TEMISTh has launched the manufacture of DESOLINATION heat exchanger core!

TEMISTh has launched the manufacture of DESOLINATION heat exchanger core!

af | nov 9, 2023 | Milestones, Results - Combination of CSP pland and forward osmosis desalination

The DESOLINATION project has reached an important milestone: after an initial design and simulation phase carried out by our project partner TEMISTh, the first heat exchanger model has now been printed!

Varmevekslere can take different forms depending on many parameters: temperatures, pressures, chemical properties of the fluids, etc. But they are critical to the heat transfer within the CSP cycles to recover heat from the sun and make the turbine work.

In DESOLINATION, specific work will be on exchanging heat between the power cycle (air in the existing plant, CO2 in the innovative one) and the desalination draw solution (highly concentrated solution). New Printed Circuit Heat Exchangers (PCHEs) and Printed Fin Heat Exchangers (PFHEs) will thus be produced.

Following a simulation and design phase for supercritical CO2 and molten salt, our project partner TEMISTh has launched the manufacture of the Heat Exchanger core (system used to transfer heat between a source and a working fluid).

The aim of this first mock-up is to answer technical questions such as powder removal, assembly and design validation.

The next step is to test the mock-up on an sCO2 loop for validation.

Back to results
Baker Hughes viser lederskab inden for bæredygtighed på ADIPEC 2023

Baker Hughes viser lederskab inden for bæredygtighed på ADIPEC 2023

af | 24. oktober 2023 | Events

Under protektion af H.H. Sheikh Mohamed Bin Zayed Al Nahyan, ADIPEC 2023 fungerede som en global platform for transformative løsninger inden for energi og bæredygtighed. Blandt bidragene var Baker Hughes’ præsentation af sin rolle i DESOLINATION-projektet.

De vigtigste højdepunkter fra Baker Hughes’ præsentation omfattede:

  • Avancerede løsninger til turbomaskiner: Baker Hughes præsenterede innovationer inden for aksiale ekspandere og centrifugalpumper, der er optimeret til sCO₂ Rankine-cyklusser, hvilket muliggør effektiv energigenvinding i CSP-drevne afsaltningssystemer.
  • Excellence i materialevidenskab: Virksomheden har gennemført strenge test- og optimeringsprocesser, der sikrer kemisk kompatibilitet og holdbarhed af de CO₂-blandinger, der bruges i de innovative cyklusser.
  • Bæredygtig performance: Baker Hughes fremviste løsninger, der kan reducere CO₂-udledningen med op til 70% sammenlignet med konventionelle afsaltningsmetoder, samtidig med at der opnås en cykluseffektivitet på over 42%.
Se BH-præsentation

Baker Hughes fremhævede sine kritiske bidrag til DESOLINATION, en international indsats med 19 partnere, der er designet til at fusionere koncentreret solenergi (CSP) med afsaltning ved hjælp af fremadrettet osmose (FO). Projektet har til formål at løse presserende globale udfordringer som vandmangel og CO2-udledning, og der er planlagt et pilotanlæg i Saudi-Arabien i 2025.

Baker Hughes’ engagement i DESOLINATION understreger virksomhedens forpligtelse til at fremme innovation i vand-energi-sammenhængen. Ved at udnytte sin ekspertise inden for turbomaskineri, materialevidenskab og integration af vedvarende energi fremmer virksomheden løsninger, der tager fat på kritiske globale udfordringer.

Deltagerne i ADIPEC 2023 blev inspireret af Baker Hughes’ vision om en bæredygtig fremtid - en fremtid, hvor avanceret teknologi opfylder den voksende efterspørgsel efter energieffektive vandafsaltningssystemer med lavt CO2-udslip.
Read publication

Authors:

DOI: https://doi.org/10.2118/215993-MS

Soós Ernő International Scientific Conference (VSZI’23)

Soós Ernő International Scientific Conference (VSZI’23)

af | okt 20, 2023 | Events, News, Results - Draw solution

After presenting the ‘Implementation of thermo-responsive polyalkylene glycol-based draw solutions in the forward osmosis process‘ (co-prepared by I. Petrinić, N. Jančič, and H. Bukšek) at Soós Ernő’s international scientific conference on Water and wastewater treatment in the industry in 2022 (VSZI’22), our project partner, the University of Maribor, is back with a new presentation for the 2023 edition!

Irena Petrinić, Ross D. Jansen-van Vuuren, Ana Ambrož, Thomas Luxbacher, and Hermina Bukšek, from the University of Maribor (DESOLINATION partner) gave an oral presentation focusing on ‘Thermo-responsive PAG based commercial draw solutions for forward osmosis‘ at Soós Ernő 2023 (VSZI’23) organised by the Soós Ernő Research and Development Center, University of Pannonia Nagykanizsa – University Center for Circular Economy and the Foundation for Higher Education of Kanizsa.

The production of clean drinking water is also a priority in countries with abundant water resources and growing solvent demand. The main goal of the research center, founded in 2014, is to carry out international researches in the field of water purification and water treatment, by using the research results and experience in water purification and water treatment in the Nagykanizsa region which is based on decades of history. It is also of utmost importance for us to train specialists who are able to solve various water and waste water treatment problems in industries and public utilities.

In order to support this goal and provide the future professionals, talent management is needed. Elementary and high school students can have the insight into the work of the research center as we offer them lectures, open lab sessions and summer camps, all promoting natural sciences.

The annual Soós Ernő International Scientific Conference, through the presentations and discussions of scientific and industrial professionals in the field of water and waste water treatment, will allow knowledge sharing, networking and exchange of experience which are essential for development,

Download VSZI'22 poster
More information about the event
Back to all news

Et avanceret afsaltningssystem med en innovativ CO2-kraftcyklus integreret med vedvarende energikilder

Et avanceret afsaltningssystem med en innovativ CO2-kraftcyklus integreret med vedvarende energikilder

af | 18. oktober 2023 | Publications, Results - CO2 Mixtures in thermodynamic cycles

Stigningen i CO2-emissioner forårsager store problemer som smeltende gletsjere og stigende havniveauer. For at hjælpe med at tackle disse problemer introducerer DESOLINATION-projektet en banebrydende kraftcyklus til afsaltningssystemer ved hjælp af innovative CO2-baserede blandinger som den næste generation af arbejdsvæsker. Denne artikel fremhæver projektets fordele og de tekniske forhindringer, der blev overvundet i forbindelse med udformningen af det nødvendige maskineri.
Read publication

Der blev taget højde for vigtige faktorer ved udviklingen af den termiske cyklus og valget af arbejdsvæske, herunder sikkerhed, miljøpåvirkning, materialekompatibilitet og effektivitet.

Systemet er baseret på turbomaskineri - især en pumpe og en ekspander - til at genvinde varme fra en primær soldrevet cyklus. Denne opsætning giver mulighed for fleksibel varmeproduktion, mens man simulerer forskellige solforhold.

En af de store udfordringer var at vælge den rigtige CO2-blanding for at skabe balance mellem effektivitet og praktisk anvendelighed. Ved at tilsætte et “dopingmiddel” til CO2 kan væskens egenskaber justeres, så systemet kan bruge en pumpe i stedet for en kompressor. Det gør varmeudvekslingen mere effektiv ved at holde væsken på en temperatur, der passer til solvarmekilden. Flere dopingstoffer blev testet for at finde det bedste i forhold til effektivitet og kompatibilitet.

Materialekompatibilitet var en anden udfordring, da udstyret skal kunne håndtere temperaturer helt op til 550 °C, hvilket er typisk for solvarmeteknologi. Det endelige valg af dopingstof var en afvejning mellem at reducere korrosion og maksimere ydeevnen.

DESOLINATION-projektet sigter mod at lancere sit første pilotanlæg i 2025 og tilbyde konkurrencedygtige løsninger med en solvarmeeffektivitet på over 42%, effektiv ferskvandsproduktion og op til 70% lavere CO2-emissioner pr. kubikmeter afsaltet vand sammenlignet med de nuværende systemer.

Authors:

DOI: https://doi.org/10.2118/215993-MS

Characterization of the physical properties of the thermoresponsiveblock-copolymer PAGB2000 and numerical assessment of its potentialities in Forward Osmosis desalination

Characterization of the physical properties of the thermoresponsiveblock-copolymer PAGB2000 and numerical assessment of its potentialities in Forward Osmosis desalination

af | okt 16, 2023 | Publications, Results - Draw solution

Forward Osmosis is a promising strategy for desalination processes, however some aspects have to be better characterized to make it competitive with other affirmed technologies. One of these aspects is the selection of the draw agent, i.e., a polymeric solution that has to fulfill different requirements to guarantee both high membrane performances and good regeneration process. Previous studies have identified a thermoresponsive copolymer known as PAGB2000 as potential draw agent. However, in the open literature there is no information on the thermo-physical properties required for a fully characterization of the polymer itself, hence, different experimental campaigns have been conducted to quantify: phase behavior, osmotic pressure, density, dynamic viscosity, thermal conductivity, thermal diffusivity and isobaric specific heat capacity. These properties were then used in a computational model to simulate the whole desalination process. Recovery ratio, specific electric consumption and specific thermal consumption were compared with the ones obtained in a previous work, showing that a detailed characterization of the thermo-physical properties is required to get accurate and realistic predictions of the system performance.

Keywords: Polymer, Draw agent, Forward osmosis, Desalination.

Read publication
Authors:

, , , , , , , , , 

Back to all publications