TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr最新文献

{"title":"Mass stopping power of alpha particles in liquid water and some gases","authors":"B. M. Saied, Taghreed A. Younis, Adeel Kamel Shbeeb","doi":"10.1063/1.5138527","DOIUrl":"https://doi.org/10.1063/1.5138527","url":null,"abstract":"The interaction of charged particles with the chemical elements involved in the synthesis of human tissues is one of the modern techniques in radiation therapy. One of these charged particles are alpha particles, where recent studies have confirmed their ability to generate radiation in a highly toxic localized manner because of its high ionization and short its range. In this work, We focused our study on the interaction of alpha particles with liquid water; since the water represents over 80% of the most-soft tissues, as well as, hydrogen, oxygen, and nitrogen, because they are key chemical elements involved in the synthesis of most human tissues. The mass stopping powers of alpha particle with H2O, CO2, O2, H2 and N2have been calculated in energy range (0.001-1000) MeV, using four methods (Beth-Bloch equation, Zeigler formula and SRIM2013 software, ASTAR program).We have produced semi-empirical formulas for calculating the mass stopping power of alpha particles, for such targets by knowing alpha particle energy. Comparing our results of the calculated mass stopping power with ICRU-Report 49 we find very good agreement between them, this confirms the ability of our result to be used in such cancer treatment and other fields where this quantity is used.","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128813083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Doping effect of magnesium oxide (MgO) on the enhancement of the thermal storage properties of sodium nitrate (NaNO3)","authors":"Reda Boualou, H. Agalit, A. Samaouali, A. Youssfi, K. E. Alami","doi":"10.1063/1.5138555","DOIUrl":"https://doi.org/10.1063/1.5138555","url":null,"abstract":"In this work, sodium nitrate (NaNO3) is used as the basic continuous PCM, and magnesium oxide (MgO) is dispersed inside it to enhance its global thermal storage properties, especially its thermal conductivity. The composite (NaNO3/MgO) was prepared by mixing sodium nitrate with the addition of 1 wt.%, 2 wt.%, and 3 wt.% of MgO. Furthermore, differential scanning calorimetry (DSC) is used to evaluate the main thermal properties of the obtained composite materials, namely: their latent heat, specific heat and sub-cooling temperature. Their thermal conductivity is estimated based on a validated theoretical model from the literature. Finally, the chemical structures of the pure PCM and the three composites are investigated using Fourier transform infrared spectroscopy (FT-IR). Overall, the experimental and numerical results have indicated a clear enhancement of the thermal storage properties (especially the thermal conductivity and the sub-cooling temperature) of NaNO3 when it is doped with MgO: The thermal conductivity of the pure PCM was enhanced by 5 % and 19%, when it is doped by 3 wt.% and 10 wt.% respectively. While, the sub-cooling degree was decreased up to 46% when it is doped by 3wt.%, which is very good for the thermal cycling of this PCM inside the LTES system. As far as it concerns the other properties, they remained almost stable: the measured value of melting temperature has an average of 306,85 °C, with a heat of fusion of 172,40 J/g.In this work, sodium nitrate (NaNO3) is used as the basic continuous PCM, and magnesium oxide (MgO) is dispersed inside it to enhance its global thermal storage properties, especially its thermal conductivity. The composite (NaNO3/MgO) was prepared by mixing sodium nitrate with the addition of 1 wt.%, 2 wt.%, and 3 wt.% of MgO. Furthermore, differential scanning calorimetry (DSC) is used to evaluate the main thermal properties of the obtained composite materials, namely: their latent heat, specific heat and sub-cooling temperature. Their thermal conductivity is estimated based on a validated theoretical model from the literature. Finally, the chemical structures of the pure PCM and the three composites are investigated using Fourier transform infrared spectroscopy (FT-IR). Overall, the experimental and numerical results have indicated a clear enhancement of the thermal storage properties (especially the thermal conductivity and the sub-cooling temperature) of NaNO3 when it is doped with MgO: The thermal c...","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130820953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of polypyrrole nanoparticles synthesized in presence and absence of surfactant for heavy metals decontamination","authors":"S. Zayan, A. El‐Shazly, M. El-Kady","doi":"10.1063/1.5138511","DOIUrl":"https://doi.org/10.1063/1.5138511","url":null,"abstract":"Polypyrrole black powder nanoparticles (PPy NPs) have been synthesized by chemical oxidative polymerization in the absence and presence of surfactant and tested as an adsorbent for manganese ions sequestration from aqueous solution. PPy NPs were chemically prepared by chemical oxidation using ferric chloride (FeCl3) as an oxidant, distillate water as a solvent, and polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) as surfactants. PPy NPs were found to be mesoporous with surfaces area of approximately 8 m2/g, 22 m2/g, and 32 m2/g, and average pore size 51 nm, 33 nm, and 29 nm for PPy, PPy/PVP, and PPy/PVA respectively. The prepared PPy adsorbents were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared spectroscopy (FTIR), and Atomic Absorption Spectrometer (AAS) which was used to measure the manganese concentration. The batch adsorption process was conducted by varying agitation time at constant pH. Data from the AAS analysis showed that manganese ions removal from water effluent was almost 78%, 86%, and 95% after 2 hours for PPy, PPy/PVP, and PPy/PVA respectively. The results demonstrated that PPy prepared in the presence of PVA is a super-adsorbent for manganese decontamination from wastewater and can be a potential material in this field.","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116935711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical study of a latent heat storage system adapted to concentrated solar power (CSP) plants at medium temperatures","authors":"A. Youssfi, M. Asbik, H. Agalit, K. E. Alami, Reda Boualou","doi":"10.1063/1.5138552","DOIUrl":"https://doi.org/10.1063/1.5138552","url":null,"abstract":"Latent Heat Storage (LHS) is a promising solution to overcome the intermittent nature of solar energy for concentrated solar power (CSP) plants. In fact, it matches at a relatively low cost between the electricity produced by these plants and the periods of demand. Moreover, LHS systems have higher energy density compared to Sensible Heat Storage (SHS) ones. However, their inorganic materials have low thermal conductivity, which reduces the dynamics of the storage system with respect to the limitation of operating conditions of a CSP plant. One of the effective ways to resolve this problem is the use of extending surfaces such as fins. The present work evaluates the viability of this LHS applied to the case study of a heat exchanger with and without fins. A Computational fluid dynamics (CFO) model of the studied system was built in the COMSOL-Multyphysics environment. Furthermore, it was succefully validated against the available experimental results. Overall, the obtained simulation results show a considerable enhancement of the global dynamic performances of the LHS: the charging period and the phase change duration were decreased by 30.5% and 44.64% respectively.Latent Heat Storage (LHS) is a promising solution to overcome the intermittent nature of solar energy for concentrated solar power (CSP) plants. In fact, it matches at a relatively low cost between the electricity produced by these plants and the periods of demand. Moreover, LHS systems have higher energy density compared to Sensible Heat Storage (SHS) ones. However, their inorganic materials have low thermal conductivity, which reduces the dynamics of the storage system with respect to the limitation of operating conditions of a CSP plant. One of the effective ways to resolve this problem is the use of extending surfaces such as fins. The present work evaluates the viability of this LHS applied to the case study of a heat exchanger with and without fins. A Computational fluid dynamics (CFO) model of the studied system was built in the COMSOL-Multyphysics environment. Furthermore, it was succefully validated against the available experimental results. Overall, the obtained simulation results show a consid...","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129441908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improve studies and calculations for the Bose-Einstein condensation D-D fusion reaction rate","authors":"A. Hussein, R. H. Majeed, Hadi J. M. Al-Agealy","doi":"10.1063/1.5138569","DOIUrl":"https://doi.org/10.1063/1.5138569","url":null,"abstract":"A theoretical study including the effects of the fusion characteristics parameters on the fundamental fusion rate for the BEC state in D-D fusion reaction is deal with varieties physical parameters such as the fuels density, fuel temperature and the astrophysics S-factor are processed to bring an approximately a comparable results to agree with the others previously studies.A theoretical study including the effects of the fusion characteristics parameters on the fundamental fusion rate for the BEC state in D-D fusion reaction is deal with varieties physical parameters such as the fuels density, fuel temperature and the astrophysics S-factor are processed to bring an approximately a comparable results to agree with the others previously studies.","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133183893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of biodiesel from the locally isolated yellow strain of Chlorella sp. using dairy wastewater as a growth medium","authors":"Djillali Ghobrini, T. Brányik, S. Yakoub-Bougdal, Kamal Aiboud, Leila Kebbab, D. Daoud, N. Lahouel, R. Bouarab, Mohammed Oumsalem, L. Zanoun","doi":"10.1063/1.5138583","DOIUrl":"https://doi.org/10.1063/1.5138583","url":null,"abstract":"","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133622690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sanitary assessment of an agricultural greenhouse equipped with thermal storage system in the Ghardaïa Region","authors":"H. Bensaha, A. Benseddik, D. Lalmi, Sofiane Kherrour","doi":"10.1063/1.5138582","DOIUrl":"https://doi.org/10.1063/1.5138582","url":null,"abstract":"","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"14 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123686912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Technological characteristics of perovskite solar cell windows using CdS – wurtzoid structure","authors":"Fatin H. Mousa, Alizade Mahdi, B. B. Kadhim, Ali M. Ali","doi":"10.1063/1.5138518","DOIUrl":"https://doi.org/10.1063/1.5138518","url":null,"abstract":"","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128105831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative evaluation of a fuzzy logic controller for speed control of DC motor applying different optimization techniques","authors":"S. Petratos, G. Ioannidis, S. D. Kaminaris, G. Vokas","doi":"10.1063/1.5138544","DOIUrl":"https://doi.org/10.1063/1.5138544","url":null,"abstract":"","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129906708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, morphology, and magnetic properties of Ni0.35-x Mg0.15 Agx Fe2.5O4 nano-ferrite","authors":"H. Mustafa, Tagreed M Al-Saadi","doi":"10.1063/1.5138525","DOIUrl":"https://doi.org/10.1063/1.5138525","url":null,"abstract":"","PeriodicalId":186251,"journal":{"name":"TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19Gr","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114243146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}