In the pond, there was no ventilation. As time went by, water in the pond had become polluted due to the deduction of the oxygen in the water. There were aquatic lives in the pond such as various fish. Due to this issue, aerators were installed all over the pond areas. This stemmed in significantly huge expenses on a monthly basis electricity cost that they had to bear with in order to maintain and increase the oxygen level in the pond. To overcome that problem it is need to make aerator system using Solar energy use.

1. DESIGN AND DEVELOPMENT OF SOLAR POWER AERATION SYSTEM
Matoshri College of Engineering And Research Centre
Department Of Mechanical Engineering
Guided By : Presented By:
Prof. Neeraj Dole Rohit Rao
Utkarsh Falak
Gagan Rumne
Tanmay Bagul

2. CONTENTS
 Introduction
 Literature Review
 Problem Statement
 Objectives
 Methodology
 Design calculation
 Design
 Components for Project
 Project photos
 Cost of standard parts / cost of project
 Advantages
 Disadvantage
 Application
 Conclusion
 References

3. INTRODUCTION
 Aeration systems are designed to increase the air-water
interface within a process liquid, allowing for sufficient
oxygen transfer required to support the biological
processes.
 Mechanical aeration consists of motor-driven impellers,
propeller aspirators, or rotors that generally operate at
the liquid surface to provide DO within the aeration tanks.
 The impeller and rotor transfer oxygen by mixing the
liquid surface while the propeller aspirator injects
atmospheric air into the liquid.

4. LITERATURE REVIEW
 Mohammad Tanveer, Subha M Roy, M Vikneswaran, P Renganathan and S
Balasubramanian, done the work on, Surface aeration systems for application
in aquaculture: A review, according to his work, Surface aeration systems viz.,
paddle wheel and spiral aerators are the most commonly used aeration
systems in intensive aquaculture practices.
 L.B. Bhuyar, S.B. Thakre1, N.W. Ingole, done the work on, Design
characteristics of Curved Blade Aerator w.r.t. aeration efficiency and overall
oxygen transfer coefficient and comparison with CFD modeling, according to
his work, The main objective of this work is to design a high efficiency curved-
blade-surface mechanical aerator for oxidation ditch, which is used to treat
municipal and domestic sewage.
 Jayraj P, Subha M. Roy, C. K. Mukherjee and B. C. Mal, done the work on,
Design Characteristics of Submersible Aerator, according to his work, Aeration
experiments were conducted on original and modified submersible aerator to
evaluate its performance and to optimize the aeration efficiency. The angular
position of the propeller (α) and submergence depth of the propeller (d) were
varied to study their effects on standard aeration efficiency (SAE).

5. PROBLEM STATEMENT
In the pond, there was no ventilation. As time went by,
water in the pond had become polluted due to the deduction
of the oxygen in the water. There were aquatic lives in the
pond such as various fish. Due to this issue, aerators were
installed all over the pond areas.
This stemmed in significantly huge expenses on a monthly
basis electricity cost that they had to bear with in order to
maintain and increase the oxygen level in the pond.
To overcome that problem it is need to make aerator
system using Solar energy use.

6. OBJECTIVES
 The main objective of this project is to assess the feasibility and
economic viability of utilizing Solar based standalone power supply
systems to meet the load requirements for aeration system.
 To make nonconventional system which will give continues &
sufficient power in all working conditions for aeration system.
 To make energy efficient aeration system as an low cost alternatives
to conventional one.
 To optimize usage of electricity by substituting its mode of
generation for aeration system.
 To develop a small aeration system scale model for assessing
feasibility of system.

7. METHODOLOGY
The below flow chart shows the sequential operation/steps that will be
performed during the process.

8. DESIGN CALCULATION
1. Motor selection:
Thus selecting a motor of the following specifications
Let us assume the force to be required for Carrying Load on rotor of aerator 1kg
= 9.81N. So that power will transmitted by chain drive having sprocket dia60mm
Torque T = F x R
= 9.81 x 30
= 294.3 N.mm.
T = 0.2943 N.m
Thus selecting a motor of the following specifications.
P = 2 П N T/60
= 2 П X 60 X 0.2943/60
T = 1.849 N-m
We Select:
1.DC motor 2.Power = 1/15hp=50 watt 3.Speed= 60 rpm Motor Torque
P = 2 П N T/60 T = 60 x 50/2 П x 60 T=7.96N-m

9. 2.Design of Chain drive:
Let speed of pinion is 60 rpm. The driving sprocket is mounted on the same shaft so
that,
Speed of driving sprocket N1 = 60 rpm. Speed of sprocket is 100rpm for 08A chain.
Power P = 50 watt = 50 x 10-3 kw.
Let, Dia. Of driving sprocket d1 = 180 mm.
Dia. Of driven sprocket d2 = 75 mm.
d1/d2 = N2/N1 180/75 = N2/60
N2 = 144 rpm.
No. of teeth on driving & driven sprocket is , Z1 = 42 , Z2 = 18
Let, Ks = Service factor = 1
K1 = Multiple strand factor = 1
K2 = Tooth correction factor = 1
Kw = 0.53X1/1X1.05
Kw = 0.504 Kw.
Select chain 08A.
Pitch of chain sprocket P.No.547
P = 12.70 mm.

10. Pitch circle dia P1= pitch/sin180/z1 = 12.70/sin180/42 = 169.94mm
Pitch circle dia P2=pitch/sin180/z2 = 12.70/sin180/18 = 73.136mm
Centre distance between two sprocket a = 375mm
No. of link on chain
Ln = 2(a/p) + (Z1+Z2/2) + (Z1-Z2/2П)2 X (p/a)
= 2(375/12.7) + (42+18/2) + (42-18/2П)2 x (12.7/375)
Ln = 89.54
Ln = 90Links
Correct centre distance a
= Ln – (Z1+Z2/2) = 90 – ( 42+18/2) = 60 mm
a = 377.8mm
3.Shaft design:
To find diameter of shaft by ASME code
For commercial steel shaft, Actual shear stress τact = 55N/mm2 T = П/16 x τact xd3
τact= 16xT/ ПXd3 7.763 = 16x55/ Пxd3
d3=737.089
d=9.033mm select d=10mm

11. 4.Bearing Selection:
As shaft diameter is 10mm & selected a ball bearing having shaft outer dia-10mm
ball bearing to support the shaft of 10mm. No. 6200.
Total radial load on bearings are = 5kg. = 49.05 N.
Radial load on each bearings Fr = 49.05 /2 = 24.525 N.
Equivalent dynamic load Pe = V.Fa.Kr = 1 X 24.525 X 1.5
Pe = 36.787 N
bearing life is, L10 = Lh10x60xn/106
Lh10 from graph 4.6 PSG Design data book for 20000 rpm maximum speed of ball
bearing is 200000 Hours. PSG Design data book P.No. 4.13.
L10 = 200000x60x60/106
L10 = 720 millions of revolutions.
L10 = (C/Pe)(3)
C = (720)(0.33) X 36.787
C = 329.71 N. ≤ 4000 N (Bearing is safe)

12. DESIGN

13. COMPONENTS FOR PROJECT
Sr. No Components Quantity
1 Solar Panel 1
2 Solar charger unit 1
3 Storage battery 1
4 DC Motor 1
5 Ball bearing 2
6 Shaft 1
7 Chain Drive 1
8 Fasteners 20
9 Supporting frame 1
10 DC Pump 1
11 PVC Pipe 8 Feet
12 PVC elbow 4
13 Nylon Net 1

14. PROJECT PHOTOS

16. COST OF STANDRD PARTS
SR NO. DESCRIPTION QTY RATE/UNIT TOTAL COST
1 GEARED MOTOR 1 750 750
2 SPROCKETS 2 150 300
3 CHAIN 1 120 120
4 BALL BEARING 2 80 160
5 12VOLT PUMP 1 450 450
6 12VOLT BATTERY 1 800 800
7 PVC ELBOW 4 150 600
8 PVC PIPE 3Mtr 100 300
9 NUT AND BOLT 10 5 50
10 WIRE 2Mtr 10 20
11 SOLAR PANEL 1 550 550
12 SWITCH 1 40 40
TOTAL 4140/-

17. COST OF PROJECT
Cost of material + Cost of machining + Cost of standard parts
= 1516 + 2480 + 4140
= 8136/-

18. ADVANTAGES
 Overcoming disadvantages of conventional system by using
standalone renewable electrical energy generation for
running aeration system.
 Aeration System maintains is remarkably reduced and
becomes easy.
 Renewable energy sources are utilized so, no waste
production.
 Eliminates the need for harmful chemicals.
 Improves Water Quality and Clarity.

19. DISADVANTAGES
 It can only captured during day time.
 Solar energy production is relatively inefficient.
 Solar panels and battery are bulky.

20. APPLICATIONS
 For aquatic environments ranging in size from small
ornamental ponds to lakes up for filtration.
 Remote areas installation.
 Environmentally beneficial landscaping / aqua scaping.

21. CONCLUSION
From the present study, it can be concluded that the use of
solar powered aerator can be an efficient system for
improving dissolved oxygen level in water thereby increasing
growth, survival and overall production of fish.
The day time operation increases oxygen level of water
breaks thermal stratification and hence producing uniform
dissolved oxygen profile in pond water.

22. REFERENCES
 Mohammad Tanveer, Subha M Roy, M Vikneswaran, P Renganathan and S
Balasubramanian, Surface aeration systems for application in aquaculture: A
review, International Journal of Fisheries and Aquatic Studies 2018; 6(5):
pp.342347.
 L.B. Bhuyar, S.B. Thakre1, N.W. Ingole, Design characteristics of Curved Blade
Aerator w.r.t. aeration efficiency and overall oxygen transfer coefficient and
comparison with CFD modeling, International Journal of Engineering, Science
and Technology, Vol. 1, No. 1, 2009, pp. 1-15.
 Samsul Bahri, Radite P.A. Setiawan, Wawan Hermawan & Muhammad Zairin
Junior, Design and Simulation of Paddle Wheel Aerator with Movable Blades,
International Journal of Engineering Research & Technology (IJERT), Vol. 4
Issue 02, February-2015,pp. 994-999.
 Joseph E. Shigley , Mechanical engineering design, sixth edition, Tata Mcgraw
hill ,2005.
 Khurmi R. S.,Gupta J.K., Atextbook of machine design, first edition, S. Chand
Publication,1979.

23. THANK YOU !