Important Functions Of Fluids In The Form Of A Spray
Although most people are familiar with the idea of a spray, it is perhaps less well understood exactly what a spray is. The definition of a spray is a collection of droplets dispersed in a gas. When someone sprays, for example, an aerosol can of deodorant, liquid stored inside the can is scattered as a cloud of fine drops in the air. It can be seen how this fits together with the definition of a spray.
In the illustration given, the deodorant droplets were scattered in the air. Sprays can also be contained within other gaseous mediums, though. One demonstration of this is where chemicals are sprayed into the gasses produced in power plants, to remove pollutants.
Producing a spray can be referred to as atomization, and although this seems to suggest the liquid is divided into single atoms, this is not the case. Instead, a cloud of tiny drops of fluid is produced. The reasons for turning fluid into a spray are better appreciated by observing some situations where sprays are utilized. As the uses for spraying are so numerous, a few key examples will be selected.
Use of sprays is widespread in the manufacturing of food and beverages. Fresh grown foods are washed with sprays, and many ingredients are added in the form of a spray. The accuracy of a spray is ideal in cases like where spice must be added. Add too much and the result will put many people off, but get it just right and it adds a pleasant kick. This same accuracy allows great control over how additives are applied, ensuring that nowhere is missed out.
Spray drying is another important process in the manufacturing of edible products. Liquid foods and drinks are dried by spraying them into hot air, which evaporates the moisture and leaves a powder. This procedure is used to create additives like colorings and spices, as well as more common staples such as instant coffee or powdered milk.
Although spray drying is not well known outside the manufacturing industry, a more familiar spray process is that of spray painting. Most people know of the simple and common cans of spray paint, but there are also more clever applications of spray painting. One such use involves giving the paint an electric charge, while the object being painted is made to attract the paint by giving it the opposite charge. Often this electrostatic spray painting provides superior results to painting with a brush, as it can be impossible to access certain areas with a brush.
One final example of the importance of spray techniques is that of fuel sprays. Fuel sprays are used in a huge variety of engine types, such as petrol, diesel and jet engines, as well as steam boilers and even rocket engines. The fuel is atomized prior to being ignited, and the fact it has been atomized is very important. This maximizes the surface area of the fuel and mixes it with the air, creating the optimum conditions for combustion.
As can be seen, the familiar but poorly understood concept of the spray touches our lives in numerous and powerful ways, whether that is in the power stations that heat our homes, the food we eat, common products like deodorants and spray paint, or the vehicles that make our world run.
In the illustration given, the deodorant droplets were scattered in the air. Sprays can also be contained within other gaseous mediums, though. One demonstration of this is where chemicals are sprayed into the gasses produced in power plants, to remove pollutants.
Producing a spray can be referred to as atomization, and although this seems to suggest the liquid is divided into single atoms, this is not the case. Instead, a cloud of tiny drops of fluid is produced. The reasons for turning fluid into a spray are better appreciated by observing some situations where sprays are utilized. As the uses for spraying are so numerous, a few key examples will be selected.
Use of sprays is widespread in the manufacturing of food and beverages. Fresh grown foods are washed with sprays, and many ingredients are added in the form of a spray. The accuracy of a spray is ideal in cases like where spice must be added. Add too much and the result will put many people off, but get it just right and it adds a pleasant kick. This same accuracy allows great control over how additives are applied, ensuring that nowhere is missed out.
Spray drying is another important process in the manufacturing of edible products. Liquid foods and drinks are dried by spraying them into hot air, which evaporates the moisture and leaves a powder. This procedure is used to create additives like colorings and spices, as well as more common staples such as instant coffee or powdered milk.
Although spray drying is not well known outside the manufacturing industry, a more familiar spray process is that of spray painting. Most people know of the simple and common cans of spray paint, but there are also more clever applications of spray painting. One such use involves giving the paint an electric charge, while the object being painted is made to attract the paint by giving it the opposite charge. Often this electrostatic spray painting provides superior results to painting with a brush, as it can be impossible to access certain areas with a brush.
One final example of the importance of spray techniques is that of fuel sprays. Fuel sprays are used in a huge variety of engine types, such as petrol, diesel and jet engines, as well as steam boilers and even rocket engines. The fuel is atomized prior to being ignited, and the fact it has been atomized is very important. This maximizes the surface area of the fuel and mixes it with the air, creating the optimum conditions for combustion.
As can be seen, the familiar but poorly understood concept of the spray touches our lives in numerous and powerful ways, whether that is in the power stations that heat our homes, the food we eat, common products like deodorants and spray paint, or the vehicles that make our world run.
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Important Functions Of Fluids In The Form Of A Spray
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Reviewed by Mohamed
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janvier 26, 2014
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