Ventilation fan belt assembly, Mechanical Engineering

The aim of this assignment is for the student to use the information, data and analysis techniques presented during lectures to design a belt drive transmission for a ventilation fan.

Objectives: By the end of this assignment the student should be able to:

• Know and understand the use of standard analytical techniques to prove a design.

• Create and synthesise solutions to mechanical engineering problems.

• Apply modelling and drawing techniques using CAD.

• Locate information on and select materials and preparatory parts for particular purposes including bearings, ‘v' belts, pulleys, etc.

An ‘axial fan' is required to move air for ventilation purposes within an industrial building. The requirements for this fan are that the electric motor cannot be connected directly to the fan drive shaft but must sit outside the cowling and drive the fan by means of Wedge Drive Belts. Due to the operating requirements for adequate ventilation, the fan itself is Φ0.788m diameter and 0.147m long. To the central hub of the fan, a fan shaft can be attached as is deemed appropriate. It has already been established that, for the type of fan being used and its operating capacities, it will rotate at 750 rev/min and at a power requirement of 0.91kW. The cowling, support for the fan shaft, drive system, motor selection and motor mounting have yet to be decided and/or designed.

The cowling is to be a round tube, sufficient to house the fan and its support and secure the motor on its outside surface. The cowling should also have a flange at each end so that it can be connected up to ventilation ducting. The method of securing the whole assembly in its place of operation is not considered here and need not be designed for.
The air temperature varies from 10oC in winter to 35oC in summer with little humidity but carrying a substantial amount of dust and light debris.

The ventilation system is to operate all day and every day, 365 days a year, without maintenance except for checking and changing belts, pulleys, motor, etc, at their required service period. Any planned maintenance should result in as little ‘down-time' as possible.

It has already been decided that the transmission will consist of; an AC Electric Motor and ‘V' Belt drive. The actual motor, belts, pulleys, etc, have yet to be chosen and decided. 3 Phase 50Hz electric supply is available.

Posted Date: 3/2/2013 7:06:00 AM | Location : United States







Related Discussions:- Ventilation fan belt assembly, Assignment Help, Ask Question on Ventilation fan belt assembly, Get Answer, Expert's Help, Ventilation fan belt assembly Discussions

Write discussion on Ventilation fan belt assembly
Your posts are moderated
Related Questions
Inspection of Fasteners: The motorcycle carries number of nuts and bolts. They should be properly tightened for the smooth running of motorcycle. All fasteners are checked

If Taylor's tool life constants for a provided operation are specified of n = 0.5 and c = 400, what is the percentage increase in tool life when the cutting speed is reduced by hal


What are the Alluvial sediments Alluvial sediments are characterized by stratification or layering and fine grained soil layers have higher compressibility as compared to coars

Variables used in WPS Depending on their influence on obtaining a desired weldment, the welding variables are then classified and listed. Some of them are listed as "Essential

Q. Show General Properties of Castings? 1. Fe-Cr (10-30%Cr) alloys offer good resistance to oxidation, low strength at elevated temps, restricted to use in oxidizing or reducin

Enthalpy defines as heat content of a chemical system.

what is the relation ship between tolrancr grade and manufacturing process ?

Copper Alloys Some alloys of copper are employed in industry for varying causes. Copper forms alloys along with zinc or the brasses, tin or the bronzes, along with tin and pho

Determine reactions on compound beams: Determine reactions at the support A , B , C , and D for arrangement of compound beams shown in the figure given below.