Fan System Assessment Tool

The Fan System Assessment Tool (FSAT) quantifies energy consumption and energy savings opportunities in industrial fan systems. It also determines the economic benefit of system alterations. FSAT allows users to input information about their fans and motors and calculates the energy used by the fan system and the overall system efficiency. It approximates potential energy and cost savings, and helps determine which options are most economically viable when multiple opportunities exist.

Capabilities of FSAT include:

  • Determining fan system efficiency
  • Identifying degraded fans
  • Collecting data for trending system operation
  • Quantifying potential costs and energy savings for various operating configurations

The tool also enables the users to calculate the differences between rated and installed performance due to:

  • High duct velocity
  • Discharge dampers locked in position
  • Obstructed inlets
  • Incorrectly sized fans
  • Poor duct geometry
  • Degraded impellers
Development Status Products

Fan System Assessment ToolCosts & Benefits

Parent Process: Cross Cutting Technology
Energy Savings Potential

US flag Cumulative annual energy savings of 52.8 TJ/y have been realized with the use of this tool.

CO2 Emission Reduction Potential

US flag Cumulative COsavings of 3022 t-CO2/y have been realized with the help of this tool.


US flag Cumulative cost savings of around US $346 thousand/y have been realized with the use of this tool.

Fan System Assessment Tool Publications

The State–of-the-Art Clean Technologies (SOACT) for Steelmaking Handbook


The State–of-the-Art Clean Technologies (SOACT) for Steelmaking Handbook is developed as part of the Asia-Pacific Partnership on Clean Development and Climate program and seeks to catalog the best available technologies and practices to save energy and reduce environmental impacts in the steel industry. Its purpose is to share information about commercialized or emerging technologies and practices that are currently available to increase energy efficiency and environmental performance. 

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