TEMISTh has launched the manufacture of DESOLINATION heat exchanger core!

TEMISTh has launched the manufacture of DESOLINATION heat exchanger core!

by | 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!

Izmenjevalniki toplote 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.

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Družba Baker Hughes na sejmu ADIPEC 2023 predstavlja vodilno vlogo na področju trajnostnega razvoja

Družba Baker Hughes na sejmu ADIPEC 2023 predstavlja vodilno vlogo na področju trajnostnega razvoja

by | 24. oktober 2023 | Events

Pod pokroviteljstvom šejka Mohameda Bin Zayeda Al Nahyana, ADIPEC 2023 služil kot globalna platforma za transformativne rešitve na področju energije in trajnosti. Med prispevki je bila tudi predstavitev družbe Baker Hughes o njeni vlogi pri projektu DESOLINATION.

Ključni poudarki predstavitve družbe Baker Hughes so bili naslednji:

  • Napredne rešitve za turbinske stroje: Družba Baker Hughes je predstavila inovacije na področju aksialnih ekspanderjev in centrifugalnih črpalk, optimiziranih za Rankinove cikle sCO₂, ki omogočajo učinkovito pridobivanje energije v sistemih razsoljevanja, ki jih poganja CSP.
  • Odličnost na področju znanosti o materialih: Podjetje je podrobno opisalo stroge postopke testiranja in optimizacije, ki zagotavljajo kemijsko združljivost in trajnost mešanic CO₂, uporabljenih v njegovih inovativnih ciklih.
  • Trajnostna učinkovitost: Družba Baker Hughes je predstavila rešitve, ki lahko zmanjšajo emisije CO₂ do 70% v primerjavi s konvencionalnimi metodami razsoljevanja, hkrati pa dosežejo učinkovitost cikla več kot 42%.
Oglejte si predstavitev BH

Družba Baker Hughes je poudarila svoj ključni prispevek k projektu DESOLINATION, mednarodnemu prizadevanju 19 partnerjev za združitev koncentrirane sončne energije (CSP) z razsoljevanjem z direktno osmozo (FO). Projekt je namenjen reševanju perečih svetovnih izzivov, kot sta pomanjkanje vode in emisije ogljika, pilotni obrat pa je načrtovan v Savdski Arabiji leta 2025.

Sodelovanje družbe Baker Hughes v projektu DESOLINATION poudarja njeno zavezanost k spodbujanju inovacij na področju povezav med vodo in energijo. Z uporabo svojega strokovnega znanja na področju turbinskih strojev, znanosti o materialih in vključevanja obnovljivih virov energije podjetje spodbuja rešitve, ki obravnavajo ključne globalne izzive.

Udeležence sejma ADIPEC 2023 je navdihnila vizija družbe Baker Hughes za trajnostno prihodnost - prihodnost, v kateri napredna tehnologija izpolnjuje naraščajoče povpraševanje po energetsko učinkovitih sistemih za razsoljevanje vode z nizkimi emisijami ogljika.
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DOI: https://doi.org/10.2118/215993-MS

Soós Ernő International Scientific Conference (VSZI’23)

Soós Ernő International Scientific Conference (VSZI’23)

by | 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,

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Napreden sistem razsoljevanja z inovativnim energetskim ciklom CO2, integriranim z obnovljivimi viri energije

Napreden sistem razsoljevanja z inovativnim energetskim ciklom CO2, integriranim z obnovljivimi viri energije

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

Povečanje emisij CO2 povzroča velike težave, kot sta taljenje ledenikov in dviganje morske gladine. Projekt DESOLINATION, ki pomaga pri reševanju teh težav, uvaja najsodobnejši energetski cikel za sisteme razsoljevanja, pri čemer se kot naslednja generacija delovnih tekočin uporabljajo inovativne mešanice na osnovi CO2. V tem članku so predstavljene prednosti projekta in tehnične ovire, ki so bile premagane pri načrtovanju potrebnih strojev.
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Pri razvoju toplotnega cikla in izbiri delovne tekočine so bili upoštevani ključni dejavniki, vključno z varnostjo, vplivom na okolje, združljivostjo materialov in učinkovitostjo.

Sistem temelji na turbinskih strojih, zlasti črpalki in ekspanzerju, za rekuperacijo toplote iz primarnega cikla, ki ga poganja sončna energija. Takšna postavitev omogoča prilagodljivo proizvodnjo toplote ob simulaciji različnih sončnih pogojev.

Velik izziv je bil izbrati pravo mešanico CO2, da bi uravnotežili učinkovitost in praktičnost. Z dodajanjem “dopanta” CO2 je bilo mogoče prilagoditi lastnosti tekočine, kar je omogočilo, da je sistem namesto kompresorja uporabljal črpalko. S tem je izmenjava toplote učinkovitejša, saj tekočina ohranja temperaturo, primerno za sončni vir toplote. Da bi našli najboljše dopante za učinkovitost in združljivost, je bilo preizkušenih več dopantov.

Dodaten izziv je bila združljivost materialov, saj mora oprema prenašati temperature do 550 °C, ki so značilne za tehnologijo sončne toplotne energije. Končna izbira dopanta je bila kompromis med zmanjšanjem korozije in povečanjem zmogljivosti.

Cilj projekta DESOLINATION je, da bi prvi pilotni obrat začel obratovati leta 2025 in ponudil konkurenčne rešitve s sončno-termalnim izkoristkom nad 42%, učinkovito proizvodnjo sladke vode in do 70% nižjimi emisijami CO2 na kubični meter razsoljene vode v primerjavi s sedanjimi sistemi.

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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

by | 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.

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