investigation of coal suitability for fluidized bed combustion
industrial ecology approach to management of fly ash from fluidized bed combustion production of slow-release fertilizer and soil conditioner
... 2.2.2 Fluidized Bed Combustion Wastes 11 2.2.3 Types of Coal Combustion Products .18 2.3 Agricultural Use of Coal Combustion By-Products 19 2.4 Environmental Effects of ... Characteristics of Coal Combustion By-Products, Agricultural use of Coal Combustion By-Products, Environmental Effects of Coal Combustion By-Products, Ion Movement with the Amendment of Soils, Powder ... 2.2.2 Fluidized Bed Combustion Wastes Fluidized bed combustion (FBC) is a process in which the pulverized coal is mixed with finely ground limestone (CaCO3) and the mixture is combusted in a fluidized...
Ngày tải lên: 13/11/2014, 09:49
proceedings of the 20th international conference on fluidized bed combustion
... Fluidized Bed Combustion CHARACTERISTICS OF PYROLYTIC TOPPING IN FLUIDIZED BED FOR DIFFERENT VOLATILE COALS R Xiong, L Dong, G W Xu 404 FLUIDISED BED COMBUSTION OF TWO SPECIES OF ... presence of flue gas for the combustion of salix [15] 31 POTENTIALS OF BIOMASS CO -COMBUSTION IN COAL- FIRED BOILERS When biomass is combusted in fluidized beds of quartz sand particles sintering of ... the coal particle size plays an important role in the axial profile of the amount of heat release in the CFB For large coal particles, combustion mainly happens in the dense bed; for small coal...
Ngày tải lên: 02/04/2014, 15:01
ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - FLUIDIZED BED COMBUSTION pps
... FLUIDIZED BED COMBUSTION maintaining the transport (entrainment) of the bed material throughout the length of the combustor The density of the bed naturally varies with ... disadvantages 10 11 CHARACTERIZATION OF SOLID WASTES FROM FLUIDIZED BEDS The characterization and use of fluidized -bed- combustion coal/ limestone ash is discussed in the articles of BehrAndres and Hutzler23 ... would be different for each sorbent Another explanation involves the effect of fluidized bed gas circulation on bed chemistry An emulsion phase and a gas bubble phase FLUIDIZED BED COMBUSTION exist...
Ngày tải lên: 10/08/2014, 20:20
Evaluation of different biomass gasification modeling approaches for fluidized bed gasifiers
... essential for any further development of any possible generic model This is one of the major novel contribution of this study to the field of biomass gasification modeling The investigation of further ... amount of air needed for full combustion [25]), temperature, load (as an index for the size and residence time of the gasifier) and the mass ratio of steam to the moisture and ash free mass of biomass ... 3.2 Evaluation of the original EM-based models To form a common basis for comparison of the different models, the same set of experimental data has been used for the evaluation of all models The...
Ngày tải lên: 01/08/2016, 09:32
fluidized bed combustion dekker mechanical engineering
... DURING COAL COMBUSTION IN FLUIDIZED BEDS 4.1 Characteristic features of combustion in fluidized beds 4.1.1 Combustion conditions in fluidized beds 4.1.2 Physical processes during coal particle combustion ... concept of devices for solid fuel combustion in fluidized bed Furnaces for production of hot gases or hot air Industrial boilers with bubbling fluidized bed combustion Bubbling fluidized bed combustion ... process in fluidized beds 4.5.3 Distribution and combustion of volatile matter in fluidized beds 4.5.4 Modelling of volatile matter distribution and combustion in fluidized beds 4.6 Char combustion...
Ngày tải lên: 02/04/2014, 14:57
báo cáo hóa học: " The investigation of frequency response for the magnetic nanoparticulate assembly induced by time-varied magnetic field" ppt
... more and more Page of above the period of external field (The relaxation time is constant while the period of field is the reciprocal of frequency) Then, the magnetic moments of cluster have greater ... of external field is low enough, the field will be incapable of inducing the assembly of magnetic Figure SEM images of DMSA-coated g-Fe2O3 nanoparticles after solvent drying In the presence of ... measurement Page of of field-treated sample with that of naturally dried sample (Figure S3 in Additional file 1) For the bare g-Fe O nanoparticles, the resonance line width of field-treated sample...
Ngày tải lên: 21/06/2014, 02:20
báo cáo khoa học: " Enhanced relapse prevention for bipolar disorder: a qualitative investigation of value perceived for service users and care coordinators" pdf
... qualitative investigation was nested within a cluster randomised control trial to assess the feasibility of training of CCs to offer ERP for BD [18] Ethical approval was obtained through the Central Office ... select participants for interviews to ensure a full range of views were represented All interviews were conducted within 12 months of the delivery of the intervention Out of 96, 21 SUs were selected ... discuss other issues of importance to SUs, such as accommodation or financial concerns: Formulating an action plan was useful not just for the SU but for CCs and other health professionals Care plans...
Ngày tải lên: 11/08/2014, 16:21
Investigation of si anode for LI ion batteries
... by MACE [42] Sputtered Si thin film formed the basis for our nanostructure fabrication, and therefore we performed a thorough investigation of the effect of sputtering parameters such as RF sputtering ... capacity of all the anodes investigated and rationale for the enhanced cycling performance of nanopillars The thesis will conclude with Chapter 7, which provides a summary of the performance of all ... Krishandan for helping me with the thankless and frustrating task of proof-reading my thesis The ever growing fountain of scientific knowledge has only been made possible by the ardent works of earlier...
Ngày tải lên: 08/09/2015, 18:24
investigation of effective media for in vitro propagation of stevia rebaudiana bertoni
... with 0.2mg/l NAA and 0.15mg/l BAP was the best formula for not only callusing with 92.6% of explants forming profuse calli but also shooting, 100% of nodal segment developed healthy shoots (1.15cm ... culture is thus an alternative way for rapid and mass production of stevia Objective This research, Investigation of effective media for in vitro propagation of Stevia rebaudiana Bertoni”, was ... Petri dishes for a repetition For each treatment, the ratio of explants forming callus was recorded 2.2.2 Experiment 2: Study on the effects of different media on the multiplication of shoot from...
Ngày tải lên: 06/10/2015, 13:04
Investigation of bayesian networks for classification problems involving binary data
... BN_time; fprintf('\nEND OF SIMULATION for Node %3.0f with %3.0f Training Examples for Run %3.0f\n', N, train_counter,run); end % End of Loop for one specific definition of parameters fclose(fid); ... 583 fprintf('\nEND OF SIMULATION for Node %3.0f with %3.0f Training Examples for Run %3.0f\n' , N, train_counter,run); 584 585 end % End of Loop for one specific definition of parameters 586 fclose(fid); ... BN_time; fprintf('\nEND OF SIMULATION for Node %3.0f with %3.0f Training Examples for Run %3.0f\n', N, train_counter,run); end % End of Loop for one specific definition of parameters fclose(fid);...
Ngày tải lên: 08/11/2015, 17:00
Báo cáo lâm nghiệp: "Findings from the application of coal combustion by-products (CCB) for forest reclamation on spoil banks of the North Bohemian Brown Coal Basin" pdf
... technology of incorporation of coal combustion by-products CCB into the soil profile, also by several ploughing operations, including subsequent treatment of soil by disking for the growing of a crop for ... each taxon used for the reforestation of the state of reclamation “A” and “B” Fig Tilia cordata Mill and Pinus nigra Arn in the treatment with the application of CCB Fig Deformations of the root ... of soil properties of Anthroposols and growth vitality of the forest tree species plants: the assessment of texture, chemical and other soil properties of Anthroposols was done on the basis of...
Ngày tải lên: 07/08/2014, 10:21
Parametric analysis of a circulating fluidized bed biomass gasifier for hydrogen production
... operating conditions for the CFB gasifier Methods 2.1 Model of a circulating fluidized bed (CFB) gasifier The fluidized bed reactor has been broadly utilized for coal and biomass combustion and gasification ... surfaces of ash particles, which make ash particles sticky Consequently, the fluidized bed system is changed to a fixed -bed system with the increase of bed temperature In this study, the fluidized bed ... approximately 0.8e1.2, which produces a gas composition of 60e62 vol.% of H2, 16e22 vol.% of CO, 17e21 vol.% of CO2, and 0.3e0.7 vol.% of CH4 The quality of the product gas is defined as its higher heating...
Ngày tải lên: 29/07/2016, 14:03
FischerTropsch liquid fuel production by cogasification of coal and biomass in a solar hybrid dual fluidized bed gasifier
... bubbling fluidized bed air separation unit combustion reactor coal to liquid coal and biomass to liquid dual fluidized bed fraction in blends fast fluidized bed Fischer-Tropsch liquid greenhouse gas ... especially for the SCBTL system via solar hybrid dual fluidized bed (SDFB) gasifier Therefore, the overall objective of this work is to assess the energetic and environmental performance of the SCBTL ... utilization factor of the downstream processes Therefore, the concept of solar hybrid dual fluidized bed (SDFB) gasifier is proposed It is suitable for biomass and low rank coal gasification and...
Ngày tải lên: 01/08/2016, 09:30
Modeling biomass char gasification kinetics for improving prediction of carbon conversion in a fluidized bed gasifier
... gasification; (iii) selection of a model to represent the effects of temperature, gas composition and carbon conversion in the form of a kinetics equation; (iv) development of a FBG model where the ... prediction for the conversion rate of four sets of TGA reactivity data from sawdust While this parallel reaction model can accurately predict the reactivity and conversion time of biomass char for CO2 ... temperature For a typical FBG biomass fuels the methane yield is in the range of 50–80 g/kg daf [19] Finally, the estimation method for s3 as a function of operating conditions prevents the use of the...
Ngày tải lên: 01/08/2016, 09:31
In situ catalytic conversion of tar using rice husk char/ash supported nickel–iron catalysts for biomass pyrolytic gasification combined with the mixing-simulation in fluidized-bed gasifier
... the inert bed material or solid catalyst, there is a distribution of fuel and char particles in the bed Therefore, the movement of solids in the vessel should be described by accounting for three ... scale, fixed -bed gasifiers On the other hand, the bed temperature is limited to avoid the bed agglomeration and the gasification efficiency of a fluidized bed (FB) may be limited if part of the fuel ... economical point of view Models can be helpful for design of gasifier, for prediction of operation behavior and emissions during normal conditions, startup, shutdown, changes of fuel and load...
Ngày tải lên: 02/08/2016, 09:35
Utilization of activated carbon for the removal of basic dyes in fixed-bed microcolumn
... Journal of Energy and Environment (IJEE), Volume 4, Issue 5, 2013, pp.815-824 823 Table Data of variable bed depth at a fixed flow rate in a fixed -bed column for the removal of MB onto PAC2 Bed Depth ... concentration profile and a more efficient performance were obtained in the case of smaller particle sizes All the curves show the classic “S” shape profile The enhancement of the column performance ... Comparing the performance of F400 with that of PAC2 at the same experimental conditions, it is recognised that F400 is more efficient for the removal of MB from aqueous solution using a fixed -bed adsorber...
Ngày tải lên: 05/09/2013, 16:11
Tài liệu Investigation of Organic Chemicals Potentially Responsible for Mortality and Intersex in Fish of the North Fork of the Shenandoah River, Virginia, during Spring of 2007 ppt
... location of the two sampling sites on the North Fork of the Shenandoah River, Virginia Investigation of Organic Chemicals Potentially Responsible for Mortality and Intersex in Fish of the North Fork ... Laboratory Friends of the North Fork of the Shenandoah River Prepared in cooperation with the Friends of the North Fork of the Shenandoah River Open-File Report 2008–1093 U.S Department of the Interior ... Holmes, J., 2008, Investigation of organic chemicals potentially responsible for mortality and intersex in fish of the North Fork of the Shenandoah River, Virginia, during spring of 2007: U.S Geological...
Ngày tải lên: 14/02/2014, 08:20
Guidelines for the Investigation of Contacts of Persons with Infectious Tuberculosis Recommendations from the National Tuberculosis Controllers Association and CDC pptx
... consistency of media messages • For efficiency, use of media message templates for contact investigations is recommended 46 MMWR Data Management and Evaluation of Contact Investigations • Collection of ... guidelines for the investigation, diagnostic evaluation, and medical treatment of TB contacts (4) Although investigation of contacts and treatment of infected contacts is an important component of the ... Act; the Freedom of Information Act of 1966; the Privacy Act of 1974, which restricts the use of Social Security numbers; the Privacy Protection Act of 1998; and the Privacy Rule of HIPAA, which...
Ngày tải lên: 06/03/2014, 04:20
Báo cáo khoa học: Enzymatic investigation of the Staphylococcus aureus type I signal peptidase SpsB – implications for the search for novel antibiotics ppt
... result of the enzyme SpsB and is not caused by background activity of LepB of E coli (which was used as the host for overproduction of SpsB) The importance of the transmembrane segment for optimum ... removed just before preparing the samples for loading on gel For stability of SpsB in the presence of inhibitor arylomycin A2, 18 lL of puried length SpsB (stock concentration of 31 lm) was incubated ... imidazole in the presence of 0.05% Triton X-100 For analysis of purity, lL of ã SDS PAGE loading buffer was added to 20 lL of different elution fractions and incubated at 37 C for 10 followed by loading...
Ngày tải lên: 07/03/2014, 01:20
Investigation of au and in as solvents for the growth of silicon nanowires on si(1 1 1)
... explain the formation of smaller droplets in the case of gold than in the case of indium on a bare silicon surface, i.e after desorption step for indium Without desorption step, indium forms smaller ... concentration of about 25 mol% For this concentration, Naidich et al [12] found a surface tension of about 1.0 J/m2 at 1500 1C No data could be found in the literature for the surface tension of indium–silicon ... oxide layer forms during insertion of the sample into the UHV chamber in spite of the preceding HF-dip There are hints in the literature [11] that deposition of gold onto a thin layer of SiO2 on...
Ngày tải lên: 16/03/2014, 15:17