# How to Calculate and Solve for Enthalpy of Wet Stream | Enthalpy

**Last Updated on May 23, 2024**

The image above represents enthalpy for wet steam. To calculate enthalpy for wet steam, three essential parameters are needed and these parameters are **Dryness Fraction (x), Enthalpy of Water (h _{f})** and

**Enthalpy of Vapourization (h**

_{fg}).**The formula for calculating enthalpy for wet steam:**

h = h_{f} + xh_{fg}

Where the following applies:

h = Enthalpy of Wet Steam

x = Dryness Fraction

h_{f} = Enthalpy of Water

h_{fg} = Enthalpy of Vapourization

Let’s solve an example;

Find the enthalpy of wet steam when the dryness fraction is 4, the enthalpy of water is 6 and the enthalpy of vapourization is 8.

This implies the following:

x = Dryness Fraction = 4

h_{f} = Enthalpy of Water = 6

And then, h_{fg} = Enthalpy of Vapourization = 8

h = h_{f} + xh_{fg}

That is, h = 6 + 4 x 8

h = 6 + 32

h = **38**

Therefore, the **Enthalpy of Wet Steam **is **38 J/Kg.**

**Calculating the Dryness Fraction when the Enthalpy of Wet Steam, the Enthalpy of Water and the Enthalpy of Vapourization are Given**

x = ^{h – hf} / _{hfg}

Where;

x = Dryness Fraction

h = Enthalpy of Wet Steam

h_{f} = Enthalpy of Water

And then, h_{fg} = Enthalpy of Vapourization

Let’s solve an example;

Find the dryness fraction when the enthalpy of wet steam is 14, the enthalpy of water is 8 and the enthalpy of vapourization is 2.

This implies that;

h = Enthalpy of Wet Steam = 14

h_{f} = Enthalpy of Water = 8

And then, h_{fg} = Enthalpy of Vapourization = 2

x = ^{h – hf} / _{hfg}

So, x = ^{14 – 8} / _{2}

x = ^{6} / _{2}

x = 3

Therefore, the **dryness fraction **is **3.**

Read more: How to Calculate and Solve for Dryness Fraction | Enthalpy

**Calculating the Enthalpy of Water when the Enthalpy of Wet Steam, the Dryness Fraction and the Enthalpy of Vapourization are Given**

h_{f} = h – xh_{fg}

Where:

h_{f} = Enthalpy of Water

h = Enthalpy of Wet Steam

x = Dryness Fraction

h_{fg} = Enthalpy of Vapourization

Let’s solve an example;

Find the enthalpy of water when the enthalpy of wet steam is 20, the dryness fraction is 4 and the enthalpy of vapourization is 3.

This implies that;

h = Enthalpy of Wet Steam = 20

x = Dryness Fraction = 4

h_{fg} = Enthalpy of Vapourization = 3

h_{f} = h – xh_{fg}

So, h_{f} = 20 – (4)(3)

h_{f} = 8

Therefore, the **enthalpy of water **is **8 J/Kg.**

Read more: How to Calculate and Solve for Entropy of Water | Enthalpy

**Calculating the Enthalpy of Vapourization when the Enthalpy of Wet Steam, the Dryness Fraction and the Enthalpy of Water are Given**

h_{fg} = ^{h – hf} / _{x}

Where:

h_{fg} = Enthalpy of Vapourization

h = Enthalpy of Wet Steam

x = Dryness Fraction

h_{f} = Enthalpy of Water

Let’s solve an example;

Find the enthalpy of vapourization when the enthalpy of wet steam is 32, the dryness fraction is 10 and the enthalpy of water is 2.

This implies that;

h = Enthalpy of Wet Steam = 32

x = Dryness Fraction = 10

h_{f} = Enthalpy of Water = 2

h_{fg} = ^{h – hf} / _{x}

So, h_{fg} = ^{32 – 2} / _{10}

h_{fg} = ^{30} / _{10}

h_{fg} = 3

Therefore, the **enthalpy of vapourization** is **3 J/Kg.**

**How to Calculate Enthalpy of Wet Stream Using Nickzom Calculator**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the enthalpy of wet steam.

To get the answer and workings of the enthalpy of wet steam using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials and Metallurgical **under **Engineering****.**

Now, Click on **Chemical Reaction Thermodynamics**** **under **Materials and Metallurgical**

Then, Click on **Enthalpy** under **Chemical Reaction Thermodynamics
**

Now, Click on **Enthalpy of Wet Steam **under **Enthalpy**

The screenshot below displays the page or activity to enter your values, to get the answer for the enthalpy of wet steam according to the respective parameter which is the **Dryness Fraction (x), Enthalpy of Water (h _{f})** and

**Enthalpy of Vapourization (h**

_{fg}).Now, enter the values appropriately and accordingly for the parameters as required by the **Dryness Fraction (x)** is **4**,** Enthalpy of Water (h _{f})** is

**6**and

**Enthalpy of Vapourization (h**is

_{fg})**8.**

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the enthalpy of wet steam and presents the formula, workings and steps too.