【實用生產應用app】FanSpec|最夯免費app-綠色工廠好玩App

FanSpec helps to evaluate different fan specification for a given application based 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 evaluate 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. By default rectangular duct size is corresponding to the long side and short side depends upon the class and aspect ratio. For round and square ducts, the aspect ratio is taken as one. The total equivalent length data includes total duct length and resistance due to different duct fittings and terminal boxes.

Performance summary:

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