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One large industrial application of evaporation is evaporative cooling. When we spray water into the air, some of it evaporates. And when water evaporates, the water that is left is cooler because the evaporating water takes heat with it. You know this because if your arm is wet and a fan or breeze blows air across it, the skin of your arm feels cooler immediately. (Lick the back of your hand and blow on it.) Evaporative cooling is used on a massive scale to remove the heat of industrial processes. Just one example of evaporative cooling would be the cooling of condensers beneath steam turbines. This allows the extraction of the remaining heat from the steam in the exhaust stream from the turbine, and the steam will condense. The condensed steam, which is now water, is pumped back through a heat exchanger to warm it back up prior to it being pumped back into the steam generator of a nuclear fired, or a coal or fuel oil fired electric generating plant. (The steam turbine rolls an electric generator to create electricity.) We see evaporation used to remove water from products or materials in industrial processes. There are large scale evaporation ponds that concentrate salt, which is produced by the ton daily in or for industrial nations. Cargill has many acres in the San Francisco Bay area that are concentrating salt by natural evaporation, and they're doing that as you read this. Industry has large machines (evaporators) that tumble products or materials through them to expose them to an air stream to dry them. (We often heat that air we blow through the machine.) Milk is dehydrated in a large evaporator, and evaporated milk is used in more food products than you can count. We evaporate substances off in many industrial processes, and sometimes to remove water, but not always. We can recover substances that have been evaporated off. In the production of refined petroleum products, more volatile compounds are evaporated off to separate the more crude components. That's how we get vehicle fuels. And evaporation is the key to all distillation operations, like the ones that produce fuels or the ones that produce the spirits, the vodka, whiskey, rum and others, that we like to drink. Evaporation concentrates whatever is left after the water or other solvent is evaporated off. Concentration is useful in the chemical industry, and in many other industrial areas. Sometimes we recover the evaporated solvent or material. Distilleries do this, and so does the petrochemical industry and desalination plants (which make fresh water from salt water). Sometimes we just want to "get rid" of the solvent to recover a more concentrated product (either a useful or a waste product) for further processing or treatment. Evaporation is a physical process (as opposed to a chemical one) that allows separation and concentration of all kinds of things, in addition to uses in industrial cooling.

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Related Questions

What does it mean to have evaporative cooling?

A device that uses evaporative cooling cools air through the evaporation of water. The evaporation of water enables a very quick transfer of heat, enabling many applications.


Why is cooling always caused during evaporation?

Cooling occurs during evaporation because the process requires energy to convert liquid water into water vapor. This energy is taken from the surrounding environment, leading to a decrease in temperature.


How evaporation exhibit the cooling effect?

Evaporation needs heat energy. During the process of evaporation heat is absorbed by the other body thereby cooling it


What is cooling effect?

A cooling effect refers to the process of lowering the temperature of an object or an area, thus reducing its heat energy. This can be achieved through various methods such as evaporation, conduction, or convection to dissipate heat from the system. Cooling effects are commonly used in air conditioning systems, refrigerators, and cooling vests, among other applications.


Applications of evaporation in day to day life?

Evaporation is commonly used in day-to-day life for drying clothes, preserving food through dehydration, and in the production of certain medications and cosmetics. It is also utilized in cooling systems, such as in air conditioners and refrigerators, where the heat absorbed from the air causes evaporation of a refrigerant to lower the temperature.


What is the definition of evaporation cooling?

mum


What is process cooling?

evaporation Cooling is a decrease of the temperature of a system or material.


How do you find out the effect of evaporation on skin?

Evaporation causes cooling . The skin cools when evaporation takes place.


Why is evaporation considered a cooling process?

Evaporation is considered a cooling process because when a liquid evaporates, it absorbs heat energy from its surroundings in order to change from a liquid to a gas. This absorption of heat causes the surroundings to cool down, making evaporation a cooling process.


How to calculate size and capacity of cooling tower?

calculation for cooling tower evaporation capacity.


Where cooling occurred due to evaporation?

Cooling due to evaporation can occur in various places such as when sweat evaporates from our skin, causing a cooling effect on the body. Evaporative cooling is also used in air conditioning systems where water is evaporated to reduce the temperature of the air. Natural bodies of water like lakes and oceans also experience cooling through evaporation processes.


How does evaporation help humans on ahot day?

evaporation helps us by cooling us down! :)