SOLAR POWERED COMPRESSOR LESS REFRIDGERATOR SYSTEM

Presented By:

Avdhesh SharmaArun Kumar GangwarAditya SinghAkansh ShailAtul Sharma

POINTS TO BE DISCUSSED

Project Introduction Paltier Paltier Effect Seedbeck Effect Cooling System Power Supply Solar Panel Basic Electronic Components

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

BLOCK DIAGRAM OF SYSTEM

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.

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.

PALTIER EFFECT

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 difference.

SEEDBECK EFFECTS

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

POWER SUPPLY

SOLAR ENERGY AND SOLAR PANEL

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.

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.

SOLAR PANEL

BASIC ELECTRONIC COMPONENTS

LED RESISTORS

LEDSLight Emitting DiodesDiode Symbol + Arrows for lightPoints to ground

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/RI = Current measured in AmpsV = Voltage measured in VoltsR = Resistance measured in Ohms

Resistors are color coded.