Introduction This article will discuss air-cooled compact heat exchanger design using published data. Kays & London's Compact Heat Exchangers [1] contains measured heat transfer and pressure drop data on a variety of circular and rectangular passages including circular tubes, tube banks, straight fins, louvered fins, strip or lanced offset fins, wavy fins and pin fins. … [Read more...]
Modeling Air-Cooled Heat Sinks As Heat Exchangers
Introduction The thermal resistance of a heat sink is a convenient way of describing its performance but, unlike its electrical counterpart, the thermal resistance of a heat sink is not a constant: it changes significantly with air flow. How we "understand" heat sinks is revealed by the models we use to describe their thermal resistance. Most thermal engineers use a single-term … [Read more...]
Generative Design for Electronics Cooling
Co-Authored by: Danny J. Lohan, Yuqing Zhou, and Ercan M. Dede Toyota Research Institute of North America INTRODUCTION Generative design is an iterative design process that involves the use of a program to generate a set of optimized designs that meet product performance requirements and constraints. Methods that transform statements of performance requirements into … [Read more...]
Recirculating Chillers for Industrial Lasers
Industrial lasers are used for a wide range of applications including cutting, welding, micro-machining, additive manufacturing, and drilling. No matter the application, industrial laser systems generate a significant amount of heat. There are several different types of industrial laser technologies ultimately distinguished by the power density of the laser and its use. … [Read more...]
The Future of Data Center Cooling: Passive Two-Phase Cooling
Introduction The world is becoming more digitalized than ever before. The workload of data centers has tripled since 2015 [1]. Despite huge progress in thermal management, traditional air-based cooling technology still represents a critical factor that significantly impacts data center operating costs and the environment. Depending on the size and operating conditions of a … [Read more...]
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