Solar air cooler
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Transcript of Solar air cooler
BY
SURESH.R (16705A0426)
B TECH II Year I Sem
ELECTRONICS & COMMUNICATION ENGINEERING
ANNAMACHARYA INSTITUTE OF TECHNOLOGY AND SCIENCES(AN AUTONOMOUS INSTITUTION)
(Approved by AICTE,NEW DELHI & Affiliated to J.N.T.U Anantapuramu)New Boyanapalli, RAJAMPET-516 126 (A.P)
A Technical seminor
OnSOLAR & RECHARGEABLE AIR COOLER
• INTRODUCTION
• BLOCK DIAGRAM
• SOLAR PANEL
• CHARGER CIRCUIT
• CIRCUIT DIAGRAM
• MOTOR & PUMP
• BATTERY
• ADVANTAGES & DISADVANTAGES
• APPLICATIONS
• CONCLUSION
CONTENTS
INTRODUCTION
This paper reveals the comfort conditions achieved by the device for the human body. In summer (hot) and humid conditions we feel uncomfortable because of hot weather and heavy humidity. So it is necessary to maintain thermal comfort conditions. Thermal comfort is determined by the room’s temperature, humidity and air speed. Radiant heat (hot surfaces) or radiant heat loss (cold surfaces) are also important factors for thermal comfort. Relative humidity (RH) is a measure of the moisture in the air, compared to the potential saturation level. Warmer air can hold more moisture. When you approach 100% humidity, the air moisture condenses this is called the dew point. The temperature in a building is based on the outside temperature and sun loading plus whatever heating or cooling is added by the HVAC or other heating and cooling sources. Room occupants also add heat to the room since the normal body temperature is much higher than the room temperature. Need of such a source which is abundantly available in nature, which does not impose any bad effects on earth. There is only one thing which can come up with these all problems is solar energy.
BLOCK DIAGRAM
SOLAR (or)
CHARGER
INDICATOR
CHARGING SWITCH SETTINGS
SPEED CONTROL SWITCH
LOADBATTERY
SOLAR PANEL
Specifications:
System voltage - 12v to 25vSystem Current - 5.5ARegulation Voltage - 14.5Accuracy - 60mvOperating Temp - 10oc to 85oc
Electrical Characteristics:
Open circuit voltage - 21.6vShort circuit current - 1.94AMaximum power - 20wp
CHARGER CIRCUIT
U1
12
X1
FUSE
D1
1N4007GPD2
1N4007GP
C1220mF
R11.2kΩ
D3
1N4007GP
XCP1
XCP2
V1230 Vrms 50 Hz 0° LED1
1
4
5
82
3
6
9
0
Every electrical and electronic device that we use in our day-to-day life will require a power supply. In general, we use an AC supply of 230V 50Hz, but this power has to be changed into the required form with required values or voltage range for providing power supply to different types of devices. There are various types of power electronic converters such as step-down converter, step-up converter, voltage stabilizer, AC to DC converter, DC to DC converter, DC to AC converter, and so on.
MAIN CIRCUIT DIAGRAM
D1
1N4007GP
C110nF
L16mH
L24mH
L34mH
L46mH
Q1
TIS99
R1
560Ω
Q2
TIS99
C21000µF
R2560Ω
D21N4007GP
D31N4007GP
D4MBR20100
D5MBR20100
U2REF3012_SOT23_3
VREF
GND
3
VIN1 VOUT 2
C3100µF C4
100µFC5100µF
XCP3
XCP4
U11 A
XCP1 XCP2
12v dc input
12v o/p
FAN MOTOR
Specifications:
Operating voltage - 12vLoad current - 700mARPM - 1800 rpmWeight - 185GrmsWattage - 8.5wIP - 50Life span - 28900 Hours
WATER PUMP
Specifications:
Input voltage - 8 to 15vInput current - 350 to 500mAWattage - 150 gramsIP - 68Life span - 31000 HoursWater flow - up to 3fts
BATTERY
Battery - 12v 7.5AhBattery type - Lithium
ASSEMBLING THE PARTS OF AIR COOLER
ADVANTAGES & DSADVANTAGES
Low cost High reliable Low maintenance Simple in design Easy to install Compare ordinary coolers it’s 65% Better
ADVANTAGES:
DSADVANTAGES: Battery back up only 3-4 Hours Solar power s not available at night time Solar panel is sensitivity
APPLICATIONS
It used in schools and offices. It can be used n the rural areas where power cut is
problems.
CONCLUSION
Comparing the cost of this product with the existing products in the market is solar product appeals better and affordable by common people. This solar product perfectly suits for villages, schools and offices and thus an alternate to the power cut problems. It comprises of many attractive.
The output of the project is Comfort thermal conditions achieved in the living room. That is room temperature up to 25C and relative humidity of 60%.