2. īļ Introduction
īļ What is Refrigeration...?
īļ Method of Refrigeration
īļ Peltier Effect
īļ Peltier chip design
īļ Operating principal of PC
īļ Component
īļ Renewable Energy
īļ Used Renewable Energy
īļ Solar Panel
īļ Wind Mill
īļ Types of Blade
īļ Hand wheel
contents
3. īļ Specification of Refrigerator
īļ Block Diagram
īļ Working
īļ Power calculation
īļ Advantages
īļ Application
4. introduction
īļ In the present scenario power becomes major need for
human life.
īļ So we are used renewable energy resource in refrigeration
system
īļThe refrigeration is Achieved by the Peltier effect
īļThe peltier effect is just opposite to the Seebeck effect.
īļIn seebeck effect, in which two dissimilar electrical conductors
or semi conductor produce a voltage difference between two
substances.
5. īļ It is the removal of heat from a space at a temperature lower
than the surrounding temperature .
īļIn Other word refrigeration is the science of providing &
maintaining temperature below that of surrounding atmosphere.
īļRefrigeration is a process in which work is done to move heat
from one location to another.
WHAT IS REFRIGERATION ...?
6. Method of Refrigeration
īļ Cyclic Refrigeration
1. VCRS
2. VARS
īļ Non âCyclic
1. Refrigeration by Peltier Chip with using
Renewable or non-renewable energy source.
7. īļ This effect was first discovered in 1834 by the french
physicist Jean-Charles-Athanase Peltier
īļAn effect, whereby heat is given out or absorbed when an
electric current passes across a junction between two
material.
īļIn other word, The cooling of one junction and the
heating of the other when electric current is maintained.
īļThe Whole circuit are called Peltier chip.
Peltier effect
8. īļThe chip, which is produce a Peltier effect.
īļIt is made by two unique semi-conductors, one n-type & one p-
type.
īļThey have different density of electrons
īļ The semi-conductors are placed thermally in parallel to each
other & electrically in series and then joined with a thermally
conducting plate on each side.
Peltier chip Design
9.
10. īļ Operate by the Peltier effect.
īļWhen a voltage is applied to the free ends of the two
semi-conductors.
īļ there is the flow of DC current across the junction of
the semi-conductors causing a temperature
difference.
īļ it brings heat from one
side & other is cooler.
Operating principal of pc
11.
12. ī Peltier chip
ī Fans
ī Heat sink
ī RAC box
ī Battery
ī Solar Panel
ī Wind mill
ī Hand wheel
ī Control circuits
ī Dynamo.
component
13. Renewable energy
īļ The energy which is collected from renewable resources,
which are naturally resources. such as sunlight, wind, rain ,
tides, waves, and geothermal heat.
īļIt is often provides energy in four areas;
1. Electricity generation
2. Air & water heating /cooling
3. Transportation
4. Rural (off-grid)
15. īļ Photovoltaic solar panels absorb sunlight as a source of energy to
generate electricity
īļ Photovoltaic modules constitute the photovoltaic array of a photovoltaic
system that generates and supplies solar electricity.
īļ The majority of modules use wafer-based crystalline silicon cells or thin-
film cells.
Solar panel
16. Wind mill
īļ A windmill is a structure that converts the energy of
windmill into rotational energy by means of vanes
called sails or blades.
īļ There are windmills that convert the rotational energy
directly into heat.
18. īļ Any Wheel worked by hand, that move in a hand rotating
direction produce a mechanical energy
īļ The mechanical energy which again convert into the
electrical energy by the help of dynamic generator.
Hand wheel
21. īļ The battery provide charge to the peltier chip which is
fitted in the RAC box.
īļThe Peltier chip produce refrigeration effect into the
RAC box
īļWe are using heat sink to remove the heat from the
one surface of peltier chip
īļThe Battery charged by the help of solar panel,
windmill, & hand wheel.
working
22. ī Electric power is used to turn off the refrigerator and details are
mention below
a) Source :- 12 volts DC battery
b) Fans :- 7 amps
ī Minimum power required is 12 volt and a maximum of 56 volts , it is
supply by battery.
ī Fan speed:-
a) Minimum-1000rpm
b) Moderate-2000rpm
c) maximum-3000rpm
power Calculation
23. advantages
īļ Low cost Refrigeration system.
īļ It is Eco-friendly.
īļ No need of any refrigerant.
īļ Small size and weight, portable
īļ Use for both heating & Cooling purpose.
īļ High reliability.
īļ No vibration, no noise.
īļ Can be used in travelling
īļGive fast temperature response
24. application
īļ It is used in many defence technologies as it can
withstand extreme condition.
īļ it can be used in AC purpose.
īļ In cooling or heating purpose.
īļ For preservation of insulin and other drugs.
īļ Preservation of foods stuffs
īļ For cold water.
īļ For beverages.