Brae 236-handout-Lab2 Flow Rate Measurement

Brae 236-handout-Lab2 Flow Rate Measurement - standard. 5....

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BRAE236 L AB 2 W ATER F LOW R ATE M EASUREMENT OBJECTIVES Introduce student to basic methods used to measure the rate of flow in typical agricultural water delivery system. Discuss and demonstrate the engineering principles associated with each device. PROCEDURE 1. Divide into groups of about 4 people. 2. Place the names of your group members on your report. 3. Evaluate the dimensions of each device before the water is turned on. 4. Collect the necessary data to compute the flow rate at each device using calculations. 5. Complete the questions and neatly present your results in a written lab summary. Attach your raw notes to the lab report to be turned in. WRITE-UP 1. Record the data required to compute flow rate estimates for each water measurement device. 2. Do any computations necessary on a separate page. 3. Compute the flow rate through each water measurement device using the table and the formula. 4. Compute the variation in flow rate estimates of each device using the Replogle Flume as the
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Unformatted text preview: standard. 5. Summarize the flow rates computed for the various devices in a table using the format show below: No. Device Name Device Flow Rate (CFS) Replogle Flume Q (CFS) Difference from Flume (Device – Flume) % Error (Difference /Flume)x100 Discussion / comments 6. Questions: a. The velocity of water in a pipe with a 4-inch inside diameter is 2.4 feet per second. What is the flow rate in gallons per minute and cubic feet per second? b. Explain why it is important to measure the flow rate at precise locations in both pipe and channel cross-sections. c. List some of the potential sources of error. Be specific. TO TURN IN (IN THIS ORDER): 1. Lab Handout 2. Summary Table 3. Calculations for each method 4. Summary of notable findings 5. Answers to questions 6. Field/class notes with sketches and dimensions...
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This note was uploaded on 11/12/2011 for the course BRAE 236 taught by Professor Styles during the Spring '08 term at Cal Poly.

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