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Ire Transactions on Product Engineering and Production 

About: Ire Transactions on Product Engineering and Production is an academic journal. The journal publishes majorly in the area(s): Electronic packaging & Electronics cooling. Over the lifetime, 19 publication(s) have been published receiving 22 citation(s).
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Journal ArticleDOI
Abstract: Summary Recent developments in the construction of thermoelectric coolers have resulted in improved coolers suitable for use in electronic equipment. The continual effort to improve the techniques of cooling electronic equipment led to the investigation of thermoelectric spot cooling of temperature-limiting component parts located within local areas of an electronic equipment. The investigation consisted of the evaluation and application of nine spot coolers constructed to specifications determined by an analysis. Thermal evaluation of the nine spot coolers showed that each spot cooler either met or exceeded the design requirement of pumping 5 w over a 30°C temperature difference. The coefficient of performance exceeded 0.5 for each of the spot coolers operated under the design condition. In addition to the satisfactory thermal performance, a spot cooler passed the mechanical shock and vibration requirements for satellite equipments used in Project Mercury. The information on spot cooler thermal performance was employed in an analytical application of spot cooling to a free-convection and radiation-cooled equipment and a forced-convection-cooled equipment. The results indicate that free-convection - and radiationcooled equipment can be operated in higher temperature environments with spot cooling; moreover, the cooling requirements for forced-convection-cooled equipment can be reduced.

5 citations

Journal ArticleDOI
C. Goltsos1, m. Mark
Abstract: In electronic packages where high voltages exist, a high dielectric strength environment surrounding the components is necessary. Liquid-filled units have used various oils which in addition to dielectric strength provide good thermal paths for cooling; evaporative-cooled units often use refrigerants. In either case allowance, volume-wise, must be made for thermal expansion of the fluid. A simple, novel, weight-saving technique for accomplishing this consists essentially of replacing the conventional container with a flexible one (for example, fabric-reinforced rubber). The flexible container then expands and contracts accomodating volume variations in the fluid. Design details, test results, and a general evaluation illustrating the adaptability of the flexible container as a practical design tool are discussed.

5 citations

Journal ArticleDOI
Abstract: Value Engineering is coming of age° In the hands of experienced product engineers it can grow into a truly professional tool for improving the competitive position of a company. It applies the precise techniques of science and engineering to those areas of evaluation, programming, and decision-making which have heretofore been governed by intuition. In estimating, bidding, and scheduling, Value Engineering saves not only money but also elapsed time. In design, development and production, it seeks the best ratio between desirable qualities and their cost in available resources. This paper will illustrate how Value Engineering can be utilized within the conventional engineering disciplines to provide the quantitative data necessary for better balanced specifications, for reducing areas of uncertainty in product planning, and for better decisions in both product design and program management.

1 citations

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