THE PHENOMENON OF SWEATING GOODS AND THE WAY HVLS INDUSTRIAL CEILING FANS HELP ENSURE THE QUALITY OF GOODS

THE PHENOMENON OF SWEATING GOODS AND THE WAY HVLS INDUSTRIAL CEILING FANS HELP ENSURE THE QUALITY OF GOODS

What is the phenomenon of “fog” in the air? What is the sweating incident? The reason is why? How do these phenomena affect goods in the process? In this article, Greentec will answer these questions as well as give advice to ensure the quality of goods.

What is moisture in the air?

Because our earth has about 70% of the area covered by water, when the air temperature is increased by the radiation of the sun, the wind blows the water molecules at the liquid surface apart and flies. into the air, just like that in the air there will be a fairly large amount of small particles of water molecules. And the phenomenon in the air with tiny particles of water mixed into the air and cooling is called “humidity” – this is a measure of the amount of water vapor in the air (grams / liter) … therefore, there is always a certain amount of moisture in the air; if the humidity is high, the air is cool and humid; conversely, when the humidity is low, the air is hot and dry.

What is the dew point?

In the air at a certain pressure when saturated, the rate at which water vapor evaporates to create the humidity equal to the rate at which water vapor condenses into water, this is called the saturation point in the air, this temperature is called saturated temperature, or “dew point,”

What is the “fog” phenomenon?
The higher the temperature in the air, the more water vapor evaporates and the higher the saturation pressure in the air. Meanwhile, a cold breeze blows across, causing the air temperature in the area to drop dramatically and lower than the dew point in the air, which is the reason why water vapor in the air condenses. again into large pieces and the wind blows away everything around them, so people call it “Mist …”.

What is the phenomenon of sweating goods?


Let us take the example 1 is an iced coffee cup:

When we sit and drink coffee outdoors (not cold rooms), the air is having a certain amount of moisture (and is in a state of saturation). When an iced coffee cup is brought out and placed on a table, the temperature of the iced coffee cup is lower than the surrounding environment, and on the surface of the cup (moisture in the surrounding air) occurs. is the temperature of decay (lower than the dew point); At this time, the entire steam surrounding the coffee cup will condense on the walls of the coffee cup and form water droplets. This phenomenon is called the sweating of goods. (The glass by glass doesn’t have “sweat”).

Example 2: Row of green peas exposed to heavy sunlight and put into a glass jar with tight lid

When green beans are exposed to high energy will heat up and the water in green beans will escape and evaporate. At this point, we pour all of the sun-pea green beans into a sealed glass jar, the phenomenon will be as follows: all the green beans continue to escape the evaporation of water into the air (because green beans have water level) and due to the closed jar, the water vapor in the bottle will hover around in the jar causing the temperature in the tank to rise, high dew point. When it is cool, the air temperature drops low, causing the temperature of the shell to decrease and lower than the dew point in the bottle and water vapor will condense on the walls of the jar and flow back into the green pea and the green pea broken or sprouted.

Example 3: Our warehouse contains rolled iron and steel.

Suppose we store rolled steel items (general steel products) in the warehouse and close the warehouse after 1 night, around 8am in the morning and the temperature in the air increases. When we open the warehouse door incorrectly and the wind blows into the warehouse, the phenomenon occurs as follows:

When the iron and steel store in the warehouse after 01 night, the steel will be cold (due to the temperature in the warehouse) so the dew point is low. When we open the door, the draft draws hot air and more steam into the warehouse, causing the temperature inside the warehouse to rise, but the temperature on the surface of the steel cannot rise immediately leading to condensation of steam and water. deposited on the metal surface causes steel to rust quickly and reduce its quality.

Example 4: Bulk or packed rice is stored in closed ship holds and transported across different hot and cold seas.

We should know that any agricultural product has a certain water content within it, Rice is also an agricultural product so there is a certain amount of water inside. When the rice is poured into the hold, close the hatch. When the ship passes by the hot waters, causing the hull to heat up, the iron hull should conduct heat well quickly making the temperature in the tunnel warm (air in the tunnel), so the water in the rice grains will heat up. and evaporation in the tunnel air creates high humidity, the dew point temperature in the tunnel increases.

As the vessel moves into cooler, colder waters, the hull will cool and lower the surface temperature of the vessel to below the dew point in the tunnel, causing the vapor in the hold to condense on the surface of the ship wall and flow back. goods and goods will become damaged again due to mold or deterioration of their quality.

Through the above examples, we can see how sweating affects the goods during storage and transportation (especially for long-term storage and long-distance transportation in closed containers).

Recommendations and ways to avoid:

  • We must ensure regular and proper ventilation (bulk cargo).
  • Must be located far away from the warehouse wall or ship’s wall (bagged goods)
  • Regularly check the warehouse as well as the cargo hold to promptly detect and handle immediately.
  • Check carefully the temperature inside and outside the warehouse as well as in the shipyard and outside the air …

How do HVLS industrial ceiling fans help ensure the quality of goods?

In warehouses, the uneven distribution of heat in the air causes water to accumulate on exposed materials, negatively affecting quality. Hvls industrial ceiling fans can solve these problems directly and effectively. HVLS industrial ceiling fans operate on the principle of cool air movement breaking the moisture-saturated boundary around the body and increasing the evaporation rate to create a cooling effect. It promotes the process of air circulation, continuous exchange between the atmosphere in the warehouse and the fresh outside air continuously and creates a balanced environment between inside and outside the warehouse. Therefore, HVLS industrial ceiling fans improve the quality of air in the warehouse and create a pleasant, dry and ventilated working environment, thereby improving the working efficiency and ensuring the quality of goods.

What is the phenomenon of “fog” in the air? What is the sweating incident? The reason is why? How do these phenomena affect goods in the process? In this article, Greentec will answer these questions as well as give advice to ensure the quality of goods.

What is moisture in the air?

Because our earth has about 70% of the area covered by water, when the air temperature is increased by the radiation of the sun, the wind blows the water molecules at the liquid surface apart and flies. into the air, just like that in the air there will be a fairly large amount of small particles of water molecules. And the phenomenon in the air with tiny particles of water mixed into the air and cooling is called “humidity” – this is a measure of the amount of water vapor in the air (grams / liter) … therefore, there is always a certain amount of moisture in the air; if the humidity is high, the air is cool and humid; conversely, when the humidity is low, the air is hot and dry.

What is the dew point?

In the air at a certain pressure when saturated, the rate at which water vapor evaporates to create the humidity equal to the rate at which water vapor condenses into water, this is called the saturation point in the air, this temperature is called saturated temperature, or “dew point,”

What is the “fog” phenomenon?
The higher the temperature in the air, the more water vapor evaporates and the higher the saturation pressure in the air. Meanwhile, a cold breeze blows across, causing the air temperature in the area to drop dramatically and lower than the dew point in the air, which is the reason why water vapor in the air condenses. again into large pieces and the wind blows away everything around them, so people call it “Mist …”.

What is the phenomenon of sweating goods?


Let us take the example 1 is an iced coffee cup:

When we sit and drink coffee outdoors (not cold rooms), the air is having a certain amount of moisture (and is in a state of saturation). When an iced coffee cup is brought out and placed on a table, the temperature of the iced coffee cup is lower than the surrounding environment, and on the surface of the cup (moisture in the surrounding air) occurs. is the temperature of decay (lower than the dew point); At this time, the entire steam surrounding the coffee cup will condense on the walls of the coffee cup and form water droplets. This phenomenon is called the sweating of goods. (The glass by glass doesn’t have “sweat”).

Example 2: Row of green peas exposed to heavy sunlight and put into a glass jar with tight lid

When green beans are exposed to high energy will heat up and the water in green beans will escape and evaporate. At this point, we pour all of the sun-pea green beans into a sealed glass jar, the phenomenon will be as follows: all the green beans continue to escape the evaporation of water into the air (because green beans have water level) and due to the closed jar, the water vapor in the bottle will hover around in the jar causing the temperature in the tank to rise, high dew point. When it is cool, the air temperature drops low, causing the temperature of the shell to decrease and lower than the dew point in the bottle and water vapor will condense on the walls of the jar and flow back into the green pea and the green pea broken or sprouted.

Example 3: Our warehouse contains rolled iron and steel.

Suppose we store rolled steel items (general steel products) in the warehouse and close the warehouse after 1 night, around 8am in the morning and the temperature in the air increases. When we open the warehouse door incorrectly and the wind blows into the warehouse, the phenomenon occurs as follows:

When the iron and steel store in the warehouse after 01 night, the steel will be cold (due to the temperature in the warehouse) so the dew point is low. When we open the door, the draft draws hot air and more steam into the warehouse, causing the temperature inside the warehouse to rise, but the temperature on the surface of the steel cannot rise immediately leading to condensation of steam and water. deposited on the metal surface causes steel to rust quickly and reduce its quality.

Example 4: Bulk or packed rice is stored in closed ship holds and transported across different hot and cold seas.

We should know that any agricultural product has a certain water content within it, Rice is also an agricultural product so there is a certain amount of water inside. When the rice is poured into the hold, close the hatch. When the ship passes by the hot waters, causing the hull to heat up, the iron hull should conduct heat well quickly making the temperature in the tunnel warm (air in the tunnel), so the water in the rice grains will heat up. and evaporation in the tunnel air creates high humidity, the dew point temperature in the tunnel increases.

As the vessel moves into cooler, colder waters, the hull will cool and lower the surface temperature of the vessel to below the dew point in the tunnel, causing the vapor in the hold to condense on the surface of the ship wall and flow back. goods and goods will become damaged again due to mold or deterioration of their quality.

Through the above examples, we can see how sweating affects the goods during storage and transportation (especially for long-term storage and long-distance transportation in closed containers).

Recommendations and ways to avoid:

  • We must ensure regular and proper ventilation (bulk cargo).
  • Must be located far away from the warehouse wall or ship’s wall (bagged goods)
  • Regularly check the warehouse as well as the cargo hold to promptly detect and handle immediately.
  • Check carefully the temperature inside and outside the warehouse as well as in the shipyard and outside the air …

How do HVLS industrial ceiling fans help ensure the quality of goods?

In warehouses, the uneven distribution of heat in the air causes water to accumulate on exposed materials, negatively affecting quality. Hvls industrial ceiling fans can solve these problems directly and effectively. HVLS industrial ceiling fans operate on the principle of cool air movement breaking the moisture-saturated boundary around the body and increasing the evaporation rate to create a cooling effect. It promotes the process of air circulation, continuous exchange between the atmosphere in the warehouse and the fresh outside air continuously and creates a balanced environment between inside and outside the warehouse. Therefore, HVLS industrial ceiling fans improve the quality of air in the warehouse and create a pleasant, dry and ventilated working environment, thereby improving the working efficiency and ensuring the quality of goods.