This paper analyzes the heat transfer process involved in the operation of an automotive radiator. The paper is written as part of an undergraduate research activity. The analysis of a radiator encompasses nearly all of the fundamentals discussed in a heat transfer class, including the internal and external fluid flow through a heat exchanger and the design and analysis of heat sinks and exchangers. The theoretical heat exchanger investigation begins with analyzing the internal fluid flow through the radiator’s noncircular tubes, yielding the convective heat transfer coefficient for water. The external fluid flowing across the radiator tubes and fins is then analyzed to find the convective heat transfer coefficient for the air. The heat sink design of the radiator must then be analyzed using the Effectiveness-NTU method to find the theoretical effectiveness, overall heat transfer rate of the radiator, and outlet temperatures of both air and water. Experimental analysis was conducted on the radiator to compare and confirm the analytical results.
This undergraduate research topic is specifically designed to integrate the numerous areas from the subject of heat transfer. Through the many challenges and successes met during this project, the goals of this undergraduate research topic have been accomplished and the students’ understanding of the numerous concepts in heat transfer evolved into a single, unified, and cohesive entity.
This paper analyzes the heat transfer process involved in the operation of an automotive radiator. The paper is written as part of an undergraduate research activity. The analysis of a radiator encompasses nearly all of the fundamentals discussed in a heat transfer class, including the internal and external fluid flow through a heat exchanger and the design and analysis of heat sinks and exchangers. The theoretical heat exchanger investigation begins with analyzing the internal fluid flow through the radiator’s noncircular tubes, yielding the convective heat transfer coefficient for water. The external fluid flowing across the radiator tubes and fins is then analyzed to find the convective heat transfer coefficient for the air. The heat sink design of the radiator must then be analyzed using the Effectiveness-NTU method to find the theoretical effectiveness, overall heat transfer rate of the radiator, and outlet temperatures of both air and water. Experimental analysis was conducted on the radiator to compare and confirm the analytical results.This undergraduate research topic is specifically designed to integrate the numerous areas from the subject of heat transfer. Through the many challenges and successes met during this project, the goals of this undergraduate research topic have been accomplished and the students’ understanding of the numerous concepts in heat transfer evolved into a single, unified, and cohesive entity.
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