Proceedings ArticleDOI
Two-phase liquid cooling system for electronics, part 2: Air-cooled condenser
Raffaele L. Amalfi,Todd Salamon,Nicolas Lamaison,Jackson B. Marcinichen,John R. Thome +4 more
- pp 678-686
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TLDR
In this paper, an experimental study investigating the thermal performance of a two-phase thermosyphon for electronics cooling is presented, which consists of an evaporator with 18 individual microcooling zones connected via riser and downcomer tubes to an air-cooled condenser.Abstract:
An experimental study investigating the thermal performance of a two-phase thermosyphon for electronics cooling is presented in this article. Two-phase cooling implemented using a gravity-driven thermosyphon-based system represents an efficient solution for dissipating high power densities compared to traditional air-cooling approaches, allowing for increased reliability and reduced power consumption. The thermosyphon-based system consists of an evaporator with 18 individual microcooling zones connected via riser and downcomer tubes to an air-cooled condenser. Experiments were carried out with working fluid R134a for filling ratios ranging from 45% to 65%, heat loads from 102 W to 1841 W and air flow rates from 516 m3/h to 1404 m3/h. Robust thermal performance was observed for the entire range of operating conditions. In particular, at the optimum filling ratio of 50%, minimum air flow rate of 516 m3/h and uniform heat load of 1841 W, the temperature difference between the evaporator and ambient air was less than 20 K with a COP of 102, while at the highest fan speed of 1404 m3/h this temperature difference was reduced to 8.9 K, with a reasonable CoP of 11. The test results show the high efficiency of the current hybrid air- and liquid-based cooling technology for removing heat from electronics to the ambient.read more
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Journal ArticleDOI
Experimental Analysis of the Condenser Design in a Thermosiphon System for Cooling of Telecommunication Electronics
TL;DR: In this article, the performance of a two-phase air-cooled thermosyphon for cooling shelf-level telecommunications equipment with 18 line cards was evaluated in a front-to-back airflow configuration.
Proceedings ArticleDOI
General Thermosyphon Simulation Code for Electronics Cooling Applications
TL;DR: In this article, the authors present an updated description of the general simulation software presented at ITHERM 2017, which is able to analyze and design thermosyphon-based cooling systems with high accuracy.
Proceedings ArticleDOI
Thermal Interface Material Enablement of Off-Board Two-Phase Cooling
TL;DR: In this paper, a two-phase, refrigerant-cooled cold plate (evaporator) is placed between the electrical backplane and circuit pack cards that slide into the shelf.
Journal ArticleDOI
Role of a Liquid Accumulator in a Passive Two-Phase Liquid Cooling System for Electronics: Experimental Analysis
Proceedings ArticleDOI
Ultra-Compact Micro-Scale Heat Exchanger for Advanced Thermal Management in Datacenters
TL;DR: In this article, the authors focused on the experimental characterization of two-phase heat transfer performance and pressure drops within an ultra-compact heat exchanger (UCHE) suitable for electronics cooling applications.
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