Cooling
i
Free Convection
Cooling Variation in Terms of Position
By
Joseph Saba
Rula Dahdal
Wassim Naddi
Submitted to
Dr. Michel Daaboul
A research paper submitted in partial fulfillment of the requirements of the course
MECH 321 Heat Transfer
Faculty of Engineering
University of Balamand
June 2012
Copyright © 2012, Joseph Saba, Rula Dahdal, Wassim Naddi
All Rights Reserved
ii
ABSTRACT
This research paper aims is to introduce a brief positioning on how we can enhance the process of cooling refrigerant tanks. This process is usually done globally, both domestically and inside shops in the market s. Yet, there is no specific awareness for both marketing specialist –sellers- or to regular public, on the effect of the position on the cooling rate. In this brief study, we investigated three different cases, assuming there is no effect of conduction or radiation heat transfers on the process of cooling .
This paper starts with a brief definition, in addition to a historical review of heat transfer, and how it progressed to be separate science nowadays. I ntroduction to the different kinds of heat transfer phenomena is also introduced to the readers who have no background of what does heat transfer and its types mea n. In depth, explanation of the process of free or natural convection is carried out ; including the variables, dimensionless factors, and conditions involved. Afterwards, this document gives instructions on how to calculate the total heat transfer for a st andard carbonated drink container. Moreover, just following the detailed instructions, any reader would be able to use this data to determine the heat transfer rate for any cylindrical container, by just replacing values of certain variables. At the end of this document, conclusions are drawn based on theoretical data obtained for the different three cases/positions investigated.
iii
TABLE OF CONTENTS
ABSTRACT
ii
TABLE OF CONTENTS
iii
CHAPTER
Free Convection
Cooling Variation in Terms of Position
By
Joseph Saba
Rula Dahdal
Wassim Naddi
Submitted to
Dr. Michel Daaboul
A research paper submitted in partial fulfillment of the requirements of the course
MECH 321 Heat Transfer
Faculty of Engineering
University of Balamand
June 2012
Copyright © 2012, Joseph Saba, Rula Dahdal, Wassim Naddi
All Rights Reserved
ii
ABSTRACT
This research paper aims is to introduce a brief positioning on how we can enhance the process of cooling refrigerant tanks. This process is usually done globally, both domestically and inside shops in the market s. Yet, there is no specific awareness for both marketing specialist –sellers- or to regular public, on the effect of the position on the cooling rate. In this brief study, we investigated three different cases, assuming there is no effect of conduction or radiation heat transfers on the process of cooling .
This paper starts with a brief definition, in addition to a historical review of heat transfer, and how it progressed to be separate science nowadays. I ntroduction to the different kinds of heat transfer phenomena is also introduced to the readers who have no background of what does heat transfer and its types mea n. In depth, explanation of the process of free or natural convection is carried out ; including the variables, dimensionless factors, and conditions involved. Afterwards, this document gives instructions on how to calculate the total heat transfer for a st andard carbonated drink container. Moreover, just following the detailed instructions, any reader would be able to use this data to determine the heat transfer rate for any cylindrical container, by just replacing values of certain variables. At the end of this document, conclusions are drawn based on theoretical data obtained for the different three cases/positions investigated.
iii
TABLE OF CONTENTS
ABSTRACT
ii
TABLE OF CONTENTS
iii
CHAPTER