Self‐Cleaning Surfaces for Heat Recovery During Industrial Hydrocarbon‐Rich Gas Cooling: An Experimental and Numerical Study
Artikel i vetenskaplig tidskrift, 2019

The cooling of hydrocarbon-rich gases in industrial processes often leads to severe fouling, which impedes heat recovery, restricts operative conditions and increases maintenance costs. In the present work, we investigate whether self-cleaning surfaces represent a possible solution to overcome this technological bottleneck. Hydrophilic and hydrophobic treatments of compact heat exchanger plates are experimentally and numerically investigated during cooling of syngas produced from biomass gasification. The experimental evidences related to the operation of heat exchanger plates are assessed first, and a deeper insight into the relevant phenomena is thereafter obtained by performing numerical simulations. Our analysis identifies the hydrophobic treatment as the most promising solution and unveils the induced self-cleaning mechanism: the formation of small-sized and movable condensed droplets that enhance the collection and removal of gas impurities. These findings open up new routes towards the development of cheaper, more efficient and sustainable gas cooling systems.

self-cleaning

gasification

fouling

multiphase

hydrophobic

Författare

Dario Maggiolo

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Martin Seemann

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Henrik Thunman

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Olga Santos

Alfa Laval Lund AB

Anton Larsson

Göteborg Energi AB

Srdjan Sasic

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Henrik Ström

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

AICHE Journal

0001-1541 (ISSN) 1547-5905 (eISSN)

Vol. 65 1 317-325

Innovativa omvandlingsprocesser vid Chalmers kraftcentral

Energimyndigheten, 2016-09-24 -- 2021-04-30.

Belagda värmeväxlare som självrengörande produktgaskondensorer

Energimyndigheten, 2017-01-01 -- 2018-12-31.

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Produktion

Energi

Materialvetenskap

Ämneskategorier

Energiteknik

Pappers-, massa- och fiberteknik

Kemiska processer

Strömningsmekanik och akustik

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Chalmers kraftcentral

DOI

10.1002/aic.16394

Mer information

Senast uppdaterat

2018-12-11