The development of an experimental simulator for optimizing the thermal design of a generic table model television receiver

Author

Michael S. Yuki

Date of Award

6-1988

Degree Type

Thesis

Degree Name

Master of Science

Major

Mechanical Engineering

Major Professor

J. Roger Parsons, Robert J. Krane

Abstract

Although much work has been directed toward the packaging of electronics with large numbers of integrated circuits, little work has been done to optimize the cooling of electronic components in consumer electronics. In the process of designing a television receiver, engineers have depended upon their experience and product testing to package the electronic components. This research project begins the process of placing the thermal design of a television receiver on a more fundamental basis.

Using a baseline 20 inch diagonal table model television receiver made by North American Philips Consumer Electronics Corporation, experiments were performed to determine the temperature distribution and flow field. Also, experiments were performed to examine how different vent patterns affected the heat removal. Various vents were blocked to see how temperatures within the receiver changed in comparison to the baseline all vents open case. Also, flow visualization tests were performed to examine the cases of all vents open and all vents closed.

The results of the tests show that the worst case of blocking all the vents only increased temperatures on the order of 10°C. The best case is blocking the lower extension vents which reduced the receiver temperatures by about 2°C. Based on the temperature and flow visualization tests, six rules for locating vents were also developed.

To provide engineers with a method of predicting the thermal performance of a particular packaging design, a simulator of a television receiver was constructed and its performance was compared to that of a production television receiver. This simulator was designed so that changes in cabinet shape, vent patterns, and circuit board location could be modeled quickly and inexpensively. Flow visualization and temperature measurement tests were performed and verify that the simulator accurately modeled the temperatures and flow patterns of a television receiver.

Recommended Citation

Yuki, Michael S., "The development of an experimental simulator for optimizing the thermal design of a generic table model television receiver. " Master's Thesis, University of Tennessee, 1988.
https://trace.tennessee.edu/utk_gradthes/13390