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Integration of solid-oxide fuel cells and absorption refrigeration for efficient combined cooling,heat and power production

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Clean Energy 2020年第4期4卷 328-348页

作者： k.zysztof Matuszny Tohid n.Borhani Seyed A.nabavi Dawid P.Hanak Energy and Power School of WaterEnergy and EnvironmentCranfield UniversityBedfordBedfordshireMK430ALUK School of Engineering and Physical Sciences Heriot-Watt UniversityEdinburghEH144ASUK

Combined cooling,heating and power(CCHP)systems are characterized by a substantially higher energy-utilization efficiency compared to standalone *** this study,an integrated system comprising a solid-oxide fuel cell(SOFC),hot-water storage tank.HWST)and absorption refrigeration(ar)cycle is *** SOFC model was developed in Aspen Plus®.It was used to determine the thermodynamic properties of the exhaust gas that was then used to provide heat for the HWST and to drive the ar *** models for the ar cycles were developed in Engineering Equation Solver,considering LiBr-H2O and nH3-H2O as work.ng *** sensitivity analysis of a number of SOFC output parameters has been carried *** most optimal case was characterized with the coefficient of performance(COP)and CCHP efficiency of 0.806 and 85.2%for the LiBr-H2O system,and 0.649 and 83.6%for the nH3-H2O system,*** such optimal operating conditions,the SOFC was characterized by the net electrical efficiency of 57.5%and the net power output of 123.66 *** from the optimal solution were used to perform the thermodynamic study and sensitivity analysis to assess the influence of different absorption cycle operating conditions and to identify possible applications for the considered integrated systems.

关键词： solid-oxide fuel cell absorption refrigeration hot-water storage tank process integration tri-generation

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The Sytyk.nsk.ya k.mberlite pipe:Evidence from deep-seated xenoliths and xenocrysts for the evolution of the mantle beneath Alak.t,Yak.tia,russia

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Geoscience Frontiers 2015年第5期6卷 687-714页

作者： I.V.Ashchepk.v A.M.Logvinova L.F.reimers T.ntaflos Z.V.Spetsius n.V.Vladyk.n H.Downes D.S.Yudin A.V.Travin L.V.Mak.vchuk.V.S.Palessk.y O.S.k.mel'nik.va Institute of Geology and Mineralogy SB rAS Vienna University Alrosa Stock.Company Institute of Geochemistry SB rAS Birk.eck.College University of LondonUKMalet Street

Mantle xenoliths（>150） and concentrates from late autolithic breccia and porphyritic k.mberlite from the Sytyk.nsk.ya pipe of the Alak.t field（Yak.tia） were analyzed by EPMA and LAM ICP *** P-TX-f（O2） diagrams minerals from xenoliths show widest variations,the trends P-Fe#-CaO,f（O2）for minerals from porphyric k.mberlites are more stepped than for xenocrysts from *** PTX points mark.moving for protok.mberlites from the lithosphere base（7.5 GPa） to pyroxenite lens（5-3.5 GPa） accompanied by Cr increase by AFC and creation of two trends P-Fe#OI10-12%and13-15%.The Opx-Gar-based mantle geotherm in Alak.t field is close to 35 mW/m2 at 65 GPa and 600 C near Moho was *** oxidation state for the megacrystalline ilmenites is lower for the metasomatic associations due to reduction of protok.mberlites on peridotites than for uncontaminated varieties at the lithosphere *** inclined linear rEE patterns with deep HFSE troughs for the parental melts of clinopyroxene and garnet xenocrysts from breccia were influenced by differentiated *** for metasomatic xenoliths reveal less inclined slopes without deep troughs in spider *** reveal S-shaped rEE *** clinopyroxenes from graphite bearing Cr-websterites show inclined and inflected in Gd spectrums with LrEE variations due to AFC *** for garnets display less inclined patterns and Ba-Sr troughs but enrichment in ***40ar/39ar ages for micas from the Alak.t mantle xenoliths for disseminated phlogopites reveal Proterozoic（1154 Ma） age of metasomatism in early rodinia *** glimmerites with richterite- lik. amphiboles mark.015 Ma plume event in rodinia ***600-550 Ma stage manifests final rodinia *** last 385 Ma metasomatism is protok.mberlite-related.

关键词： k.mberlites Mantle lithosphere Mantle xenoliths Th

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