National University of Singapore

Poh Seng Lee

Chuan Sun

Yong Chen

Lee Liong Matthew Law

Navin Raja Kuppusamy

Mrinal Jagirdar

Matthew Lee Liong Law

Nuttawut Lewpiriyawong

Karthik Balasubramanian

Kent Loong Khoo

The invention provides a two phase heat transfer device comprising an inlet for receiving a heat transfer fluid, and; an array of heat transfer fins in spaced relation; primary spaces between said heat transfer fins defining primary channels parallel to a path from the inlet to outlet, and; oblique spaces between said heat transfer fins defining oblique channels arranged at an angle to said primary channels. It is preferable that walls defining the primary and oblique spaces provide nucleate boiling regions and the interruption of fully developed convective boiling regions when a heat transfer fluid is passed through the inlet to the outlet.

Device and method for a two phase heat transfer

A heat and mass exchanger system comprising: a first array of tubes, each of said tubes having an coating of a desiccant about a peripheral surface; an interstitial space between said tubes, said interstitial space arranged to receive a fluid, such that at least a portion of the peripheral surface is a wetted area of said fluid; said tubes arranged to transport a heat transfer liquid within an internal bore, said fluid and heat transfer liquid in heat transfer communication; wherein the cross sectional shape of each of said tubes is convex.

System and method for dehumidification

The present disclosure generally relates to a heat exchanger () and a heat exchange unit () for the heat exchanger (). The heat exchange unit () comprises: a plurality of plain fins () stacked perpendicularly to a first plane, such that a first fluid () is communicable through the first plane between the fins (); and a plurality of tubes () for communicating a second fluid () therethrough for heat exchange with the first fluid (), the tubes () extending perpendicularly through the fins (), each tube () comprising an oblique cross-section () having a pair of opposing first sides () and a pair of opposing second sides (). For each oblique cross-section (), the first sides () are perpendicular to the first plane and the second sides () are angled approximately 60&#xb0; to the first plane, the first sides () being longer than the second sides ().

Heat exchange unit and method of manufacture thereof

A server (), a server rack () and a data centre () are provided. The server () includes a housing () defining a gaseous flow passage. A plurality of active components () and a plurality of passive components () are provided in the housing (). A plurality of liquid cooling devices () is attached to respective ones of the active components ().

Server rack and data center including a hybrid-cooled server

A multi-fluid heat exchanger () includes a primary section () and a secondary section () arranged contiguous with the primary section (). The multi-fluid heat exchanger () further includes a first heat transfer channel () arranged to carry a first fluid () and the first heat transfer channel () extends between the primary section () and the secondary section () and carries the first fluid () between the sections (). The multi-fluid heat exchanger () also includes a second heat transfer channel () disposed only at the primary section () and arranged to carry a second fluid () for heat exchange between the first and second fluids () at the primary section () and a third heat transfer channel () disposed only at the secondary section () and arranged to carry a third fluid () for heat exchange between the first and third fluids () at the secondary section ().

Multi-fluid heat exchanger

A heat sink assembly comprising a heat sink including a plurality of parallel fins, said fins defining a plurality of channels; said heat sink divided into two stages; said first stage positioned in the upstream portion of said heat sink and arranged such that fluid entering the heat sink is under closed channel flow conditions within said plurality of channels and; the second stage positioned in the downstream portion, said second stage including a void above said channels so as to have open channel flow in said channels for fluid exiting said heat sink.

Growing community of inventors

Singapore, Singapore

Poh Seng Lee