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praftery edited this page Sep 12, 2019 · 9 revisions

CBE

This tool allows designers to quickly select and layout ceiling fans to meet a given airspeed requirement (or other constraint) in a given room.

The tool loads with a simple example use case for demonstration purposes. The user inputs are all entered in the left frame within the area with a light blue background. This includes expandable sections for describing: the room dimensions (e.g. length), fan related constraints (e.g. limit the percentage maximum fan speed), airspeed related constraints (e.g. the range of acceptable minimum airspeeds in the room), and advanced settings (e.g. the acceptable minimum mount distance). The inputs section ends with a table within which the user can select candidate fans from a list. This list has been pre-populated with 9 anonymous, real fans. Using the 'Add' button above the table, users can add specific fans that they are considering to this list and then select the newly added candidate(s) for consideration.

The 'Solutions' table (top right) then shows the set of solutions that are viable given the selected inputs - e.g. for this size room, for the selected candidate fan(s) - and selected constraints - e.g. this range of acceptable minimum air speeds in the room. Here, a viable solution is defined as one in which the ceiling fan meets safety requirements, conforms with recommended guidance, and provides results that are within the constraints defined by the user.

Note that in some cases there may not be a viable solution for a selected fan. For example, starting from the use case that loads automatically, selecting a 4.3m (14 ft) diameter fan as a candidate fan will not add any new solutions to the Solutions table. This is because there are no viable solutions - the selected 3.7 m (12.1ft) ceiling height is too low given the blade height requirements (this fan must be mounted with blades above 3.1m or 10 ft) and recommended mount distance (this fan requires a distance of 2.8 ft from balde to ceiling) for a fan of this size.

  • For more detailed information, read the User Guide.
  • For questions, please take a look at the FAQs.

If these resources don't provide the information you are looking for, or if you would like to contribute to this tool, please contact Paul Raftery directly.

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