of applications for cryogenics. A number of them are industrial and medical related. A decrease in temperature results in a decrease in the electrical resistance of a metal. The implication of this is the widespread use of cryogenics in minimizing the electrical resistivity of metals. The preservation and food industry is another key area of application for cryogens. A good number of foods require instant preservation for them not to go bad.
Medicine field also uses cryogenics. They are applied in a process known as cryosurgery. In this process, body organs are subjected to very low temperatures so as to denature the unwanted or malfunctioning body tissues. Cancer treatment can also apply this process by denaturing cancerous cells and tissues in the body. This treatment plan is becoming popular at a very fast rate.
Another major use of cryogens is in blood banking. Low temperatures are necessary in the storage of certain rare blood groups. The temperatures may have to be as low as -165 degrees Celsius. Liquid nitrogen has been used in certain cryogenics technology incorporated in night club effect systems. These systems produce a chilling effect and white fog, which is then illuminated using colored lights.
In working machines, cryogenic cooling can be used to cool off components at the end of the machine. Such cooling is essential in prolonging the lifetime of the tools in use. Cryogens are also used as propellants in rockets with the cryogens in most use being liquid oxygen, hydrogen, and methane.
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