Subject Engineering Mechanical Engineering


Design project for a mechanism that can measure the speed of air inside HVAC ducts using mechanical means.

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There are many different kinds of devices for measuring velocity of flow of air inside ducts. This paper suggests an entirely mechanical means of accomplishing the measurement. The suggested mechanism involves using the force generated by the rate of change of momentum of the flowing air to deflect a spring damper arrangement. It is by measuring the deflection the velocity is obtained since there is a direct relationship between the two parameters.
Keywords: HVAC, velocity, air, duct, mechanical, measuring, device

There are many devices for measuring the velocity of air inside ducts. Most of these involve electronic components, making them costly. This paper intends to propose a method of measuring it using a means which is completely mechanical and simple....

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