Using the Blower Device in PIPE-FLO Advantage 17

Using the Blower Device in PIPE-FLO┬« Advantage 17

Introduction

The new Blower device is used to size or evaluate the performance of a blower in systems modeled in PIPE-FLO Advantage 17. Blowers without performance curve data are considered to be in a "sizing" mode and can be set to define the operational flow rate, inlet pressure, outlet pressure, differential pressure, or a pressure ratio requirement that must be achieved by the Blower. Performance curve data is entered as data sets of speed, flow rate, power, and temperature rise for a fixed value of pressure rise. Performance data also allows the Blower to be set to a fixed operating speed.

Design Data for a Blower

  • Name (required): unique identifier, default set by Auto-Naming
  • Design Status: non editable.  Will change from Undesigned to Sizing to Designed when the sufficient operational and design data is entered, respectively.
  • Elevation (required): where the blower is in relation to the reference zero elevation datum of the system. 
  • Blower Curve (optional): enter the Blower Curve performance data for additional calculations such as speed, input power, and efficiency. The data table allows for copying the data from an external source and pasting it into the table.
  • Operation (required): the Operation allows for modeling multiple process control scenarios by setting the Flow Rate, Discharge Pressure, Suction Pressure, Differential Pressure. The blower can be placed in Temperature Control mode by selecting the Blower as a Flow Control Device at a Heat Transfer Device. The Fixed Speed mode can only be used if the Blower Curve data is entered.   

Calculated Results for a Blower

Linear interpolation/extrapolation is used on the density-compensated data sets. Affinity rules are NOT applied to the blower.

  • Flow Rate
  • Differential Total Pressure
  • Differential Static Pressure
  • Pressure Ratio
  • Inlet Total Pressure
  • Inlet Static Pressure
  • Outlet Total Pressure
  • Outlet Static Pressure
  • delta T
  • Speed
  • Input Power
  • Output Power 
  • Efficiency
  • % Deviation

Blower Calculations

Blowers can be modeled along with Compressible Pipe devices to be included in the compressible fluid flow analysis, or they can be modeled with incompressible Pipe devices. In sizing modes, the system configuration, boundary conditions, and Operation setting determine the Blower results. A fully designed Blower with performance curve data is density adjusted based on the inlet Fluid Zone properties and the curve data reference fluid properties. Performance curve data is linearly interpolated or extrapolated, but Affinity Rules are not used. See the program Help File for equations used for the Blower.

Blower Applications