Fan Spec Performance-UWP is for Windows 10 devices that evaluates key fan specification of any given application based on performance characteristics such as flow rate, static pressure, shaft power, and fan efficiency. It also determines the average duct velocity and duct pressure loss, permissible duct leakage rate for a given duct class that are very critical to satisfactory performance and energy efficiency.

Most manufacturers provide fan performance data in the form of fan curve (Q vs H). However, the operating point on this curve depends upon the total resistance offered by the duct system. This app helps application engineers to quickly evaluates different options available in selection and application of fans.

Fan properties:
Fans are categorized based on the type of flow. The flow can be either axial or radial by centrifugal action. The users can edit and enter key fan specification data as shown in the following screen shot.

Gas properties:
By default Air is used as gas medium and its properties are updated based on the input temperature. For gases other than air, the property data need to be entered including molecular weight.

Duct system
Users can choose any duct system based on cross section, class, size and material. Upon selection, standards for maximum permissible duct leakage is auto updated. The size of a rectangular duct is corresponding to the long side and the short side is depends upon the class and aspect ratio. The total equivalent length data includes total duct length and resistance due to duct fittings and terminal boxes.

Performance summary:
A comprehensive summary is provided as shown in the screen shot for different performance characteristics of a fan-duct system. App notes serves as a quick reference guide that has definitions and computation logic to determine different fan performance characteristics and validation tests.