Solar Powered

1. SOLAR POWERED COMPRESSOR LESS
REFRIDGERATOR SYSTEM
Presented
By:
Avdhesh Sharma
Arun Kumar Gangwar
Aditya Singh
Akansh Shail
Atul Sharma

2. POINTS TO BE DISCUSSED
 Project Introduction
 Paltier
 Paltier Effect
 Seedbeck Effect
 Cooling System
 Power Supply
 Solar Panel
 Basic Electronic Components

3. PROJECT INTRODUCTION
 The portable refrigeration unit design team
collaborated to create an alternative energy
powered absorption refrigerator. The design
uses energy to power the unit, allowing it to
be completely off of the electric grid.
 The basic principle of an absorption
refrigeration system is that it uses a source
of heat to provide the energy needed to drive
the cooling process

4. BLOCK DIAGRAM OF SYSTEM

5. PALTIER
 A Peltier cooler,
heater,
or thermoelectricheat
pump is a solid-state
active heat pump
which transfers heat
from one side of the
device to the other,
with consumption of
electrical energy,
depending on the
direction of the current.

6. PALTIER EFFECT
 The thermoelectric refrigerator works on the
PELTIER effect that The Peltier–Seebeck
effect, or thermoelectric effect, is the direct
conversion of thermal differentials to electric
voltage and vice versa. Related effects are
the Thomson effect and Joule heating.
 The Peltier–Seebeck and Thomson effects
are reversible (in fact, the Peltier and
Seebeck effects are reversals of one
another); Joule heating cannot be reversible
under the laws of thermodynamics.

7. PALTIER EFFECT

8. SEEDBECK EFFECT
 The Seebeck effect is the conversion of
temperature differences directly into
electricity.
 The effect is that a voltage, the
thermoelectric EMF, is created in the
presence of a temperature difference
between two different metals or
semiconductors. This causes a continuous
current to flow in the conductors if they form
a complete loop. The voltage created is of
the order of several microvolts per degree

9. SEEDBECK EFFECTS

10. COOLING SYSTEM
 Thermoelectric coolers are solid state heat
pumps used in applications where temperature
stabilization, temperature cycling, or cooling
below ambient are required.
 There are many products using thermoelectric
coolers, including CCD cameras (charge coupled
device), laser diodes, microprocessors, blood
analyzers and portable picnic coolers.
 The typical thermoelectric module is
manufactured using two thin ceramic wafers with
a series of P and N doped bismuth-telluride
semiconductor material sandwiched between
them

11. POWER SUPPLY

13. SOLAR ENERGY AND SOLAR PANEL

14. WHAT IS SOLAR ENERGY?
Solar Energy originates with
the thermonuclear fusion
reactions occurring in the
sun.
The spectrum of solar light
at the Earth's surface is
mostly spread across
the visible and near
infrared ranges with a
small part in the ultraviolet
region.

15. SOLAR PANEL
 Solar Panel is an indispensable component of this system.
 Solar Panel is responsible to collect solar radiations and
transform it into electrical energy.
 Solar Panel is an array of several solar cells (Photovoltaic
cells).
 The arrays can be formed by connecting them in
 parallel or series connection depending upon
 the energy required.

16. SOLAR PANEL

17. BASIC ELECTRONIC COMPONENTS
 LED
 RESISTORS

18. LEDS
Light Emitting Diodes
Diode Symbol + Arrows for light
Points to ground

19. RESISTOR
Resistors provide a specific
amount of resistance to a
path in a circuit or wire.
Ohm's law is used to
calculate the
properties related to
resistance.
Ohm's Law: I = V/R
I = Current measured in
Amps
V = Voltage measured in
Volts
R = Resistance measured in
Ohms
Resistors are color coded.