Funded Projects

Title: HierARchical Multiscale NanoInterfaces for enhanced Condensation processes
Acronym: HARMoNIC
Leader: Dr. Evangelos Gogolides
Start Date: 01/10/2018
End Date: 30/09/2021
Category: H2020-FETOPEN-1-2016-2017 Research and Innovation action
Website https://harmonic.ethz.ch/

Description:

This project focuses on key challenges facing human society: continuously increasing global demands for electricity as well as potable drinking water. Our long term vision consists of developing solutions related to water utilization for significant enhancement in i) efficiency of thermal power generation and ii) water harvesting to reduce the shortfall in global fresh water supply. The novel concepts that we propose rely on the realization of:

  1. Precisely engineered, random yet hierarchical interface nanotextures, also with, controllable directionality,
  2. Introducing a new norm of random biphilicity in the above interfaces at the submicron level,
  3. Realization of novel superhydrophobic membranes through controlled coating of commercial hollow fiber membranes.
  4. Novel methods of nanometrology to precisely and rationally describe the complex interfaces.

Concept 1 is related to heat transfer exchange via dropwise condensation, where we target lifetime performance relevant to industrial surface condensers, while maximizing their heat transfer coefficient by up to an order of magnitude.

By employing concept 2 we target novel material systems focusing on dew water harvesting in humid environments.

Concept 3 targets new surface modification approaches for commercial membranes to achieve high efficiency in water desalination while ensuring anti-biofouling.

For the first three concepts described above, a key component of our work will be to ensure economic scalability, of the precisely controlled textures, to large surface areas so that they can be converted to industrial products.

For achieving optimal design, quantification and repeatable manufacturability of the aforementioned interfaces, we will employ novel metrology methods for hierarchical surfaces (concept 4) which will provide important theoretical feedback and understanding of the influence of critical surface structural parameters, through the entire project duration.

HARMoNIC is a FETOPEN project within the RIA – Research and Innovation actions. The project started on 1st October 2018 and has a duration of three years until 30th September 2021.