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037-Sizing Module - Calculating CV_P1_P2_Flow Details (5:20)

1. Introduction of the control

1.1 Introduction of the control

Notes:

Once you are on the sizing screen, you will see a drop-down control under each condition label. Cv is selected here

by default as it is the most used option.

However, users can choose here to calculate for any of the following parameters: Cv, Flow Rate, P1, or P2.

Before we proceed to an example, let us see a brief overview for each of these options.


1.2 Brief overview

Notes:

The first option is Calculating Cv. The required inputs for this option include: Fluid Media (Liquid or Gas), Inlet

Temperature (T), Upstream Pressure (P1), Downstream Pressure (P2) and Flow Rate (Q).

The second option is Calculating Flow. The required inputs for this option include: Fluid Media (Liquid or Gas), Inlet

Temperature (T), Upstream Pressure (P1), Downstream Pressure (P2) and Capacity (CV)

The third option is Calculating P1. The required inputs for this option include: Fluid Media (Liquid or Gas), Inlet

Temperature (T), Downstream Pressure (P2), Flow Rate (Q) and Capacity (CV)

The fourth and final option is Calculating P2. The required inputs for this option include: Fluid Media (Liquid or Gas),

Inlet Temperature (T), Upstream Pressure (P1), Flow Rate (Q) and Capacity (CV)

Each of these options will be described by providing examples in the following sections of this training.

1.3 Calculating Capacity (Cv)

Notes:


This section provides an example of Calculating Capacity (Cv).

1.4 Calculating Cv

Notes:

Cv should be the default here.

If not, Select Cv to begin.

Notice that the text field next to the Capacity label, will gray out automatically, indicating that it is the required

output.

1.5 Input Temperature

Notes:


Let’s enter some sample data for this training.

As we have seen earlier, the inputs for Cv Calculation are: Fluid, Temperature, P1, P2 and Flow Rate.

1.6 Input Upstream Pressure

1.7 Input Downstream Pressure


1.8 Input Flow Rate

1.9 Click the 'Calculate' button

Notes:

After entering the data, click Calculate to get the required output.


1.10 Output cell

1.11 Fix Valve size for this training

Notes:

Let’s fix the valve size for other examples.


1.12 Fix pipe size for this training

Notes:

Let’s make the Pipe Size equal the Valve Size.

1.13 Re-Calculating Cv

Notes:

Click Calculate to get a new Capacity based on the changes we made.


1.14 New Required Cv

Notes:

We will use this Cv (3.5 approx.) as input capacity for other examples in this training.

1.15 Calculating Flow (Q)

Notes:

This section provides an example of Calculating Flow Rate (Q).


1.16 Click the dropdown control

Notes:

We have selected Water as the fluid for this training.

1.17 Calculating Flow Rate

Notes:

Select Flow from the Cv drop-down.

Since the fluid selected is in a Liquid state, the Liquid Flow Rate will be calculated in this example.

The text field next to the Liquid Flow Rate label, will gray out automatically, indicating that it is the required output.



Notes:

Let’s enter the sample data.

The inputs for Flow Rate calculation are: Fluid, Temperature, P1, P2, and Capacity.

1.19 Input P1


1.20 Input P2

1.21 Input Capacity


1.22 Calculate

Notes:

Click Calculate to get the required output.

1.23 Required Flow Rate

Notes:

Similarly, if the fluid selected was Gaseous, then Gas flow rate will be calculated based on Gas Cv equations.


1.24 Calculating

Upstream

Pressure (P1)

Notes:

This section provides an example of Calculating Upstream Pressure (P1).



1.26 Calculating P1

Notes:

Select P1 from the Cv drop-down.

Note that the text field next to the Upstream Pressure label, will gray out automatically, indicating that it is the

required output.


Notes:


The inputs for P1 calculation are: Fluid, Temperature, P2, Flow rate, and Capacity.


1.28 Input P2

1.29 Input Flow Rate


1.30 Input Cv

1.31 Calculate

Notes:

Click Calculate now to get the required output.


1.32 Calculated P1

1.33 Calculating Downstream Pressure (P2)

Notes:

This section provides an example of Calculating Downstream Pressure (P2).



1.35 Calculating P2

Notes:

Select P2 from the Cv drop-down.

Note that the text field next to the Downstream Pressure label, will gray out automatically, indicating that it is the

required output.



Notes:


The inputs for P2 calculation are: Fluid, Temperature, P1, Flow Rate, and Capacity.

1.37 Input P1


1.38 Input Flow Rate

1.39 Input Cv


1.40 Calculate

Notes:

Click Calculate to get the required output.

1.41 Calculated P2

Notes:

This concludes the demonstration of our four examples:

Calculating Cv

Calculating Flow

Calculating P1

and


Calculating P2

037-sizing module - calculating cv p1 p2 flow details (5 ... › performhelp › holidaylist ›...

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