Pipes

All pipes loaded for a calculation are listed in the table at the bottom of the Calculation page.

Fig. 1 Pipes Table


Actions available

  • New Calculation - reloads the calculation page for a new calculation, the current calculation is not deleted (if a record has been created)
  • New Pipe - opens up the Pipe dialog for data entry
  • Copy Pipe - enabled when a pipe has been selected. The pipe may be copied as a Direct Copy which replicates the source pipe, or if the pipe source pipe is designated as a Flow pipe as the paired Return. When copied as a return the new pipe is set as Return and the pipe temperature set to the Default Return if it exists.
  • Edit Pipe - enabled when a pipe has been selected. Opens the Pipe dialog for modification.
  • Delete Pipe - deletes the selected pipe.
  • Delete All Pipes - deletes all pipes for the calculation.
  • Upload Pipes from CSV - see the Importing from CSV page for details.
  • Toggle Calculation Details - Hides/Shows additional calculation fields
  • Run Calculation - Runs the heat Loss calculation
  • View Diagnostics - only enabled on request. Provides an logged analysis of the calculation steps for the selected pipe.

Fig. 2 Pipe Dialog


Pipe Description
  • Pipe Identity - A text description of the pipe
  • Location - Optional, the location
  • Primary/Secondary - Primary or Secondary status
  • Order - Listing order (pipes with the same order will be listed aphabetically)
  • Type - Riser (vertical) or Lateral (Horizontal)
  • Surrounding Medium - Partly information, internal or external being the status applied
  • Temperature of Process - The pipe temperature, in C
  • Temperature of Medium - The ambient temperature, in C
Pipe Construction Details
  • Pipe Material - the pipe composition, currently only Steel or Copper
  • Pipe Wall Thickness (mm) - thickness of the pipe wall
  • Diameter Normal - optional 'Normal' diameter, if specified this will automatically set the internal diameter
  • Diameter Internal (mm) - direct entry if Diameter Normal not specified
  • Surface Emissivity Uninsulated - set automatically from Pipe Material, but can be overriden
  • Pipe Thermal Conductivity - set automatically from Pipe Material, but can be overriden
Insulation Details
  • Insulation Material - select from dropdown
  • Insulation Thickness (mm) - thickness of insulation
  • Percentage Insulated - the percentage proportion of the pipe covered by insulation
  • Surface Material - select from the drop-down
  • Surface Emissivity Insulated - set automatically from Insulation Material, but can be overriden
  • Insulation Thermal Conductivity - set automatically from Insulation Material, but can be overriden
Flow and other Details
  • Flow Direction - Flow or Return. if set to Return the other inputs in this section will be hidden
  • HIU Model - The Heat Exchange Model
  • Keepwarm Active - set to Inactive or Active
  • Volume Weighted Average Return Temperature (C) - this will be used when copying a Flow pipe to Return
Version 1.0.0.100