Packaging with a Flexible Container for Oil-Filled or Evaporative-Cooled Electronic Equipment

wall Superheat Excursions in the Boiling incipience of Dielectric Fluids

Abstract: Many of the candidate fluids for immersion cooling of microelectronic components possess both low surface tension and high gas solubility. As a consequence, ebullient heat transfer with such fluids is accompanied by nucleation anomalies and a frequently observed wall temperature overshoot. The difficulty in preventing this thermal excursion and in predicting its magnitude constrains the development of immersion cooling systems. This paper begins with a brief review of the mechanisms that may be responsible for delayed nucleation and examines the limited literature on incipience superheat excursions.

Thermal Design of Immersion Cooling Modules for Electronic Components

Abstract: Direct immersion of electronic components in low-boiling point, dielectric fluids can provide a benign local ambience and accommodate substantial spatial and temporal power variations while minimizing component temperature excursions and failure rates. Following a review of possible immersion cooling configurations and the thermal mechanisms active in vapor-space and submerged condenser modules, attention is focused on the operational limits and relations for predicting submerged condenser performance. Finally, descriptions of three likely applications of submerged condenser technology are presented.

Convective Immersion Cooling of Parallel Vertical Plates

Abstract: Complete immersion of electronic assemblies, in fluids of appropriately high dielectric strength and low dielectric constant, offers a most promising alternative to conventional thermal control measures. The present study is aimed at providing an analytical basis for the design and optimization of convective immersion cooling systems by focusing on the analytical development and experimental verification of composite relations for the natural convection heat transfer coefficients prevailing along the Surfaces of immersed, uniformly heated plates in both symmetric and asymmetric configurations.

Boiling and condensation in a liquid-filled enclosure,

Abstract: Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1971.

Operational limits of a submerged condenser

Abstract: The operating characteristics of an experimental submerged condenser system are described and related to specific operational modes. The relevant thermal transport mechanism are examined and shown to accurately define the upper and lower bounds of system operation. A non-dimensional vapor bubble collapse length is shown to govern the rate and mechanism of heat transfer at the submerged condenser surface.