Meillä on ilo ilmoittaa, että DESOLINATION-projektin toinen uutiskirje on nyt saatavilla! Viimeisen puolen vuoden aikana yhteistyöryhmämme on edistynyt merkittävästi kohti tavoitettamme, joka on hiilidioksidipäästöjen vähentäminen suolanpoistoprosessissa kuivilla alueilla.
The global community acknowledges water demand and accessibility as major challenges impacting human well-being. Forward Osmosis (FO) desalination coupled with concentrate solar power might represent a promising solution to combine water production with renewable sources. This work assesses the performance of a liquid-liquid separator (coalescer), an important component of the FO process, when using a polymeric thermo-responsive draw agent (PAGB2000). Experimental characterization of the coalescer is carried out for different regeneration temperatures (from 50 to 80 °C), residence time, draw concentration (from 0.30 to 0.60) and metal meshes. The separation efficiency of the coalescer can be as high as 95% for high residence time and regeneration temperatures (> 70 °C). Eventually, an analytical expression of the coalescer efficiency as function of the main operating parameters is proposed both to support desalination plant design and to enable understanding its applicability beyond its original context.
Authors:
Igor Matteo Carraretto, Davide Scapinello, Riccardo Bellini, Riccardo Simonetti, Luca Molinaroli, Luigi Pietro Maria Colombo, Giampaolo Manzolini – Dipartimento di Energia, Politecnico di Milano, Via Lambruschini 4, Milano 20156, Italy
Together, our project partners, TEMISTH ja POLIMI sekä LUT olivat tyytyväisiä osallistuessaan arvostettuun Turbo Expo (Turbomachinery Technical Conference & Exposition) in London, England, United Kingdom, from June 24-28, 2024.
TEMISTH and POLIMI esitteli uusinta työtään Suolanpoistohankkeen esittelylaitoksen alustava kuvaus: suunnittelu ja suunnittelun ulkopuolinen toimintakyky.
Marco Astolfi, from Politecnico di Milano (our project coordinator) was invited to present the project and participate in discussions to share ideas and gather suggestions from the supercritical CO2 community.
LUT osallistui aktiivisesti useisiin paneelikeskusteluihin, joissa keskityttiin aiemmista ja meneillään olevista kokeellisista sCO2-hankkeista saatuihin kokemuksiin.
Konferenssi tarjosi arvokkaita tilaisuuksia verkostoitua ja vaihtaa näkemyksiä kollegoiden kanssa eri puolilta maailmaa.
Osallistujilla oli myös mahdollisuus osallistua useisiin korkeatasoisiin tieteellisiin esityksiin. Tapahtuma osoittautui inspiraation lähteeksi, joka antoi LUT-tiimille uusia ideoita sekä nykyisiä että tulevia hankkeita varten.
Tämänvuotisessa tapahtumassa keskityttiin kriittisiin toimenpiteisiin, joita tarvitaan, jotta työntövoiman ja energian nollapäästöinen tulevaisuus voidaan saavuttaa. Osallistujat tutustuivat mullistaviin teknologioihin, jotka menevät perinteisiä kaasuturbiiniratkaisuja pidemmälle, mukaan lukien vetyä koskevat edistysaskeleet. Ohjelmassa korostettiin myös laajempaa ekosysteemiä, joka tukee kestäviä tuotteita, kuten vähähiilisten synteettisten polttoaineiden vihreää energiaa, sekä keskeisiä aloja, kuten sertifiointia, sääntelyä ja mittakaavaetuja. Osallistujat osallistuivat yhteisen etenemissuunnitelman laatimiseen kohti innovatiivisempaa ja kestävämpää tulevaisuutta.
Carbon dioxide binarFIGy mixtures are increasingly considered as working fluids in transcritical power cycles, due to the capability to perform liquid-phase compression even at high environmental temperatures. However, a robust thermodynamic model is essential for optimal and reliable design conditions. It is widely recognized that fine-tuning the equation of state with experimental vapor-liquid equilibrium data of the mixture significantly enhances its reliability.
In this work, a new apparatus dedicated to vapour-liquid equilibrium measurements of mixtures is presented. The proposed method consists of a constant-volume system, where bubble points are identified from the divergence of slope of the isochoric lines between the two-phase and liquid regions, in the temperature-pressure plane. The temperature and pressure limits of the apparatus are 503 K and 25 MPa. Bubble points of CO2 binary mixtures with hexafluorobenzene (C6F6) and n-pentane (C5H12) have been measured and compared with previous literature data for validation purposes. Then, the CO2 mixture with octafluorocyclobutane (c-C4F8) is experimentally studied, addressing a literature gap in bubble point data.
The data are used to calibrate the thermodynamic model, leading to affordable design conditions of the power cycle compared to the non-optimized thermodynamics scenario, in a concentrated solar power tower plant.
Authors:
The Gulf Cooperation Council (GCC) member countries encompass the Kingdom of Bahrain, Kingdom of Saudi Arabia, State of Kuwait, State of Qatar, Sultanate of Oman, and United Arab Emirates.
the webinar was designed to offer a comprehensive overview of the Horizon Europe Programme, focusing particularly on the avenues open to GCC nations. It emphasized the collaboration framework under Pillar II “Excellence Science,” highlighting ongoing joint projects and sharing best practices for engagement in the Marie Sklodowska-Curie Actions. Furthermore, the event addressed opportunities within Mission Innovation, a global initiative, and underscored potential pathways within the European Innovation Council.
The primary goal of the webinar was to promote enhanced collaboration among GCC countries within the Horizon Europe framework, especially in sectors of mutual interest. By facilitating knowledge sharing and fostering strategic partnerships, the webinar aimed to bolster research and innovation capacities across the region. This initiative ultimately seeks to empower GCC nations to collectively tackle shared challenges and capitalize on opportunities in science, technology, and innovation.
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