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Spray cooling high power dissipation Applications (SANGRIA): From fundamentals to Design

Lead Research Organisation: IMPERIAL COLLEGE LONDON
Department Name: Chemical Engineering

Abstract

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Publications

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Saha A (2026) Isobaric Molecular Dynamics Study of Liquid Film Boiling. in Langmuir : the ACS journal of surfaces and colloids

 
Description This study employs piston-based isobaric molecular dynamics simulations to analyse the liquid film beneath nucleating bubbles. The isobaric piston system is validated across different liquid and gaseous systems, and the Lennard-Jones (L-J) and repulsive-only force fields are applied to evaluate their suitability for boiling simulations. Using this system, the effects of surface wettability and pressure on non-evaporating films are explored. Additionally, a novel boundary force field is developed to mimic the behaviour of boundary molecules fully-immersed in the liquid pool, enabling the simulation of boiling in a thick liquid film. The interfacial thermal resistance and accommodation coefficient are calculated based on the measured depletion rate of the liquid film with different thicknesses, providing valuable insights into the fundamental mechanisms of boiling.
Exploitation Route The findings will advance the field of boiling heat transfer, which forms the basis of energy and energy integration systems.
Sectors Chemicals

Education

Energy

 
Description BOiliNg flows in SmAll and mIcrochannels (BONSAI): From Fundamentals to Design
Amount £846,008 (GBP)
Funding ID EP/T03338X/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 12/2020 
End 09/2024