Post on 25-May-2015
description
Welcome to
Our Presentation
1
University of Asia PacificDepartment of Electrical and Electronic Engineering
Our Project/Thesison
Water Purification by Solar Energy
2
Presented by
Md.Rasheduzzaman Rasel 09108089
Shariful Islam 09108100
Md.Ekhlesur Rahman 09108103
Abul Hasan Emu 09108127
3
Supervised by
Naim I. Alamgir
Department of EEE
University of Asia Pacific
4
Introduction
The aim of our project is to purify water by using solar energy in rural areas of Bangladesh. And to purify the water we have used two methods, they are UV and RO process. We are using solar energy because in rural areas the amount of electricity is not sufficient. Sun ray is available in our country and by using this sun ray, we will produce electricity.
5
Necessity of water purification
Pure drinking water is essential for human life. According to WHO, 97% population of Bangladesh have the access of water. Water born diseases, such as typhoid, cholera, diarrhea. 2.5 to 15 million children and old people are affected by diarrhea.
6
Block Diagram of our project
7
Solar Panel
ChargeController
Battery Inverter
UVlamp
RODirtyTank
Pure WaterTank
8
Miseries period
Process of water purification
We used two types of process in our project.Reverse Osmosis (RO).Ultra Violet (UV).
9
Reverse Osmosis(RO)
What is Reverse Osmosis ?
Reverse Osmosis is a technology that is used to remove a large majority of contaminants from water by pushing the water under pressure through a semi-permeable membrane.
10
What types of elements are removed by RO
More than 99% of dissolved salts(ions). Dust Particles . Colloids . Organics. Bacteria. Pyrogens. And many more.
11
12
Ultra Violet (UV)
Ultraviolet, light is an invisible form of electromagnetic radiation that has a shorter wavelength than the light humans can see. It carries more energy than visible light and can sometimes break bonds between atoms and molecules, altering the chemistry of materials exposed to it. UV light can also cause some substances to emit visible light, a phenomenon known as fluorescence.
Electrical characteristic of UV lamp
13
For 110(v) For 200(v)
V=115 v V=200 v
I=42.6 mA I=48.53 mA P=3.1 w P=5.7 w
Power factor=0.63 Power factor=0.57
P=3.83 VAR P=7.74. VAR
P=4.87 VA P=9.87 VA
UV germicidal protects
BacteriaYeastMold SporesAlgaeE. Coli
14
Why do we use solar panels?
Reduce the use of fossile fuel.
Easy Installation process
Easy to carry. Reduce environment
pollution.
15
Charge controller
A charge controller, charge regulator or battery regulator limits the rate at which electric current is added to or drawn from electric batteries.
16
Why do we use charge controller
Since the brighter the sunlight, the more voltage the solar cells produce, the excessive voltage could damage the batteries.
There are two types of charge controllers.
1. Pulse width modulation(PWM)
2.Maximum power point tracking(MPPT)
17
What is Battery? A battery can change
chemical energy to electricity by putting certain chemicals in contact with each other in a specific way.
18
Classification of battery
19
What is Inverter?
A power inverter is a device that converts DC power (also known as direct current), to standard AC power (alternating current).
20
Type of inverter
Basically there are three types of inverters
1) Square wave Inverters
2) Quasi Square wave or Modified Square wave Inverters
3) True/Pure Sine wave Inverters
21
Equipments of the inverter
Since we will purify water using solar energy so we have to produce electricity from sun ray through solar panel. But to collect the electricity we need a inverter .So we have made a 10W square wave inverter . To make inverter we had to collect some equipments likes IC ,Transistor ,Resister , Capacitor, wire PCB Board ,UV lamp, Transformer etc.
22
IC CD 4047
23
Pin configuration of CD-4047
24
IC LM358
25
Pin Configuration of LM 358
26
Transistor TIP 31
27
Circuit Diagram of an Inverter
28
Inverter
29
Output of waveform an inverter
30
Value of inverter(input & output)
Input voltage : 12 VInput current: 3.22 mA
31
Output voltage: 173 VOutput current: 46.54 mA
32
Questions & Answer Session
33
34