Orifice meter, Fluid Mechanics | Topper Handwritten Notes & Videos for GATE ME - Mechanical Engineering PDF Download

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FAQs on Orifice meter, Fluid Mechanics - Topper Handwritten Notes & Videos for GATE ME - Mechanical Engineering

1. What is an orifice meter in fluid mechanics?
An orifice meter in fluid mechanics is a device used to measure the flow rate of a fluid through a pipe. It consists of a small circular opening called an orifice plate, which is placed in the pipe. The pressure difference across the orifice plate is measured to determine the flow rate of the fluid.
2. How does an orifice meter work?
An orifice meter works based on the principle of Bernoulli's equation. As the fluid flows through the orifice plate, its velocity increases and the pressure decreases. By measuring the pressure difference between the upstream and downstream of the orifice plate, the flow rate of the fluid can be calculated using appropriate equations or calibration charts.
3. What are the advantages of using an orifice meter?
There are several advantages of using an orifice meter in fluid mechanics. Firstly, it is a simple and cost-effective device compared to other flow measurement techniques. Secondly, it can handle a wide range of fluid flow rates and is suitable for both liquids and gases. Additionally, orifice meters are robust and require minimal maintenance.
4. What are the limitations of using an orifice meter?
While orifice meters are widely used, they do have some limitations. One limitation is that they can introduce a significant pressure drop in the fluid flow, which may affect the overall system performance. Another limitation is that the accuracy of the measurement can be affected by factors such as fluid properties, temperature, and presence of impurities. Additionally, orifice meters require accurate calibration for precise flow rate measurements.
5. How can the accuracy of an orifice meter be improved?
To improve the accuracy of an orifice meter, several measures can be taken. Firstly, using a properly designed and manufactured orifice plate can enhance accuracy. Additionally, accurate calibration of the orifice meter using a known flow rate can help improve accuracy. Furthermore, considering the effect of fluid properties, temperature, and impurities during calibration and measurement can also increase the accuracy of the orifice meter.
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