/ Industrial & Engineering Instruments / Mechanical Engineering Equipments / Fluid Mechanics Lab /


Product Code : MTFM-201B/CC

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Product Description


The present set-up is designed to study the forced draft centrifugal blower characteristics. The set-up consists of a variable speed DC motor, coupled to a blower housing and fan. The fan is also called as impeller. The motor rotates the impeller inside the housing, and due tocentrifugal force, exerted by the vanes of the impeller, partial pressure is developed at the inlet and outlet of the housing. A speed control unit facilitates user, to have experimentations on different speeds, to enhance the study. RPM of the impellers are measured with the help of electronic proximity sensor. The air flows through a pipe where instrumentation has been done to measurethe pressure head, velocity and flow. A pitot tube with differential pressure transmitter is provided to observe and find out the static and dynamic head of air, flowing through the pipe line. The set-up also provided with three impellers of different curved vanes to understand the effect of vanes arrangement on performance and efficiency of the blower. The present set-up has a facility to interface the system with computer which enables to log the experimental data using computer. The educational software and data-logging package has been developed for unit. The software environment base is of LabView of NATIONAL INSTRUMENTS, USA. This softwareis compatible to interfacing unit designed.This software package provides a comprehensive educational software environment within which the investigations can be performed. This software is capable to tabulate the sample readings according to the requirement of experiment under study and results obtained can be compared. The real time data acquisition can be done by interfacing the set-up with computerusing software. Software allows the user to have control on data logging, printing the stored data, preparing spread sheets in Excel etc.

Technical Details

••Drive : DC motor, 1HP Standard make. ••Speed Control Unit : Thyristor Controlled. ••Blower : Centrifugal, Forced Draft Type. ••Impeller (3 Nos.) : Interchangeable. 1. Forward Curved Vane. 2. Backward Curved Vane. 3. Radial Curved Vane. ••Pitot Tube with manometer : For Static, Dynamic & Differential Pressure measurement. ••Pressure Measurement : By Differential Pressure Transmitter. ••Energy meter : For power measurement. ••RPM measurement : By Proximity sensor. ••Control Panel Comprises of : MCB : For Over load Protection. Standard make On/Off Switch, Mains Indicator, etc. ••An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will be provided along with the Apparatus. ••The whole set-up is well designed and arranged on a rigid structure painted with industrial PU Paint.

Experimentation/Learning Objectives

••To study the effect of forward curved, backward curved and radial impeller. ••To find out the discharge, head and efficiency of the Centrifugal Blower. ••To plot the graph Efficiency vs Discharge. ••To plot the graph Discharge vs Head.

Utilities Required

••Electricity supply: Single phase, 220V AC, 50 Hz, 5-15 Amp. combined socket with earth connection. Earth voltage should be less than 5 volts. ••Floor Area: 3 m x 0.75 m. ••Computer System: i-3 processor with DVD Drive, Windows 7/8, MS-Office pre-loaded. One USB slot required in PC for Data Acquisition Card.

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