Massachusetts Institute of Technology

University of California

Shankar Narayanan

Evelyn N Wang

Ian Salmon McKay

Sungwoo Yang

Ryan Enright

Hyunho Kim

Sameer R Rao

Shalabh Chandra Maroo

Ari Samuel Umans

Omar M Yaghi

Rong Xiao

Hiroyasu Furukawa

Eugene A Kapustin

Young Suk Nam

Rishi Raj

Heat exchange structure. A hydrophilic, thermally conductive porous medium includes nanostructures formed substantially uniformly throughout the porous medium providing a balance of capillary and viscous forces to self-regulate a liquid-vapor contact line. A suitable porous medium is copper. A method for making the structure is also disclosed.

Bi-directional porous media phase change heat exchanger

A water-harvesting system can operate with a material that can take up and release water with minimum energy requirements and powered by low-grade energy sources, such as sunlight, in order to potentially allow its deployment into households, especially those located in sunny regions. A water-harvesting method and system can include vapor adsorption using a porous metal-organic framework. In certain embodiments, the porous metal-organic framework can include metal-organic framework in ambient air with low relative humidity, typical of the levels found in most dry regions of the world.

Sorption-based atmospheric water harvesting device

An adsorption system can be used as part of a climate control system in a vehicle or in any other space requiring heating or cooling. An adsorbent bed can include a plurality of plates, a layer including an adsorbent material adjacent to a portion of at least one plate; and a plurality of passages between the plates.

Adsorption system

Evaporative heat transfer system. The system includes a substrate and a plurality of substantially parallel, spaced-apart ridges extending from the substrate forming vertical liquid manifolds therebetween. A nanoporous membrane is supported on the ridges and a pump delivers a dielectric fluid across the ridges. The fluid is drawn through the liquid manifolds via capillarity provided by the nanoporous membrane and evaporates to dissipate heat flux through the substrate. A preferred dielectric fluid is pentane. It is preferred that membrane porosity vary across the membrane to tailor thermal resistances to limit temperature rises.

Evaporative heat transfer system

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Chestnut Hill, MA, United States of America

Shankar Narayanan