Report New Saif Shabbri.docx

TO STUDY AND CONSTRUCT THE MODEL OF MINI FREEZER A Project Report Submitted In Partial Fulfillment of the Requirements For the Degree of

BACHELOR OF TECHNOLOGY In MECHANICAL ENGINEERING By RAIYAN ABDUR REHMAN (Roll No:1501016153) YASIR MAHMOOD (Roll No:1501016183) SAIF SHABBIR (Roll No:1501016160) Under the Supervision of

Dr SHAHNAWAZ ALAM

DEPARTMENT OF MECHANICAL ENGINEERING INTEGRAL UNIVERSITY, LUCKNOW-226026 2018-19

CERTIFICATE

Certified that Raiyan Abdur Rehman (Roll No.1501016153),Yasir Mahmood (Roll No.1501016183),Saif Shabbir (Roll No. 1501016160) have carried out the Project work presented in this project report entitled “TO STUDY AND CONSTRUCT THE MODEL OF MINI FREEZER” for the award of Bachelor of Technology from Integral University, Lucknow under my supervision. The project report embodies results of original work, and studies are carried out by the students themselves and the contents of the project report do not form the basis for the award of any other degree to the candidates or to anybody else from this or any other University/Institution.

Name & Signature of Guide Date:

ABSTRACT Refrigerator and air conditioners are the most energy consuming home appliances and for this reason many researchers had performed work to enhance performance of the refrigeration systems. Most of the research work done so far deals with an objective of low energy consumption and refrigeration effect enhancement. Thermoelectric refrigeration is one of the techniques used for producing refrigeration effect. Thermoelectric devices are developed based on Peltier and Seeback effect which has experienced a major advances and developments in recent years. The coefficient of performance of the thermoelectric refrigeration is less when it is used alone, hence thermoelectric refrigeration is often used with other methods of refrigeration. Some of the research and development work carried out by different researchers on TER system has been thoroughly reviewed in this project. The study envelopes the various applications of TER system and development of devices. This project summarizes the advancement in thermoelectric refrigeration, thermoelectric materials, design methodologies, application in domestic appliances.

ACKNOWLEDGEMENT

This professional project report is dedicated to those who gave me an opportunity and encouragement to inculcate fineness in project. We would like to express our sincere gratitude towards all the people who have contributed their precious time and effort to help us, without them it would have been a great difficulty for us to understand and complete the project. We would especially like to thank Dr. Shahnawaz Alam , Department of Mechanical Engineering, our Project Guide for his guidance, support, motivation, and encouragement throughout the period this work was carried out. His readiness for consultation at all times, his educative comments, his concern, and assistance even with practical things have been invaluable. I am grateful to Dr. P.K. Bharti, Professor and Head, Department of Mechanical Engineering for providing necessary facilities in the department.

Raiyan Abdur Rehman (Roll No: 1501016153) Yasir Mahmood (Roll No: 1501016183) Saif Shabbir (Roll No: 1501016160)

CONTENTS Certificate Abstract Acknowledgement CHAPTER NO. 1. 2. 3. 4.

6.

TOPICS

PAGE

Introduction

1-4

Thermoelectric Refrigeration: An Introduction Basic mechanism of thermoelectrics Materials used Comparison of the features of all three systems Working of the project