Engineering

How to Calculate and Solve for Inflow Time | Irrigation Water Requirement

Last Updated on April 21, 2024

The image above represents inflow time. Two essential parameters are needed to calculate inflow time: Opportunity Time (Tnand Lag Time (TL).

The formula for calculating inflow time:

Ta = Tn – TL

Where:

Ta = Inflow Time
Tn = Opportunity Time
And, TL = Lag Time

Let’s solve an example;
Find the inflow time when the opportunity time is 36 and the lag time is 9.

This implies that;

Tn = Opportunity Time = 36
As well as TL = Lag Time = 9

Ta = Tn – TL
Hence, Ta = 36 – 9
Ta = 27

Therefore, the inflow time is 27.

Calculating the Opportunity Time when the Inflow Time and the Lag Time are Given

Tn = Ta + TL

Where;

Tn = Opportunity Time
Ta = Inflow Time
And, TL = Lag Time

Let’s solve an example;
Find the opportunity time when the inflow time is 28 and the lag time is 12.

This implies that;

Ta = Inflow Time = 28
TL = Lag Time = 12

So, Tn = Ta + TL
Tn = 28 + 12
Tn = 40

Therefore, the opportunity time is 40.

Read more: How to Calculate and Solve for Inflow Time (Net Application Depth) | Irrigation Water Requirement

Calculating the Lag Time when the Inflow Time and the Opportunity Time are Given.

TL = Tn – Ta

Where;

TL = Lag Time
Ta = Inflow Time
And Tn = Opportunity Time

Let’s solve an example;
Find the lag time when the inflow time is 18 and the opportunity time is 20.

This implies that;

Ta = Inflow Time = 18
Tn = Opportunity Time = 20

So, TL = Tn – Ta
TL = 20 – 18
TL = 2

Therefore, the lag time is 2.

Read more: How to Calculate and Solve for Lag Time | Irrigation Water Requirement

How to Calculate Inflow Time Using Nickzom Calculator

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the inflow time.

To get the answer and workings of the inflow time 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 for NGN 2,000 per annum 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 Agricultural under Engineering.

Now, Click on Irrigation Water Requirement under Agricultural

Now, Click on Inflow Time under Irrigation Water Requirement

The screenshot below displays the page or activity to enter your values to get the answer for the inflow time according to the respective parameters, which are the Opportunity Time (Tn) and Lag Time (TL).

How to Calculate and Solve for Inflow Time | Irrigation Water Requirement

Now, enter the values appropriately and accordingly for the parameters as required by the Opportunity Time (Tn) is 36 and Lag Time (TL) is 9.

How to Calculate and Solve for Inflow Time | Irrigation Water Requirement

Finally, Click on Calculate

How to Calculate and Solve for Inflow Time | Irrigation Water Requirement

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the inflow time and presents the formula, workings, and steps, too.

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