4—effect of operating conditions
Biomass fueling of a SOFC by integrated gasifier: Study of the effect of operating conditions on system performance
... capability of the gasifier to work with minimum air request has to be sought, along with the control of SOFC operating voltage Among the cases reported in Fig 5, optimal operating conditions in terms of ... availability of integration heat, a high amount of air (O2 flow rate in the Figure) is required to let the SOFC operate at the selected operating voltage This also leads to a poor exploitation of the SOFC ... exploitation of the SOFC off-gas that is evident by the analysis of Fig 6, where dHint is reported as a function of SOFC H2 utilization and MC dHint represents the amount of the offgases enthalpy that...
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Biomass gasification in a downdraft gasifier with a twostage air supply: Effect of operating conditions on gas quality
... rate of 20 Æ 0.45 Nm3/h and an AR of 80% a fuel gas with a CO content of 19.2 Æ 0.36% v, CO2 of 14.22 Æ 0.19%v H2 of 17, 14 Æ 0.13%v, CH4 of 1.3 Æ 0.07% v, tar of 54.25 Æ 0.66 mg/Nm3, particles of ... in tar yield and of 29.9% in the particle content of the gas The producer gas for this operational condition had a composition of 19,2vol% of CO, 1.3vol% of CH4, 17.14 vol% of H2, 14.22 vol% ... on time of the temperature profile of the gasifier for AR of 0% and total airflow of 20 Nm3/h 240 b i o m a s s a n d b i o e n e r g y ( ) e2 4 easy to understand the difficulties of data replication...
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Catalytic Steam Gasification of Biomass Surrogates: Thermodynamics and Effect of Operating Conditions
... Steam Gasification of Biomass Surrogates: Thermodynamics and Effect of Operating Conditions Jahirul Mazumder and Hugo I de Lasa* Chemical Reactor Engineering Centre, Department of Chemical and Biochemical ... Figure 9: Profiles of (a) dry gas yield, (b) carbon conversion, (c) tar yield (wt% of biomass) and (d) coke yield (% of carbon injected); with the temperature from steam gasification of 2-methoxy-4-methylphenol ... expected conditions of a circulating fluidized bed gasifier A highly active and stable fluidizable Ni/La2O3-γ-Al2O3 catalyst is employed in this study, to investigate the effects of gasifier operating...
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A CFD analysis on the effect of ambient conditions on the hygro-thermal stresses distribution in a planar ambient airbreathing PEM fuel cell
... effects of passive fuel cells are balanced by the transfer of heat and water to the ambient Optimal performance of air-breathing cells is therefore a complex function of ambient and load conditions ... lead to cathode flooding, which limits the access of oxygen to the active surface of the catalyst particles Under certain ambient and operating conditions, such as low humidity, high temperatures, ... introduced to improve long-term performance An operating air-breathing PEM fuel cell has varying local conditions of temperature and humidity As a result of in the changes in temperature and moisture,...
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ẢNH HƯỞNG CỦA ĐỘ KIỀM LÊN QUÁ TRÌNH TĂNG TRƯỞNG CỦA TÔM THẺ CHÂN TRẮNG (Penaeus vannamei) ĐƯỢC NUÔI Ở ĐỘ MẶN THẤP (4‰) EFFECT OF ALKALINITY ON GROWTH PERFORMANCE OF WHITE LEG SHRIMP (Peneaus vannamei) CULTURED IN LOW SALINITY AREA (4‰)
... and Agriculture Organization of the United Nations, Regional Office for Asia and the Pacific RAP Publication 2004/10, pp 1-12 Christopher Edward Mace, 2008 Evaluation Of Ground Water From The Lajas ... And Diseases Of Cultured Penaeus vannamei The World Aquaculture Siciety The Oceanic Institute Briggs, M., S Funge-Smith, R Subasinghe and Phillips, M 2004 Introduction and movement of Penaeus vannamei ... Garada J and Mishra J.K., 2002 Growth And Survival Of The White Leg Shrimp (Litopenaeus Vannamei) Reared Intensively In The Brackish Water Of The Israeli Negev Desert The Bengis Centre for Desert...
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The effect of annealing conditions on the red photoluminescence of nanocrystalline Si/SiO films
... of hydrogen that have been suggested are: (1) the passivation of dangling bonds w25–27x; (2) as one of the components of the luminescence centers w11,29x; and (3) responsible for the change of ... concentrations of PL centers and of nonradiative recombination centers This leads to the much strong enhancement of PL in the case of FG annealing (Fig 8b) At an annealing temperature of 400 8C, ... here the effects of annealing conditions on the PL approximately 1.75 eV (in the third stage) 177 Fig The peak energy as a function of FG annealing times at annealing temperatures of (a) 200, 300...
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Effect of cultural conditions on production of cellulases in trichoderma longibrachiatum
... Act ion of cellulas e fr om fungus of marine ori gin in rice straw In dian Journal of Mic robiology 17, 194- 197· D 'S OUZA, J & VOLFOVA, O (1982) The effect of pH on the production of cellu ... 99'0 % of CM-ase in T koningii Oudem is extracellular whereas 90 % of fJglucosidase is associated with cells The active release of CM-ase and FP activity into the medium in early stages of cultivation ... concentrations This may be due to release of high levels of glucose in the culture broth which is a known repressor of cellulase Increasing the concentration of lactose above % did not bring about...
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Báo cáo khoa học: "Effect of storage conditions on germination in Touki seeds (A. acutiloba Kitagawa) on the different umbel orders" pptx
... days) starting from day ( the day of sowing); ni is the number of seeds that completed germination on day t; and nj is the number of seeds with complete emergence of the seedlings on day t The Tukey ... germinate (Ojala, 1985) Seeds of Angelica glauca required In room conditions, the germination percentage of seed decreased slightly at one DISCUSSION Some seeds of Angelica species require pretreatments ... Fig.1 Effects of time after harvesting on germination percentage in Touki seeds (Angelica acutiloba Kitagawa) SE = error bar P: Primary; S: Secondary; T: Tertiary 84 Effect of storage conditions...
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Báo cáo lâm nghiệp: "Can 13C stable isotope record of Norway spruce tree rings display the effect of environmental conditions" pot
... saturation of soils, have remained exposed to the effect of soil acidification after the decline of atmospheric deposition, which can result in the growth depression of trees Growth depression of Norway ... rings provides a long term record of the effect of environmental conditions Needle analyses might provide information only about the effect of environmental conditions in the current year (Solberg, ... end of the 19th century and at the beginning of the 20th century might be a reaction to the closure of pasturing and timber harvesting (Veselý 1994) in conjunction with the long-term effect of...
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Báo cáo lâm nghiệp: "Effect of storage conditions on post planting water status and performance of Pinus radiata D. Don stock-types" doc
... death of 40% of plants planted in wet soils (Fig 6C) and after 15 days at ºC or after days at 10 ºC only 20% of BR seedlings survived The percentage of BR plants that survived in drought conditions ... lowering of internal water status can cause severe injury to roots (Fig 4) The reduction of root water content as a consequence of desiccation of the root system [9] is accompanied by a decrease of ... rate of physiological recovery is dependent on the severity of drought [14] but also on the conditions and duration of preplanting storage; as the storage period is lengthened the rate of water...
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Effect of operating parameters on performance of an integrated biomass gasifier, solid oxide fuel cells and micro gas turbine system
... Recently, Campitelli et al [14] have invested the effect of operating conditions on BG-SOFC systems performance The influence of H2 utilization of SOFC and moisture content in biomass have been analyzed ... power of SOFC decreases due to the decreasing of molar ratio of H2 to H2O at the anode inlet as MC increasing which leads to the lower terminal voltage of SOFC The higher the molar fraction of H2O ... of dry biomass Gasifier Gasifier operating pressure Moisture content of biomass entering gasifier (State 2) Equivalence ratio Molar fraction of air SOFC SOFC operating temperature Anode inlet...
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Effect of operating parameters on performance of an intEffect of operating parameters on performance of an integrated biomass gasifier, solid oxide fuel cells and micro gas turbine system
... performed with the operating conditions , ER of 0.3, biomass feeding rate of 6kgh-1 ,throat temperature of 720°C (avg), nickel loading of 15 wt % and gas residence time of 0.3s The results of tar cracking ... activity of Ni-Co/Si-P SNPs is relatively higher than that of Ni-Co/Si-P micro-crystals due to the presence of mesopores Page of 19 3.4 Thermal analysis of Ni-Co/Si-P SNPs The result of Thermo ... the adsorption of tar compounds on the surface of the catalyst Porosity of the catalyst is also one of the beneficial criteria for the catalytic cracking of tar The mesopores volume of Ni-Co/Si-P...
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Characterisation of Residual Char From Biomass Gasification: Effect of the Gasifier Operating Conditions
... work, a study of the effect of the main gasification operating conditions (relative 134 biomass/air ratio, temperature, air/steam content of the gasifying agent) on the 135 properties of the resulting ... characterisation of this biomass fuel is shown in Table M AN U SC RI PT 154 165 166 Table Characterisation of dealcoholised marc of grape TE D 167 The experimental schedule for the study of the effect of the ... increase of the intensity of the bands 309 located around 1500 cm-1 (corresponding to vibrations of aromatic C=C rings) and 1200 310 cm-1 (associated to CO of O-CH3 and C-OH groups) when operating...
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Sensibility study of flooding and drying issues to the operating conditions in PEM fuel cells
... influences of the operating conditions on the internal cell humidification as well as on the cell performances In this way, the threshold current density corresponding to the onset of two-phase operating ... result, the effects of operating conditions on liquid water appearance in the cell and on the related cell performances are discussed and analyzed in detail These operating conditions include ... computed for different operating conditions This threshold current density will be called the critical current density, and denoted by i_cr For any operating conditions, if the operating current is...
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Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
... the current was turned off for a fixed duration toff of 0.5 s During ton, FePt nanoparticles were deposited on the surface of the electrode When the current was switched off, an ultrasound was ... has the potential benefit of combining sonochemistry with electrochemistry Some of these beneficial effects include acceleration of mass transport, cleaning and degassing of the electrode surface, ... magnetization of the unannealed particles was about few emu/g and the coercivity was 20 – 80 Oe The low value of Ms of the as-prepared nanoparticles may be explained by the oxidation or hydroxidation of...
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Báo cáo khoa học: Dual effect of echinomycin on hypoxia-inducible factor-1 activity under normoxic and hypoxic conditions docx
... different types of cancer [7] The identification of HIF-1 involvement in tumour progression and angiogenesis led to the concept of HIF-1 as a promising molecular target for the development of cancer ... overexpression induced by 16 h of incubation under hypoxic conditions Again, a slight increase in HIF-1 activity was observed in the presence of nm echinomycin under normoxic conditions, as measured ... concentration (nM) Absorbance A Dual effect of echinomycin on HIF-1 activity *** N Conditions N + E 5nM H H + E 5nM Conditions H+ EA320nM Fig Effect of echinomycin on HIF-1 activity HepG2 and...
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Báo cáo khoa học: Effect of heliquinomycin on the activity of human minichromosome maintenance 4/6/7 helicase pdf
... primer of approximately 10 nucleotides was synthesized only in the presence of the above complex The synthesis of the RNA primer was inhibited in the presence of heliquinomycin at an IC50 value of ... Effect of heliquinomycin on the RNA priming activity of the DNA polymerase-a/primase complex (A) Top: effect of increasing concentrations of heliquinomycin (HQ) on the RNA priming action of the ... dominant in the presence of 14 lm of heliquinomycin, and larger complexes were detected in the presence of 43 lm of heliquinomycin Thus, it appears that higher concentrations of heliquinomycin affect...
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Báo cáo khoa học: Effect of the -Gly-3(S)-hydroxyprolyl-4(R)-hydroxyprolyltripeptide unit on the stability of collagen model peptides ppt
... others Nevertheless, all of the spectra are characteristic of collagen triple helices Refolding of peptide H-(Pro-4(R)Hyp-Gly)10-OH is two orders of magnitude faster than that of peptide H-(Pro-Pro-Gly)10-OH ... heat capacity of the peptides as a function of temperature Replacement of Pro by 3(S)Hyp decreases the transition enthalpy The first replacement of Pro by 3(S)Hyp in the middle of the triple helix ... scanning rate of 0.5 °CÆmin)1 between the amide group of Gly and the carbonyl group of 3(S)Hyp might be weaker than the hydrogen bond between the amide group of Gly and the carbonyl group of Pro They...
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Chapter 4 characteristics of field effect transistors
... 4-2(b) to yield I DQ and VGSQ , two of the necessary three quiescent variables Application of KVL around the drain-source loop of Fig.4-3(b) leads to the equation of the dc load line, iD So: VDD ... a constant value of vGS , JFET acts as a linear resistive device (in the ohmic region) until the depletion region of the reverse-biased gatesource junction extends the width of the channel (a ... Transistor CHAPTER 4: CHARACTERISTICS OF FIELD-EFFECT TRANSISTOR 4.1 INTRODUCTION The operation of the field-effect transistor (FET) can be explained in terms of only majority-carrier (one-polarity)...
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Báo cáo hóa học: " The Effect of Single, Binary and Ternary Anions of Chloride, Carbonate and Phosphate on the Release of 2,4-Dichlorophenoxyacetate Intercalated into the Zn–Al-layered Double Hydroxide Nanohybrid" pot
... manner Further understanding of the role of controlled release behavior of 2,4-D on the latex output from the rubber tree could lead to the application of 2,4-D in the form of slow release formulation ... molar ratio of Figure shows the FTIR spectra of ZAN, ZANDI and 2,4-D The insertion of 2,4-D into the interlayer of ZAN was confirmed by the FTIR spectrum, which is complementary to that of PXRD results ... release of organic moieties from the interlayer of LDH could be controlled by either the dissolution of LDH [9, 39] or diffusion through LDH [40] Kinetic study of the release behavior of 2,4-D...
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