Muhammed Fuad Rashid Petroleum Engineering Department at Koya University Fluid Mechanics Laboratory 2020

1. Erbil Polytechnic University
Koya Technical Institute
Petroleum Technology
Operation and Control
Report
Fluid Mechanic Lab.
Test no: (1)
Test name:
Aerometer or Hydrometer
Supervised by:
Karwan A. Ali
Date of Test: 26/10/2017
Date of Submit:5/11/2017
Prepared by: Muhammed Shwan Ali
Signature:

2. Table of content:
Title Page
Aim of the Experiment 3
Theory of the experiment and its
Performing
3
Aerometer applications 4
Table of reading 4
Discussion 5
Calculation 6

3. Aim of the experiment:
Determining the liquid density
Theory of the experiment and its
Performing:
To measure the density ρ of liquids an aerometer is
used. It comprises an enclosed glass bulb 1, which
is filled with lead shot 2 at the bottom and, above that,
with air.
The handling is quite simple: The aerometer is placed
in the liquid, and because of the lead filling it always
rights itself vertically. The aerometer sinks more or less
deeply into the liquid, depending on the thickness.
Since the aerometer is suspended, its lifting force must
be exactly the same as its force due to weight, i.e. its
apparent weight is equal to zero:
FG, liquid = FG - FA = 0
The liquid density can be read directly from the scale 3.
Two differently calibrated aerometers are supplied:
• Measuring range ρ = 0.8-1.0g/cm3
, for liquids lighter than water,
e.g. alcohol or petroleum.
• Measuring range ρ = 1.0-1.2g/cm3
, for liquids heavier than water,
e.g. glycerin or a salt solution.

4. Aerometer applications
Because solutes change the density of a solution, appropriately calibrated
aerometers can be used, among other applications, to ascertain the alcohol
content of drinks, the fat content of milk, the concentration of battery acid,
and the antifreeze content in motor vehicle coolant.
Table of reading:
No. Liquid
Relative Density
(R.D)
(g/cm3
)
1 Oil 0.785
2 Water 1.000
3 Salt + water 1.075
Table of Calculation:
No. Liquid
Relative Density
(𝜌)
(kg/m3
)
1 Oil
2 Water
3 Salt + water

5. Discussion:
1-Read the liquid density from the aerometers shown below:
density (A)=0.82g/ml
density (B)=1.05g/ml
density (C)=1.15g/ml
density (D)=0.99g/ml
222
2-Discuss the location of lead in the bottom of aerometer:
A/ to make aerometer vertical
3-How can we find density of mercury? Can we find it by
hydrometer? How much the density of mercury?
A/
1.0
0.8
0.9
0.2
0.4
0.6
0.8
0.2
0.6
0.4
0.8
gr/ml
1.2
1.0
1.1
0.2
0.4
0.6
0.2
0.6
0.4
0.8
gr/ml
0.8
1.2
1.0
1.1
0.2
0.4
0.6
0.2
0.6
0.4
0.8
gr/ml
0.8
1.0
0.8
0.9
0.2
0.4
0.6
0.8
0.2
0.6
0.4
0.8
gr/ml
A B C D