This document discusses the increasing energy consumption in automotive vehicles and the need for improved fuel efficiency by recovering waste heat through thermo-electric generators (TEGs). It highlights the principles of TEGs, their integration into hybrid energy systems, and their advantages, such as eco-friendliness and low maintenance. The future scope includes further research on utilizing waste heat and other external fields for improved battery charging without external power sources.

1. AVANTHI INSTITUTE OF ENGNEERING AND TECHNOLOGY
DEPARTMENT OF MECHANICAL ENGNEERING

2. A consumption of
energy continues to increase at
an exponential rate, especially in
terms of automotive vehicles.
About 40% of the applied fuel
into a vehicle is lost as waste
exhaust to the environment. The
desire for improved fuel
efficiency by recovering the
exhaust waste heat in
automobiles has become an
important subject.
ABSTRACT

3. OVERVIEW
 Introduction
Thermo Electric Generator
Principle
Hybrid Energy System
Applications
Future Scope

4. INTRODUCTION
Currently, all hybrid vehicles,
including micro, mild and full hybrids,
adopt internal combustion engines which
are inefficient in general, regenerative
braking system and other technologies are
employed to recover the power loss.
we can improve the fuel economy
and vehicle efficiency by using an
alternative way which is generating power
from renewable energy sources like solar
energy and heat energy from the exhaust
gases we can generate electricity by using
photo-voltaic cells and thermo-electric
generators.

5. THERMO ELECTRIC GENERATOR
• Thermo Electric Generator is a solid
state device that converts heat flux
(temperature differences) directly into
electrical energy through a phenomenon
called the Seebeck effect (a form
of thermoelectric effect).
• The temperature difference can be
provided by placing the TEG unit between
hot side (exhaust pipe) and cold
side(ambient surroundings or by
external cooling) with help of two heat
exchangers.

6. When the junctions of
two different metals are
maintained at different
temperature the EMF is
produced in the circuit. This is
known as SEEBACK EFFECT.
THERMO ELECTRIC EFFECT

9. MULTI -HYBRID ENERGY SYSTEM
• There by integrating the
electrical energy output from
both the sources and transferred
to charging circuit by which the
battery can be recharged with the
two generation inputs like solar
and peltier.
• Due to this hybrid charging
system we can run the vehicle by
using both the power sources
i.e.., electric motor and IC
engine.

10. ADVANTAGES
• ECO FRIENDLY:
mechanical or chemical process
zero emission
silent (no vibrations).
• Robust and durable nearly no maintenance (>250000 hours for TEG).
• Can generate power from µW to MW
• Space applications
• Compact and less weight

11. FUTURE SCOPE
The present research work is oriented for the generation of thermo EMF by
utilizing the waste heat contents. This work also implies for the utilization of electric
field, magnetic field and stress which can exist already in the operating conditions or can
be applied externally for better results to fulfill the need of charging the battery without
an external power source.