Asme ptc 28 1965 (1979) scan (american society of mechanical engineers)

Determining the Properties of Fine Particulale Matter COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services Deeermining the Properties of Fine Particulate Matter COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 POWER TEST CODES Library of Congress Card Catalog No 65-28269 Copyright@, 1965, by THE AMERICAN SOCIETY O F MECHANICAL ENGINEERS Printed in the United States of America COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services FOREWORD I N November, 1954, agroup of engineers from amongtheleadingutilitiesandequipmentmanufacturers discussed the need of standardized methods and measuring equipment to determine the size of small particulate matter such as is found in dust and smoke, It was suggested that the ASME Power Test Codes Committee undertake the preparation of such a test code, In addition to the utilities, the chemical and other industries had problems on particle sizes and were interested in the development of such a t e s t code PTC Committee No 28 on the Measurement of SmalI Particulate Matter was organized in April, 1955, andchargedwiththedevelopment of a test code The Committee has made maximum u s e of the work being done by other organizations in the field s u c h a s t h e American Society for Testing and Materials and the Air Pollution Control Association The Committee has attempted to establish test standards for the determination of all of those properties of fine particulate matter which are involved in the design and evaluation of dust separating apparatus.Thisincludessuchpropertiesasterminalvelocitydistribution,particlesize,bulkelectrical resistivity, surface area, loss on ignition, etc, The Committee was successful in obtaining the cooperation of the U.S Public Health Service, Department of Health, Education and Welfare, which made the facilities of its Robert A Taft Sanitary Engineerof ing Center available A research project was conducted to develop and prepare “standard samples” sub-sieve-sizematerialforcalibration of thoseinstrumentsusedforthedetermination of terminal velocity distribution These “standard samples” will be made available for use in conjunction with the T e s t Code o This Cade was approved by the Power Test Codes Committee on April 27, 1964 It was approved and adopted by the ASME Council a s a standard practice of the Society by action of the Board on Codesand Standards on September 15, 1964 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ July, 1965 COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 ASME P T C r 65 W 7 0053276 W PERSONNEL OF PTC COMMITTEE NO 28 ON MEASUREMENT OF SMALL PARTICULATE MATTER W A Crandail, Chairman J Deane Sensenbaugh, Secretary W E Archer, Manager of Research and Development, Western Precipitation Division, Joy Manufacturing Company, P O Box 2744, Terminal Annex, Los Angeles 54, California 8111 Tireman William E Barkovitz, Senior Power Application Engineer, American-Standard Industrial Division, Avenue, Detroit 32, Michigan F D Buckley, Product Development Engineer, Clark Brothers Company, Division of Dresser Industries, Inc., Olean, New York W A Crandall, Division Engineer, Production Department, Consolidated Edison Place, NewYork,NewYork 10003 Company of New York, Inc., Irving Richard B Engdahl, Division Chief, Thermal Engineering Division, Battelle Memorial Institute, Columbus 1, Ohio R hl Junge, Development Engineer, Gas Turbine Department, General Electric Company, 5, New York 505 King Avenue, River Road, Schenectady hl Sacid Ozker, Division Supervisor, Mechanical Division, Engineering Research Department, The Detroit Edison pany, 2000 Second Avenue, Detroit Com- 26, Michigan - Alfred A Petersen, Vice-president Charge of Research, Industrial Division, Prat-Daniel Plant, Aerotec Industries, Inc., Meadow Street, South Norwalk, Connecticut ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Andrew H Rose, Jr., Chief, Engineering Research and Development Section, Division of Air Pollution, Robert A 26, Ohio Taft Sanitary Engineering Center, U.S Department of Health, Education and Welfare, Cincinnati J W Schindeler, Manager of Proposal Department, Lebanon, Pennsylvania Bue11 Engineering Company, Inc., 253 North Fourth Street, 17042 J Deane Sensenbaugh, Air Pollution Engineer, Research Department, Combustion Engineering, Inc., Prospect Hill Road, Windsor, Connecticut Eugene P Stastny, hlanager of Engineering, Industrial Gas Cleaning Department, Koppers Company, Street, Baltimore 3, Maryland Inc., 200 Scott O, R Van Buskirk, Research Engineer, Engineering Research Laboratory, Experimental Station, E I du Pont de Nemours & Company, Inc., Wilmington 98, A.B Delaware Walker, Manager, Engineering Development, Research-Cottrell, Thomas C Weston, Assistant Superintendent, Station Street, Philadelphia , Pennsylvania Inc., Bound Brook, New Economy Division, Philadelphia Electric Jersey Company, 1000 Chestnut The following former committee members also made significant contributions to the preparation of this Code prior to their retirement from active committee work Recognition is hereby extended to them for their past efforts $1 J, ArchboId, formerly with Commonwealth Edison Company, H D Danz, formerly with American-Standard Industrial Division, G V Eiserman, H 1114400 72 Adams Street, Chicago, Illinois 8111 Tireman Avenue, Detroit 32, Michigan formerly with Green Fuel Economizer Company, Beacon, New York Pier, formerly with Research-Cottrell, Inc of Bound Brook, New Fifth Avenue, Pittsburgh, Pennsylvania COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services Jersey and the Air Pollution Control Association, Personnel of Power Test Codes Committee W G McLean, Chairman J W Murdock, Vice-Chairman J H Anderson Theodore Baumeister H S Bean K C Cotton R C Dannettel J M Driscoll M , D Engle V F Estcourt P H Knowlton, Jr F H Light J H Fernandes F K Fischer L J Hooper R M Johnson T J Judge R C King, Jr E L Knoedler J F McLaughlin, Jr R T Mathews W T Moore m C Osborne W A Pollock J F Sebald ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ I COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 Test Code for DETERMINING THE PROPERTIES O F FINE PARTICULATE MATTER CONTENTS Section Pars, , 0.1-0.3 OBJECT AND SCOPE 1.01-1.04 INTRODUCTION , 2.01-2.14 GUIDING PRINCIPLES 3.01-3.04 T E S T METHODS FOR DETERM'INATION OF: 4.01-4.1 Terminal Velocity Distribution 4.02 Specific Gravity ., 4.03 Sieve Analysis , 4.04 Bulk Electrical Resistivity 4.05 Moisture Content 4.06 Loss of Ignition 4.07 Water Soluble Content 4.08 Water Soluble Sulfate Content 4.09 Bulk Density 4.10 Specific Surface , 4.1 APPENDIX, , .,,, , 5.01-5.15 Description of Centrifugal C l a s s i f i e r , 5.02-5.10 Installation and Calibration 5.11 DESCRIPTION AND DEFINITION O F TERMS , , ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ , , , , , , , , Standard Samples for Calibration 5.12 Relationship Between Terminal Velocity and Particle I , 5.13-5.15 Diameter COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services ASME PTCm28 b W 0757670 0053274 O m SECTION O, INTRODUCTION 0.1 T h i s Code is intended to define the test procedures to be used for the determination of those physical and chemical properties of d u s t which are involved in the design andevaluation of Dust SeparatingApparatus 0.2 For the purpose of this Code “dust” is defined a s the particles of gas-borne solid matter having terminal velocities greater than 0.1 inch per minute in air The larger gas-borne particles (having terminal velocities greater than 1000 inches per minute) which are the product of combustion of solid fuel are usually referred to a s “cinders,” but come under the general heading of dust Smoke, a s distinguishedfrom dust, is the result of incomplete or arrested combustion of the volatile constituents of fuels and usually consists of particles having terminal velocities less than 0.1 inch per minute Soot is composed of agglomerated smoke particles The term “ f l y a s h ” i s n o t used in this Code, although several of the test methods make reference to other standard methods developed for the testing of fly ash 0.3 Unless otherwise specified, all references to other codes refer to ASME Power Test Codes SECTION 1, OBJECT AND SCOPE ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 1.01 The object of the test shall be to determine various physical and chemical properties of dust This Code provides procedures for determining these properties and defines the terminology to be used in stating these properties 1.02 Modifications of the test procedures contained in this Code or the determination of special data outside the scope of this Code shall be made only after written agreement of all parties to the test regarding details of the test, methods of computation, and terminology to be used in reporting results - all of which shall be completely described in the t e s t report 1.03 This Code excludes the methods to be employed in obtaining the samples of dust to be tested It shall be assumed that the samples of gas-borne dust taken from a duct shall be taken COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services in accordance with the Test Code for Determining Dust Concentration in a Gas Stream (PTC 27-1957) It i s recommended that samples should not be obtained from a large bulk of material in a hopper, silo, or from a similar location, If it is necessary to take samples from such a location due to the design of the particular unit being tested, the samples shall be taken by such procedures as will insure their being representative of the whole In either case, the methods to be employed shall be defined in awritten agreement between all parties to thetest 1.04 Should the specific directions given in this Code for any particular measurement differ from those given in other ASMEPower Test Codps for similar measurements, the instructions of this Code shalt prevail unless otherwise agreed by the parties to the test www.bzfxw.com 免费下载 SECTION 2, DESCRIPTION AND DEFINITION OF TERMS 2.01 This Code specifies the test procedures to be employed in the determination of certain physical and chemical properties of dust These properties and other terms used in connection with their determination are defined by the following: 2.02 TerminalVelocity Theequilibriumvelocity, expressed in inches per minute, associated with a given particle when the drag force produced by the particle freely falling through dry a i r a t 68 F and 29.92 in Hg abs is equal and opposite t o the force of gravity acting on the particle to produce the motion 2.03 TerminalVelocityDistribution The tabular or graphical presentation of data showing the per cent by weight of those particles in a dust sample having terminal velocities less than various indicated values 2.07 BreakdownVoltage Theelectrical potential, expressed in volts per centimeter, which will produce a change in the physical characteristics of a dust sample accompanied by sudden increase in current flow through the sample beyond that occurring a t a slightly lower potential URl e s s otherwise specified, this property shall be determined under the same conditions a s t h o s e for the determination of Bulk Electrical Resistivity 2.08 Moisture Content The loss in weight of a dust sample, expressed in per cent, occurring when the sample is dried in free air at a temperature of 105 C 2.09 Loss on Ignition The loss in weight of a dried dust sample, expressed in per cent, occurring when the sample i s ignited in free air at a temperature of 800 C 2.04 SpecificGravity The weight per unit volume of a particle or a group of particles in a dust sample relative to that of pure water at C, expressed as a decimal fraction Only that volume actually occupied by the particles is to be considered, not the voids between the particles as they rest together, 2.10 WaterSolubleContent The loss in weight of a dried dust sample, expressed in per cent, occurring when the sample is elutriated with boiling water at atmospheric pressure and then redried 2.05 SieveAnalysis The tabular or graphical presentation of data showing the per cent by weight of those particles which are able to pass through the openings of various indicated sizes of sieves, Unless otherwise specified, sieve numbers shall refer to the U S Standard Sieve Series 2.1 WaterSolubleSulfateContent The sulfate content of a dried dust sample, expressed in per cent by weight, which can be removed from the sample by elutriation with boiling water a t atmospheric pressure Unless otherwise specified, the sulfate content shall be calculated as sulfuric acid (H,SO,) 2.06 BulkElectricalResistivity The resistance to current flow, expressed in ohm-centimeters, through a dust sample contained in a cubic volume one centimeter on a side when exposed to an electrical potential equivalent to 90 per cent of the breakdown voltage of the sample applied uniformly across two opposite faces of the cube Unless otherwise specified, this property shall be determined when the sample is in equilibrium with air at a temperature of 300 F and a t a humidity of per cent by volume 2.12 BulkDensity The density, expressed in pounds per cubic foot, of an uncompressed dust sample ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services 2.1.3 SpecificSurface The surface area per unit weight of a dust sample, expressed in square centimeters per gram 2.14 Those abbreviations and symbols involved in the conduct of specific tests are defined in the test instructions ~~ ASME P T C 8 m 0759b70 0053281 m SECTION 3, GUIDING PRINCIPLES 3.01 The teststo be conducted on asample of dust shall be thosewhichfurnishdataregarding thephysicalandchemicalproperties of themate-ne1 rial which arepertinenttothedesignandevalua-toparties tion of the performance of Dust Separating Appa- (f) Selection of thelaboratoryformakinganytests on thesample if equipmentandtrainedpersonfor conductingthesetestsarenotavailable of theagreement (g) Tolerances, if any, to be applied ratus 3.02 Items on Which AgreementShallbe Reached, The parties to a series of t e s t s on a 3.03 Tolerances This Code does not specify tolerances to be applied to the test results However, in the description of each test, the limits of accuracy of the test are stated as well as the range of results which shall be considered acceptable when duplicate tests are performed on different specimens of the sample If multiple tests are to be performed on a given sample by a laboratory, the method of reporting the composite results shall be established by agreement of all parties con- sample of dust shall reach agreement on the following items, and the agreement shall be in writing: (a) The physical and/or chemical properties to determined by the tests be (b) The tests to be employed in the determination of these properties (c) Details as to any modifications procedures of the test cerned 3.04 Reports The report of t e s t s on a sample of dust need only include those items relative to (e) The methodsto be employed in obtainingthethetests upon whichagreement has beenreached plus the actual test results However, full details sample in cases of deviation from, or for as to the conduct of the tests and the data taken points not covered by, Test Code for Deterduring the tests shall be made available to any mining Dust Concentration in a Gas Stream party to the agreement upon request (PTC 27-1957) (d) The source of the sample ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 11 "y COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 ~ ASME P T C m 65 W 0757670 0 7 W ~ ~~ Table Determination of Specific Surface T (T = t i m e o f a i r flow in seconds = factor for use in equations T 5.10 5.15 5.20 5.25 5.29 3835 5.34 29 5.39 29j5 5.44 30 5.48 5.52 31 5.67 31% 5.61 32 5.66 3055 ~~ 5.70 5.74 3235 33 dF T 26 2655 27 2735 28 5.79 5.83 3335 34 3436 35 3535 5.s7 5.92 6.90 6.00 6.04 36 3635 37 3735 38 6.08 6.12 6.16- 6.20 6.24 6.28 3835 39 3955 40 4035 6.32 6.36 41 6.40 4135 6.44 42 6.46 42% 6.52 43 6.56 43% 6-60 44 6.63 4436 6.67 45 6.71 45$5 6.74 40 8.78 4635 6.82 47 6.86 4735 6.89 48 6.93 45% 6.96 49 7.00 4935 7.04 b o , 7.07 50% 7.10 " , 7.14 7.18L 8.80 8.83 7853 8.86 79 8.89 7755 7s I " 5535 7.45 - 7.45 7.51 793i * 5.92 so SOM 7.55 7.63 7.55 8.97 7.65 7.65 7.71 7.75 7.78 61 7.81 6135 7.84 68 7.87 6253 7.90 63 7.94 106 107 10s 109 110 10.30 10.34 10.39 d/5 fi T 9.00 9.03 9.0G 8255 9.09 83 9.11 8336 9.14 S4 9.17 S455 9.20 S5 9.22 S 5 , 9.25 80 9.27 8656 9.30 S7 9.33 8735 9.3G SS 9.3s SS>$ 9.41 S9 0.43 8935 9.46 S1 6135 S2 12.29 12.33 12.37 151 162 153 154 155 201 202 203 12,h 201 12.45 206 .12.49 12.53 12.57 12.61 12.65 .10.44 10.49 156 157 165 159 160 10.54 10.55 10.63 10.68 10.72 161 162 163 164 165 I " " 58>5 59 5935 60 60j6 101 10.05 102 10.10 10.15 103 104 * 10.20 105 10.25 " " 56 5Gj5 57 5755 55 12.69 12.73 12.77 12.81 12.85 116 10.77 166 l2.88 117 10.82 167 12.92 118 10.8612.96 105 119 10.91 169 13.00 120 10.95 170 13.04 121 11.00 171 13.05 122 11.05 172 13.11 123., .11.09 173 13.15 12.1 .11.14 174 13.19 126 11.18 175 13.23 120 11.22 176 13.27 127 .11.27 177 13.30 128 11.31 178 13.34 129 .11.36 179 13.38 130 11.40 180 13.42 131 11.45 181 l 3.45 132 11.4913.49 182 183 L33 11.5313.53 134 11.55 184 13.56 135 l1.62 185 13.60 111 112 113 114 115 14.18 .14.21 .14.25 .14.25 .14.32 14.35 .14.39 .14.42 14.46 .14.49 211 .14.63 212 .14.60 213 .14.59 214 .14.63 206 207 205 209 210 215 " 216 217 218 219 220 .14.60 14.70 .14.73 -14.76 .14.80 .14.53 222 I 4.90 22.1 .14.97 226 15.03 225 .15.10 230 .15.17 63>5 7.913 232 .15.23 64 8.00 234 .15.30 6.155 8.03 236 .15.36 05 8.06 90 9.49 238 .15.43 6555 8.09 9055 9.51 240 .15.49 66 8.12 91 9.54 242 -15.56 6635 8.16 9153 9.57 244 .15.62 G7 8.19 oz 9.59 246 .15.63 6755 8.22 9236 9.62 2-18 .15.76 6'3 8.25 93 9.64 250 .15.81 6935 8.25 9355 9.67 130 11 .G6 186 13 G4 252 I 5.87 G"; 8.31 !9 9.70 137 11.70 187 13.67 254 .15.94 , ~ 8.34 > l x 0.73 1138 1.75 188 13.71 250 .16.00 70 8-37 !D5 9.75 1139 .11.79 189 13.75 258 .16.46 7035 8.40 !D535 9.76 1140 1.83 190 13.78 ZGO .16.12 71 8.43 !DG 9.SO 1141 11.87 191 13.82 202 .16.19 713G 8.46 !3G)5 9.83 1142 1.92 192 13.86 264 .16.25 72 8.49 !a7 9-65 1143 -11.96 193 13.89 266 .1 6.31 7256 8.52 !a735 9.8s 114.i -12.00 194 13.93 265 .16.37 73 8.51 !as 9.90 1145 12.04 195 13.96 270 .16.43 _7355 8.57 os35 9.93 146 2.05 196 14.00 272 .1 6.49 74 S.GO 99 9.95 147 12.12 197 14.01 274 .16.55 7.115 8.63 9346 9.98 148 12.17 198 14.07 276 .10.01 75 8.66 1O0 .10.00 1.19 12.21 199 4.11 278 .l 6.67 7535 - 100)3., l 0.03 150 12.26 200 14.14 250 .10.73 - " ~~ 76 7G)b I dP T 2' " 8.72 8.75 77 8.7ï 51 5L;i 53 52;s 53 7.21 7.21 7.2E 53j6 7.31 54 7.35 5.iM 7.3s 55 7.43 Time of Air Flow " " " I " " " I ! < " " ! ! * " " " COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 ~ ~~ " ASME P T C * h5 ~ Table Specifications for U.S StandardSieves, Fine Series NOMINAL DIMENSIONS,PERMISSIBLE VARIATIONS, AND LIMITS FORWOVENWIRE CLOTH OF STANDARD SIEVES fU.S.Standard Series (4th Root of Ratio)) Nominal \\'Ire Diometerh Sieve Designation Stnndard (1) Alternate mm (2) (3 ) (8) P)) 0.0001 f US 1.54 37 1.23 o, 05:Io 0.0484 0,111 0.0937 ,0757 0.0tiGl f f 1.10 1.00 0.0430 0.0394 f f 0.900 O.OS54 0.610 0,0319 1.41 1.19 1.o0 0.841 O O558 04GO o 0394 f Et3 0.725 O.OL'S5 0.580 0.0""5 0.0331 f f5 O 707 O 0378 &5 0.595 O,OW4 0.0107 0.0108 f5 f f5 0.480 0.0177 0,390 0.0164 0.3M o, 297 0.0139 0.250 0, 009s o * 00s3 f &6 f5 f " , *2.83 mm., N , 2.38 m m , No.8 ,O0 mnl , No 10 , , 1.08 mm., No 12 , *5.00 mm., N O 334 4.70 m m , ,, N , , '4.00 mm No.6 3.30 mm No (I.,, , 6.GG O.223 4,7G 4.00 O 187 0.157 0.132 , 2.83 , , 2.38 o0 *2 *1.41 m m ,, 1.19 mm,., *1 O0 mm.,, 841 p 3.30 , l.ti8 No No I G , No , No.20 *354 Nb 45 297p No 50 *250 No G O , 210p N o , '177p No 80 , 14Dp No 100 '125 p No 120 No, 140 , 105 188 No 170 p No 200 NO 25 No 30 * 0 p , No 35 No 40 420p.: *707p 595u p * I , I , p * p \, p * *G3p 53p I * *44 p * 37 p , * , , I No 230 , No 270 No 335 No 400 , 0.800 O 420 f &3 f 0,OWO t O,G50 O 0'250 0.510 0.0201 I 0.3-10 0.0194 0.290 0.0114 0059 0.125 o, 00.1!) f G f0 0.105 0.00.11 f G 0.247 O.0097 0,215 0.0os5 0,180 0.0071 0.1521 O 00UO 0.1311 0.003~ 0.110 0.0043 0,ODll 0.003G 0.070 0.0030 o O84 O 074 o ,063 o o53 o ,044 o 00:+5 f G o.orrl O.037 0.0016 0.210 U, 177 O 14!) 0.0117 o, 0070 a o o039 o o035 o ,0021 0.0017 &(J f f A7 rt7 f 0.0025 0.053 0.0021 O.044 O.0017 0.037 0.0016 0.030 0.0012 0.025 0.0010 *These sieves correspond to those proposed a s an International (ISO) Standard It is recommended that wherever possible these sieves be included in all sieve analysis data or reports intended for international publication aThese sieves are not in the fourth root of Series, but they have been included because thearein common usage ZThe average diameter of the warp and of the shoot wires, taken separately, of the colth of any sieve shall not deviate from the nominal values by more than the following: per cent Sieves coarser than 590p 10percent Sieves590pto125 15 per cent Sieves finer than f p NOTE - All measurements of openings and wire diameters shall be made on the completed sieve COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services FIG CENTRIFUGAL CLASSIFIER I ROTOR cMnm FAN Vl0RATOR 4AIUUSTABLE SLIDE FEED HOPPER REVOLVING BRUSH FEED TUBE FEED SLOT FAN WHEEL OUTLET K).COVER II.FOTARY DUCT B FEED W E 13 BRAKE K THROtTLE 5PACER MOTOR-3520 RPM 16 GRADING M E R W THREADED SPINME la SYMMETRICALDISC 19 SIFTING CHAMBER 20 CATCH BASIN 21 HOUSING 22 RADIAL VANES FIG, CROSS SECTION OF CENTRIFUGAL CLASSIFIER COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS REPORT O FIG TEST DETERMINATION O F TERMINAL VELOCITY DISTRIBUTION 10 20 30 40 50 60908070 Per cent Smaller Than Indicated Size COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services Power Test Code 28 ASME P T C * Z B b W ’ b 0 3 O W THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Power Test Code 28 TEST RESULTS Percent Smaller Than Indicated Sise 18 O 76 7.7 7.3 7.2 7.4 /.90 /v*/ /8.3 lL 4.60 34.0 34.6 34 G 34.4 /e /x 9.45 / 51.6 51 / / /s.5 C 66.9 67./ 67,A as.o 75.8 75.7 76.5 /7 / B.5 /8.3 O 42 O v 82.3 82.7 &I 32.3 49 o 84.6 94.I 84 a 84 FIG 31 COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS e Power Test Code28 REPORT 10 TEST 30 20 Per cent COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services 40 FIG 50 60 70 Smaller Than indicated Size 80 95 COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 0.6 0.8 Equation PARTICLES OF Terminal VARIOUS AND 810 SPECIFIC TERMINAL in Inches/Minute GRAVITIES VELOCITY 20 30 40 Velocity = = Terminal 60 Density Density of Fluid of Particle Constant of Particle Velocity 80 100 Gravitational on Stokes’ SPHERICAL PARTICLESIZE 0.4 Based SOLID BETWEEN Diameter 0.3 FOR RELATIONSHIP 10 40 50 60 80 MO 200 Movable Electrode ?/'I to 1" Dia thick by Guard Ring by Thick 1-y" Dia Dust Cup 3" ID, mm deep High Voltage Supply -To FIG BULK ELECTRICAL RESISTIVITY APPARATUS, GENERAL ARRANGEMENT The movable disk electrode is weighted s o that the pressure on the dust layer due to of the gravitational force is 10 grams per square centimeter The nominal thickness dust layer is millimeters The actual thickness is to be determined with movable of electrode resting on the surface of the dust, All electrode surfaces in the region the dust layer are to be well rounded to eliminate high electric field stresses 34 - COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services NOTES : All ElectrodeSurfaces in the Region of the Ash Loyer ore to be Well Rounded to Eliminate High Electric FieldStresses.ElectrodeSurfaces ore to be Flot Weight "W" Sized to make Pressure of Upper Electrode and Guard Ring EqualIOgromsper SquareCentimeter All Threads No.6-32 All Metal of Type 304 S.S Crank Ceramic Insulator S.S Rad- No.6-32 Solder to Electrode - S.S Stud NO.6-32(.138) 6-32 S.S Rod-Silver Solder TackWeld in Four Places FIG BULK ELECTRICAL RESISTIVITY APPARATUS - CONSTRUCTION DETAILS 35 COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 ” I _ ASME P T C * b5 m 0759b70 005330b T m Current Meter I H-V Rectifier Dust Conductivity Ce1I - 0-15 k v Voltmeter -FIG BULK ELECTRICAL RESISTIVITY APPARATUS, ELECTRICAL CIRCUITRY The high-voltage rectifier shall be rated for O to 15 kv voltage output at currents up to milliampere with a total ripple not exceeding 1% T h e current meter may be either an electrometer or a galvanometer having a sensitivity of a t l e a s t lo-’ amperes per scale division COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services Water Reservoir Manometer Pressure Equalizing Tube Needle Valve \ Y UHC Heaters c Conductivity Cell r"- Sight Glass - 'u - iI I I d I I/ I L & J I I , - - J L- Hot Plate Air Heater Duct " " -/ FIG 10 BULK ELECTRICAL RESISTIVITY TEST, TEMPERATURE ANDHUMIDITY CONTROL This apparatus comprises a volumetrically calibrated water-dropping device which feeds water to an electrically heated hot plate located in the duct leading to the electric oven housing the conductivity cell The air (or gas) entering the duct is supplied from a compressed source through a flowmeter and drying units Design of the air (or gas) flow system should allow for approximately to 10 changes per hour and provide for themaintenance of approximately one inch of water positive pressure inside the oven 37 COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 ASME PTC*28 h5 W 0757b70 0 3 W ! ,""_ " " >! FIG 1 LE CHATELIER FLASK FOR SPECIFIC GRAVITY TEST Note: Variations of a few millimeters in such dimensions as the total height of flask, diameter of base, etc., are to b e expected and will not be considered sufficient cause for rejection 38 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services c- -, ~~ ASME P T C * Z 65 m 0757670 0053309 N 1.6 c m Male or female coupling t o f i t bottom of c e l l Clamp or stopcock J I 7, Flat, 0.3 cm wide rl TLength to g i v e * Glass tube 0.9cm O.D 1.5 0.1 cm depth of bed Clearance between c e l l and plunger not m o r e than 0.10 cm 4.0 cm i - 12.5 t o 14.5 cm 5.5 cm - 1.5 cm - 12.5 to 16.0 cm top of manometer PLUNGER AND CELL MANOMETER FIG 12 BLAINE AIR PERMEABILITY APPARATUS FOR SPECIFIC SURFACE TEST COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 ASME P T C 8 m 0053310 L m 3 BAFFLE BOX "7 DENSITY CUP * u SIDE VIEW FRONT VIEW FIG 13 SCOTT VOLUMETER, FOR USE IN THE DETERMINATION OF BULK DENSITY The Scott Volumeter shall consist of the following components: (a) Brass Funnels - A large brass funnel with a metal screen and a smaller funnel with straight stem for directing the sample into the baffle box a - (b) Baffle Box A box with two wooden sides and two glass sides containing a series of glass baffle plates and a funnel at the bottom to collect the sample and direct it into the density cup (c) Density Cup -A square cup with a capacity of +0.002 CU in - A stand to support the funnels and baffle box concentric with the density cup (d) Stand s o that the bottom of the baffle box funnel is 34 in, above the top of the density cup when the apparatus is assembled a s shown above (e) B a s e - A level, vibration-free base to support the funnels, baffle 40 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services box, and density cup Power Test Codes Now Availabl e (1958) (1 954) (1 944) (1 945) (1945) (1965) (1 958) (1957) (1 965) (1 958) (1954) (1962) Atmospheric Water Cooling Equipment Centrifugal Pumps Coal Pulverizers Codeon General Instructions Code on Definitions and qolues Compressors and Exhausters Deaerators Determining Dust Concentration in a Gas Stream Determining Properties of Fine Particulate Matter Diesel and Burner Fuels Displacement Conpressors, Vacuum Pumps and Blowers Displacement Pumps Diesel and Burner Fuels Dust Separafing Apparatus Ejectors and Boosters Evaporating Apparatus Fans Feedwater Heaters Gaseous Fuels Gas Producers and Continuous Gas Generators Gas Turbine Power Plants Hydraulic Prime Movers Internal Combustion Engines Overspeed T r i p Systems for Steam Turbine-Generator Units Reciprocating Steam-Driven Displacement Pumps Reciprocating Steam Engines Safety and Relief Valves Solid Fuels Speed-Governing Systems for Hydraulic Turbine-Gener.ator Units Speed-Governing Systems for Internal Combustion Engine-Generator Units Speed-Governing Systems for Steam-Turbine Generator Units Steam Condensing Apparatus Steam Generating Units Steam Turbines Appendix to Code for Steam Turbines (1958) (1941) (1956) (1955) (1946) (1955) (1 944) (1958) (1953) (1949) (1957) (1 965) (1949) (1949) (1958) ( 1954) (1965) (1962) (1958) (1946) (1964) (1 964) (1964) \ COPYRIGHT American Society of Mechanical Engineers 标准分享网 Licensed by Information Handling Services www.bzfxw.com 免费下载 !