liquid ring vacuum pump working principle pdf

... of vacuum pumps 124 2.5.1 Sliding vane vacuum pump 124 2.5.2 Multi cell vacuum pump 127 2.5.3 Liquid ring vacuum pump 129 2.5.4 Rotary plunger vacuum pump 131 2.5.5 Trochoidal vacuum pump 131 Contents 1 ... vacuum measuring systems are also called vacuum measuring tubes, vacuum measuring cells or vacuum measuring heads. Vacuum gauge; vacuum measuring device. A vacuum gauge is a pressure measuring instrument ... of liquid ring vacuum pumps and compressors 234 4 Vacuum and Compressor Plants with Liquid Ring Machines 239 4.1 Demands on pump systems in process engineering 239 4.2 Basic combinations of liquid...

Ngày tải lên: 02/04/2014, 15:36

... of Working Group members). Prior to the meeting, the experts were invited to submit short working papers and/or to recommend background reading material. These were distributed to the Working ... presented in Sections 4–5, below. 4. Methodologic issues: summary of Working Group discussions The Working Group, after considering WHO’s charge as presented in Section 2 (above), identified six ... pollutants may depend critically on the placing of the monitors during the measurements. In general, data from source-oriented monitoring does not provide reliable evidence for population exposure....

Ngày tải lên: 17/02/2014, 11:20

Ngày tải lên: 06/03/2014, 21:20

... Efficiency and Productivity Analysis (CEPA) Working Papers A Guide to DEAP Version 2.1: A Data Envelopment Analysis (Computer) Program Coelli T.J. No. 8/96 CEPA Working Papers Department of Econometrics University ... fixed-width fields. Hence if a slack value is larger than 10 8 it will not be reported and a string of stars (************) will appear instead. This can be avoided by scaling your data prior ... Theory, Methodology and Applications”, Kluwer. Charnes, A., W.W. Cooper and E. Rhodes (1978), “Measuring the Efficiency of Decision Making Units”, European Journal of Operations Research, 2, 429- 444. Charnes,...

Ngày tải lên: 22/03/2014, 22:20

... narrow rings. If rings for which w/R < 0.2 are used, then dis- persion becomes important for the modes of n > 4. Wide rings do not suffer the effects of dispersion as much as narrow rings. 2.3.4 ... 0.89 2 0.07 0.37 2 0.63 0.38 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com CHAPTER TWO Analysis and Modeling of Ring Resonators 5 Microwave Ring Circuits and Related Structures, ... the ring line width is constant. H k j AJ kr BN kr n nnf wm f=¢+¢ {} 0 ( ) ( ) sin( ) 10 ANALYSIS AND MODELING OF RING RESONATORS FIGURE 2.3 (a) Ring with asymmetrical feed lines, and (b) ring...

Ngày tải lên: 27/06/2014, 14:20

... System.Object class requires that you understand inheritance, which is described in Chapter 12, Working with Inheritance.” For the time being, simply accept that all classes are specialized types ... Circle(42); object o; o = c; The Purpose of Encapsulation Encapsulation is an important principle when defining classes. The idea is that a program that uses a class should not have to ... (they can be steered, stopped, accelerated, and so on) and common attributes (they have a steering wheel, an engine, and so on). People use the word car to mean objects that share these common...

Ngày tải lên: 01/07/2014, 09:20

... samples, 800–802 liquid samples, 764 liquid- liquid extraction (LLE), 764–771 counter-current distribution, 768 emulsions, 769 extraction efficiency, 766 flowchart, 765 immobilized liquid extraction (ILE), ... 112 High-pressure HPLC, 112; see also U-HPLC High-pressure liquid chromatography, 8 High-priced liquid chromatography; see U-HPLC High-speed liquid chromatography, 8 HILIC, see Hydrophilic interaction chromatography Homologs, ... elution, 437–438 HILIC, 395–396 INDEX 903 Multi-angle light-scattering detectors (MALS); see Detectors, light-scattering Multidimensional liquid chromatography, 616–618; see also Two-dimensional chromatography column...

Ngày tải lên: 04/07/2014, 01:20

... 101 3.4.2.3 Specialty Fittings, 103 3.5 Pumping Systems, 104 3.5.1 Reciprocating-Piston Pumps, 104 3.5.1.1 Dual-Piston Pumps, 108 3.5.1.2 Accumulator-Piston Pumps, 108 3.5.1.3 Active Check Valve, ... R. Introduction to modern liquid chromatography / Lloyd R. Snyder, Joseph J. Kirkland. – 3rd ed. / John W. Dolan. p. cm. Includes index. ISBN 978-0-470-16754-0 (cloth) 1. Liquid chromatography. ... 91 3.3 Mobile-Phase Degassing, 92 3.3.1 Degassing Requirements, 92 3.3.2 Helium Sparging, 94 3.3.3 Vacuum and In-line Degassing, 95 3.4 Tubing and Fittings, 96 3.4.1 Tubing, 96 3.4.1.1 Low-Pressure...

Ngày tải lên: 04/07/2014, 01:20

... Back, 821 17.4 Common Symptoms of HPLC Problems, 821 17.4.1 Leaks, 822 17.4.1.1 Pre -pump Leaks, 822 17.4.1.2 Pump Leaks, 823 17.4.1.3 High-Pressure Leaks, 825 17.4.1.4 Autosampler Leaks, 825 17.4.1.5 ... equal V D /F TFA trifluoroacetic acid t G gradient time (min); Figure 9.10 PREFACE H igh-performance liquid chromatography (HPLC) is today the premier technique for chemical analysis and related applications, ... faster, trouble-free operation. Prior to 1990, HPLC method development was an uncertain process—often requiring several months for the acceptable separation of a sample. xxxi xxviii CONTENTS 17.3.5 Module...

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 16/12/2012, 15:24

... significantly affected by vacuum mixing. Vacuum mixing at –55 kPa and –90 kPa resulted in a significant increase in b* values (Table III). Variables of water addition and vacuum mixing change dough ... also obvious to the observer (Fig. 7). Introducing vacuum mixing to dough increased translucency from 34.78 to 40.01% for boiled noodles. When vacuum changed TABLE I Relationship Between Gloss ... was increased from 35 to 38% and when noodles made from soft wheat flour were mixed under vacuum. Vacuum mixing sig- nificantly increased gloss of boiled noodles made from soft wheat flours....

Ngày tải lên: 16/12/2012, 15:25

Ngày tải lên: 23/10/2013, 08:42