pressure drop of dry packed columns
fluid dynamics of packed columns principles of the fluid dynamic design of columns for gasliquid and liquidliquid systems
Ngày tải lên :
02/04/2014, 14:41
... number of overall transfer units pressure vapour pressure of pure component, Eq (1-1) pressure drop of irrigated packed bed pressure drop of dry packed bed pressure drop per m of irrigated packed ... bed pressure drop per m of dry packed bed specific pressure drop pressure drop quotient reflux ratio minimum reflux ratio wall thickness of packing element temperature effective falling velocity of ... Jerzy Ma´ kowiak c Fluid Dynamics of Packed Columns Jerzy Ma´ kowiak c Fluid Dynamics of Packed Columns Principles of the Fluid Dynamic Design of Columns for Gas/Liquid and Liquid/Liquid...
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Báo cáo nghiên cứu khoa học: "NUMERICAL MODEL OF SINGLE PHASE TURBULENT FLOWS FOR CALCULATION OF PRESSURE DROP ALONG GAS PIPELINES " doc
Ngày tải lên :
22/07/2014, 10:21
... molarities of mixture p1: input pressure, kPa p2: output pressure, kPa d: diameter of pipeline, m γ g : gas density, kg/m3 (6) (7) • T: temperature of fluid flow, K • Zav: averaged coefficient of compressibility ... 0.00783 0.00781 0.00785 Clinedinst Pressure, Coeff Of KPa Compressibi lity – Z 12000 11997 11984 10914 9648 8497 6137 5367 Trung bình Real Pressure at 112971m of the end of pipeline is 6970 kPa 0.7499 ... 0.01234 0.01233 0.01234 0.01233 0.01234 0.01235 Table 3.5 Summary of numerical results of oulet pressure p2 Results of outlet pressure and its differences with the real value Input data Input...
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An experimental study of pressure drop characteristics in vertical upward two phase and three phase flows
Ngày tải lên :
28/09/2015, 13:28
... of components of pressure drop w.r.t gas flow rate in slug flow regime 76 Fig 4.40 Variation of components of pressure drop w.r.t gas flow rate in churn flow regime 77 xii List of Symbols – relative ... root of ratio of pressure gradient of liquid to that of gas In their model ( ) is the pressure drop in the pipeline if gas alone is flowing through it and is the term, which is a function of non-dimensional ... break-up of droplets in turbulent flow to the case of dense dispersions and combining with criterion of minimization of the total system energy This model takes into consideration of free energy of...
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Pressure drop prediction of a gasifier bed with cylindrical biomass pellets
Ngày tải lên :
01/08/2016, 09:30
... model for prediction of pressure drop due to grate-bed resistance of a gasifier As the second step of that, with the objective of filling the gap on pressure drop prediction of gasifier beds with ... reduction of tar content is also positive However, the drawback of such large bed is large pressure drop of the system which ultimately affects the system performance Therefore, prediction of pressure ... pressure drop of a gasifier bed is a quite interesting topic for anyone concerning the system performance 3.2 Prediction of pressure drop 3.2.1 Developing the correlation Total pressure drop through...
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Sensory characterization of dry-cured ham using free-choice profiling
Ngày tải lên :
03/04/2013, 21:07
... lx) First of all, consumers were briefed on the concept of the methodology and the procedure The aim of this was to allow for development of the vocabulary to describe the four types of dry- cured ... 55.58% of the Table Demographic, socio-economic characteristics and frequency of dry- cured ham consumption of the participants (% of respondents, n = 109) Socio-demographic characteristic % of respondents ... ham) The model included the type of dry- cured ham (ageing time) and the taste session as fixed effects The interaction assessor  type of dry- cured ham was tested and dropped from the model since...
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LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-SHORT STORY BY O’HENRY- The Indian Summer Of Dry Valley
Ngày tải lên :
29/10/2013, 01:15
... widow with a pack of children that gave the husbandman frequent anxious misgivings In the woman there was a strain of the Spanish She had wedded one of the name of O'Brien Dry Valley was a connoisseur ... sudden end Of course Mrs O'Brien favoured the match as soon as Dry Valley's intentions were disclosed Being the mother of a woman child, and therefore a charter member of the Ancient Order of the ... strawberry patch To the outraged vision of Dry Valley there seemed to be a sheep corral full of them; perhaps they numbered five or six Between the rows of green plants they were stooped, hopping...
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Review of the Existing Techniques for the Determination of Dry Rubber Content in Natural potx
Ngày tải lên :
23/03/2014, 21:21
... in grams of rubber present in 100 g of latex" The Dry Rubber Content (ORC) of Hevea latex is a very familiar term to all in the rubber industry It is probably one of the few properties of latex ... average error of the measurement is about 4% of the value estimated by the standard procedure, which compares with the oven dry weight of a sample of rubber coagulated from 10g sample of latex The ... weight of representative sample of the latex with dilute acetic acid, sheet the coagulum and dry it at about 750C in an oven The DRC of the latex is therefore the percentage by weight of the dry...
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pressure sensor of autonics guides
Ngày tải lên :
10/04/2014, 20:11
... Nó ON, vượt St2 Mode ngõ độc lập trái ngược (F-4) OUT1: Nó OFF, vượt St1 OUT2: Nó OFF, vượt St2 Mode ngõ độc lập chéo (F-5) OUT1: Nó OFF, nhỏ St1 OUT2: Nó ON, nhỏ St2 Nó cài đặt giá trò giới hạn...
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atmospheric pressure fabrication of sno2 nanowires for
Ngày tải lên :
05/05/2014, 15:26
... Page of 40 Ac ce pt ed M an us cr i Figure Page of 40 Ac ce p te d M an us cr ip t Figure Page of 40 Ac ce p te d M an us cr ip t Fig Page of 40 Ac ce p te d M an us cr ip t Figure Page of 40 ... Fig shows the response of the SnO2-nanowire sensor at an operating temperature of 200°C response when exposed to CH4-gas pulses with concentrations of in dry air 66 ppm in dry air Response time ... Faculty of Chemistry, TU Vienna and is M head of the research group of Nano-Materials Main focus of work concerns nano-composites, tailoring d interfaces, growth and thermal transport phenomena of...
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scientific american - 2001 02 - are we almost tapped out safeguarding every drop of clean water
Ngày tải lên :
12/05/2014, 16:07
... of Health Lahn, a native of China, is a researcher of the Howard Hughes Medical Institute and professor in the department of human genetics at the University of Chicago Functional Coherence of ... water-related civil engineering projects—which often have price tags in the tens of billions of dollars A handful of countries are even taking steps to remove some of the most egregious and damaging dams ... the plants’ roots drop by drop, nearly eliminating waste The water travels at low pressure through a network of perforated plastic tubing installed on or below the surface of the soil, and it...
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báo cáo hóa học:" Development and validation of the Impact of Dry Eye on Everyday Life (IDEEL) questionnaire, a patient-reported outcomes (PRO) measure for the assessment of the burden of dry eye on patients" potx
Ngày tải lên :
20/06/2014, 15:20
... impact of dry eye on vision-related functioning and dry eye symptoms in terms of severity, it covers only some of these aspects and is therefore unlikely to describe the full impact and burden of dry ... specific to dry eye patients, and meets current FDA patient-reported outcomes guidelines The use of this questionnaire will provide assessment of the impact of dry eye on patient dry eye-related ... Development and validation of the Impact of Dry Eye on Everyday Life (IDEEL) questionnaire, a patient-reported outcomes (PRO) measure for the assessment of the burden of dry eye on patients Linda...
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Báo cáo hóa học: " Negative pressure characteristics of an evaporating meniscus at nanoscale" pptx
Ngày tải lên :
21/06/2014, 06:20
... The walls are made of three layers of platinum (Pt) atoms arranged in fcc (111) structure The space above the meniscus is occupied by argon vapor The domain consists of a total of 14,172 argon atoms ... disjoining pressure variation along the width of the meniscus at three different time steps for Case I and Case II, respectively Disjoining pressure increases significantly upon the formation of Maroo ... http://www.nanoscalereslett.com/content/6/1/72 Page of Figure X-Z plane of simulation domain at different time intervals for Case I and Case II Evaporation of the liquid meniscus is seen, with the formation of the non-evaporating...
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Báo cáo hóa học: "Fabrication of Densely Packed AlN Nanowires by a Chemical Conversion of Al2O3 Nanowires Based on Porous Anodic Alumina Film" potx
Ngày tải lên :
21/06/2014, 20:20
... supplement of the additional evaporated aluminum, and thus gives a larger diameter of the AlN nanowires than that of the Al2O3 ones Summary and Conclusions Fig FE-SEM image of close -packed AlN ... composed of gel-like alumina The chemical etching of porous alumina film can relax colloidal alumina wires, and thus produce the densely packed nanowires [21] Figure shows a typical FE-SEM image of ... card of No 25-1133) but a small quantity of a-Al2O3 phase This indicates that most of the alumina nanowires have been converted into the AlN nanowires during heat treatment Fig FE-SEM images of...
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THE HISTORY OF DRY FARMING pdf
Ngày tải lên :
29/06/2014, 15:20
... advancement of dry- farming and has placed the departmental investigations of dry- farming in point of time behind the pioneer investigations of the subject The Dry- farming Congress As the great dry- farm ... systematic presentation of the principles of dry- farming A year later the Legislature of the state of Utah made provision for the establishment and maintenance of six experimental dry- farms to investigate ... appointment, in 1905, of Chilcott as expert in charge of dry- land investigations At the present time an office of dry- land investigations has been established under the Bureau of Plant Industry,...
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THE COMPOSITION OF DRY-FARM CROPS ppsx
Ngày tải lên :
29/06/2014, 15:20
... protein content of the wheat of the United States is a little more than 12 per cent; Stewart and Greaves found an average of 16.76 per cent of protein in Utah dry- farm wheats of the common bread ... the fact that dry- farm products are unusually rich in the most valuable nutritive materials is of tremendous importance to the development of dry- farming The small average yields of dry- farm crops ... the proportion of seed to straw high, and the proportion of meat or nutritive materials in the plant parts likewise high The water in dry- farm crops One of the constant constituents of all plants...
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Báo cáo toán học: "On the Counting of Fully Packed Loop Configurations: Some new conjectures" ppt
Ngày tải lên :
07/08/2014, 08:20
... inverse hook |Y length of the diagram, i.e the inverse product of the hook lengths of all its boxes Finally, we denote by F (Y ) the set of diagrams obtained by adjonction of one box to Y according ... Relating FPL configurations of size n with inclusive configurations of size n − of size n − 1, one finds relations between other configuration numbers of size n and inclusive sums of size n − Conjecture ... math.CO/0311220 [19] F Caselli and C Krattenthaler, Proof of two conjectures of Zuber on Fully Packed Loop configurations, math.CO/0312217 the electronic journal of combinatorics 11 (2004), #R13 14 Appendix...
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Báo cáo toán học: " ON THE NUMBER OF FULLY PACKED LOOP CONFIGURATIONS WITH A FIXED" pot
Ngày tải lên :
07/08/2014, 08:22
... the place of a notch, and the number of notches out of {f1 , f2 , , fd−1 } must be exactly by larger than the number of notches out of {e1 , e2 , , ed−2 } An example of a choice of notches ... corollary of the above theorem Proof of Conjecture 1.1 for m ≥ 3d The polynomiality in m of AX (m) is obvious from (4.1) and (2.2) The assertion about the integrality of the coefficients of the “numerator” ... number of rhombus tilings, see the proof of Lemma 6.4 In both cases, the polynomial nature of the number of rhombus tilings is immediately obvious, if m is “large enough.” To cover the case of “small”...
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Báo cáo lâm nghiệp: "Above- and belowground distribution of dry matter and carbon biomass of Atlantic beech (Fagus sylvatica L.) in a time sequence" doc
Ngày tải lên :
08/08/2014, 01:22
... ground, would consist of 32 t/ha (16 t/ha of carbon) of wood with diameters less than cm, and 75 t/ha (36 t/ha of carbon) of wood between and cm diameter; (2) quantities of to cm fire wood exported ... t/ha, i.e 57 t/ha of carbon, and 629 t/ha of industrial wood greater than cm, i.e 298 t/ha of carbon; (3) the quantity of roots left in the soil would be 134 t/ha, i.e.65 t/ha of carbon Our study ... 145-years-old The simulation of the changes in the processes of immobilisation of standing dry matter demonstrated a plateau between the 50- and the 80-year-old stages and the shape of the production table...
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Báo cáo lâm nghiệp: "Allocation of dry matter in Eucalyptus in response to nitrogen supply grandis seedling" ppsx
Ngày tải lên :
09/08/2014, 04:20
... growth and allocation of dry matter by analysis of shoot/root ratio (mass of top/mass of root) but use of this ratio has frequently led to incorrect interpretations because of failure to recognise ... (Ledig et al., 1970) Comparison of shoot/root ratio of plants of different sizes is therefore open to serious criticism Comparison of regression coefficients of the allometric formula has been ... differences in mass of these organs would increase with constant ontogeny [N] had a strong influence on the ratio of 1!1/! to W which was stable across a wide range of plant sizes Slopes of allometric...
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Báo cáo y học: "Acute pressure overload of the right ventricle. Comparison of two models of right-left shunt. Pulmonary artery to left atrium and right atrium to left atrium: experimental study" doc
Ngày tải lên :
10/08/2014, 09:22
... difference of mean blood pressure variable at 20 interval (p = 0,054) with the mean blood pressure of PA - LA shunt at the level of 49.87 ± 10.08 mmHg and of RA - LA shunt at the level of 58.60 ... pig Results Hemodynamics The central venous pressure (mean), the mean pressure of left atrium, the cardiac output, the pressure of the distal portion of pulmonary artery at baseline and during ... procedure because of the dysfunction of the right ventricle of the graft [9] Dysfunction of the right ventricle (RV) can occur in a number of clinical scenarios, including pressure overload,...
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