How Much Heat is Released When Steam Condenses?

Joseph Hebert
Owner at - HVAC Buster

Joseph is an HVAC technician and a hobbyist blogger. He’s been working as an HVAC technician for almost 13 years, and he started blogging just...Read more

The heat released when steam condenses is known as latent heat of vaporization. This value can be experimentally determined by measuring the change in temperature of a sample of water when it changes state from a liquid to a gas. The amount of heat released per unit mass of water is called the specific latent heat and varies depending on the temperature at which the phase change occurs.

For example, the specific latent heat of vaporization at 100°C is 2256 kJ/kg, whereas at 80°C it is only 2016 kJ/kg.

When steam condenses to water, a large amount of heat is released. This heat can be used to warm up the surrounding air or to power a turbine. The temperature of the steam when it first starts to condense is called the dew point.

The dew point is the temperature at which water vapor in the air starts to condense into liquid water.

Is Heat Released When Steam Condenses?

When water is heated, it begins to evaporate. This process requires energy, which is why steam is hotter than boiling water. As the water molecules vaporize and become steam, they take on a great deal of energy.

When steam condenses back into liquid water, that energy is released. In other words, heat is released when steam condenses. This release of heat can be used for a variety of purposes, such as powering turbines in power plants or providing warmth in homes and businesses.

The amount of heat released when steam condenses depends on a number of factors, including the temperature and pressure of the steam. Generally speaking, the higher the temperature and pressure of the steam, the more heat will be released when it condenses.

Is Heat Released During Condensation?

Yes, heat is released during condensation. This happens because when water vapor condenses, it releases the latent heat of vaporization. The latent heat of vaporization is the amount of energy needed to change a substance from a gas to a liquid.

For water, this latent heat is about 540 calories per gram. So, when water vapor condenses, it releases a lot of energy in the form of heat.

How Do You Calculate Heat Released by Condensation?

When water vapor in the air reaches its dew point temperature and condenses, it releases heat. The amount of heat released can be calculated using the latent heat of condensation. This is the amount of heat required to change 1 kg of water from a gas to a liquid at atmospheric pressure.

For water, the latent heat of condensation is 2,260 kJ/kg. So, if 1 kg of water vapor condenses and releases 2,260 kJ of heat, then 5 kg of water vapor would release 11,300 kJ (5 x 2,260) of heat.

How Much Energy is Released by the Condensation?

The answer to this question is not as simple as it may seem. To find the answer, we must first understand what condensation is and how it works. Condensation is the process by which water vapor in the air is converted into liquid water.

This can happen when warm air cools or when humid air comes into contact with a cold surface. The amount of energy released during condensation depends on the temperature difference between the air and the surface on which condensation occurs. For example, if warm air at 70 degrees Fahrenheit (21 degrees Celsius) comes into contact with a cold surface at 32 degrees Fahrenheit (0 degrees Celsius), the water vapor in the air will quickly turn to liquid water.

This process releases latent heat, or hidden heat, which warms the surrounding air. The amount of heat released is dependent on how much water vapor is present and how big the temperature difference is between the two surfaces. In this example, a lot of heat would be released because there is a large temperature difference between the two surfaces.

On the other hand, if humid air at 90 degrees Fahrenheit (32 degrees Celsius) comes into contact with a cold surface at 32 degrees Fahrenheit (0 degrees Celsius), much less heat will be released because there isn’t as big of a temperature difference between these two surfaces. The same goes for if warm air at 70 degrees Fahrenheit (21 degrees Celsius) contacts a cool surface that’s only slightly cooler than itself, such as 60 degree Fahrenheit (15 degree Celsius). In both cases, relatively little latent heat will be released because there isn’t a large temperature difference for water vapor to condense onto.

Does Condensation Release Heat

When water vapor in the air comes into contact with a cold surface, it condenses and releases heat. This process is called latent heat of condensation. It’s what makes your glass of ice water feel warm to the touch on a hot day.

Latent heat of condensation is used in many applications, including power generation, refrigeration, and air conditioning. In power plants, for example, steam from boiling water is used to spin turbines that generate electricity. The steam then cools and condenses back into water, releasing its latent heat in the process.

Refrigerators and air conditioners work similarly. They use chemicals like Freon to absorb heat from the inside of a fridge or room and release it outside. As the chemicals cool, they condense and release their latent heat.

The latent heat of condensation can also be harnessed to create “cooling blankets” that are used in hospitals to keep patients comfortable during surgery or other medical procedures. The blankets are filled with a gel that quickly absorbs body heat and then releases it as it evaporates back into the air.

Heat of Condensation Formula

When water vapor condenses to form liquid water, it releases latent heat. This release of energy is called the heat of condensation. The heat of condensation can be calculated using the formula:

Q = m * L Where Q is the amount of heat released (in Joules), m is the mass of water vapor that condensed (in kilograms), and L is the latent heat of condensation (in Joules per kilogram). The latent heat of condensation for water is 2,260 J/kg.

This means that for every kilogram of water vapor that condenses, 2,260 Joules of energy are released. Let’s say we have 1 kg of water vapor that condenses. Using the formula above, we can calculate that the heat of condensation will be 2,260 Joules.

Heat of Solidification

When a substance changes from a liquid to a solid, the process is called solidification. While this change may seem like it happens instantaneously, there is actually a lot going on at the atomic level. In order for atoms to arrange themselves into the orderly structure of a solid, they must first overcome their mutual attraction to each other.

This takes energy, which manifests as heat. The amount of heat released during solidification varies depending on the material. For example, water releases about 334 Joules of heat per gram when it freezes (this is called the latent heat of fusion).

In contrast, metals generally release very little heat when they solidify. This is because their atoms are already arranged in an orderly fashion and don’t have to do much work to achieve a solid state. Interestingly, some materials can actually absorb heat when they undergo solidification.

This means that their temperature decreases during the process. One common example is “phase change” materials that are used in cooling applications such as refrigerators and air conditioners. These materials are designed to absorb large amounts of heat when they melt and then release that heat when they resolidify.

Conclusion

When steam condenses, it releases a large amount of heat. This heat can be used to power machinery or to heat buildings. Steam condensation is a very efficient way to generate energy.

Joseph is an HVAC technician and a hobbyist blogger. He’s been working as an HVAC technician for almost 13 years, and he started blogging just a couple of years ago. Joseph loves to talk about HVAC devices, their uses, maintenance, installation, fixing, and different problems people face with their HVAC devices. He created Hvacbuster to share his knowledge and decade of experiences with people who don’t have any prior knowledge about these devices.