Create hydraulic separation

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Pressure drops and flow rates for closed loop supply

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and return piping networks can be calculated in red

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and the values displayed in the properties of the pump in the system.

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This is achieved first by creating a suitable system

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that meets the criteria outlined in the mechanical settings.

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And second by ensuring the option to enable analysis is checked.

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Ensure the current view is set to HV

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floor plans. One mec

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the current view shows a closed loop hydraulic piping network.

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And by selecting the pump near the chiller,

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the calculated values for pressure drop and

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flow are displayed for the entire system.

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The properties also show that the pump is part of the critical path,

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selecting any of the pipes in this chilled water

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flow and return network will display the system names,

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chilled water flow, 001 and chilled water, return 001,

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activating the system inspector, which we'll look at in more detail.

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In a later video

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will also show that the main run and each of the loops

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to the phone call units are part of the same physical system.

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Each loop from the main run has a fan core unit

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and an in line pump and in its current state,

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it's not as easy to establish the same

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values that are available for the entire system.

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On inspection of an in line pump,

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it can be seen from the properties that it is part of the chilled water flow 001 system

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and the flow rate to the phone call unit is available.

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But the pressure drop for this specific section is not

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hydraulic separation of piping networks,

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maintains physical connectivity but allows for analytical separation of loops.

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So that values for specific loops within a larger system can be established.

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Select the float and return pipes to the first fan core unit.

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And from the ribbon select add separation,

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there are two indicators that separation has occurred.

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Firstly, small directional symbols will appear at the point of separation.

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And secondly, selecting a section of pipe will show the system name has changed,

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select the section of pipe before the pump.

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And a review of the mechanical flow properties shows that this is now considered a

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loop boundary and is part of the critical path for the purposes of calculation,

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select the in line pump and note the current values for pressure drop and flow.

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Any changes made in this section,

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the water flow rates and pressure drop are now easier to monitor,

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change the diameter of the float and return pipes to one inch.

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Then review the properties at the in line pump,

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then

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change the chilled water flow rate. At the phone

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call unit to six gallons per minute

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and again, review the properties at the pump.

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The system inspector will also see this part

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of the overall system as being analytically separated.

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Select the phone call unit and activate the system inspector.

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Note the names of the two connected systems.

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Select either one and then use the

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system inspector to display the associated values

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when separation is no longer required.

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Select the original pipes and from the ribbon choose remove separation

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by using hydraulic separation in the piping networks. Shown. In this example,

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we have been able to review and evaluate individual piping

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loops that have been separated analytically from the main system,

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a workflow that allows mechanical designers to consider such areas as the

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size of piping and equipments suitability at a more detailed level.