Experiment title

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BACHELOR OF CHEMICAL ENGINEERING (HONS)
LAB REPORT
EKB 2081 CHEMICAL ENGINEERING LAB I
NAME
Nisha Fareena Binti Sarfaraz Khan
ID
1102171011
EXPERIMENT TITLE

Venturi Meter
DATE OF EXPERIMENT
1/Nov/2018
DATE OF SUBMISSION
15/Nov/2018

NAME OF GROUP MEMBERS
ID
NISHA FAREENA
1102171011
ABISHEK SEKHAR

1103173001
MATHANESHAN RAJAGOPAL
1103173003


SIGNATURES



CHEMICAL ENGINEERING LAB I
INCHARGE
(DR.YEE KIAN FEI/ IR.THAM MS. NURUL
SAKINAH)
MARKING
DETAILS
TOTAL
MARKS
AWARDED
Attitude
5

Participation
5

Open ended
10

Lab Report
40

Total
60

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Table of Content

1. Abstract. Introduction 2.1 Principles of venturimeter
2.2 Experimental Theory
2.3 Applications
2.4 Advantages/Disadvantages
3. Results and Discussion 3.1 Calculation Results
3.2 Discussion
4. Conclusion and recommendations ……………………………….…...19 5. Reference ……………………………………………………………..…20 6. Appendix …………………………………………………………..……. 21

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1. Abstract :

The main objective of this experiment is to obtain the coefficient of discharge Cd, from experimental data by the use of Venturimeter. By the ratio of the actual discharge Qa to its theoretical discharge Qt. The main function of venturimeter is to measure the flow rate of the fluid flowing in a pipe by means of a manometer attached to it. Basically it works on the principal of Bernoulli’s Theorem. The pressure difference in the inlet and the throat area where the venture meter is attached helps to measure the flow rate of the liquid by means of a manometric head difference. The theoretical discharge Qt is measured by means of a formula and the actual discharge Qa values are obtained by collecting L of water in the measuring tank and note the time in seconds. The flow rates in Lpm are measured by the rotameter. To avoid any eddies formation we start from 32Lpm down to 12Lpm. The average value of the coefficient of discharge Cd obtained is 0.97 after repeating the same experiment over six times. The slope of the graph constructed by taking Qa vs Qt gives us the average value of Cd. Due to losses inside the pipe of the venturimeter and manometer limbs the Cd value is always less than 1. The overall experiment was performed according to the given instructions and guidelines and the final result obtained established an important relationship between the flow of liquid through a venturimeter.

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