ASME PTC 23-2003 [Revision of ANSI/ASME PTC 23-1986 (R1997)] REAFFIRMED 2009 FOR CURRENT COMMITTEE PERSONNEL PLEASE E-MAIL CS@asme.org ATMOSPHERIC WATER COOLING EQUIPMENT PERFORMANCE TEST CODES An Am e r i c a n N a t i o n a l S t a n d a r d Intentionally left blank A N A M E R I C A N N A T I O N A L S T A N D A R D ATMOSPHERIC WATER COOLING EQUIPMENT ASME PTC 23-2003 [REVISION OF ANSI/ASME PTC 23-1986 (R1997)] PERFORMANCE TEST CODES Date of Issuance: November 10, 2003 This Standard will be revised when the Society approves the issuance of a new edition There will be no addenda issued to this edition ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard Interpretations are published on the ASME Web site under the Committee Pages at http://www.asme.org/codes/ as they are issued ASME is the registered trademark of The American Society of Mechanical Engineers This code or standard was developed under procedures accredited as meeting the criteria for American National Standards The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990 Copyright © 2003 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved Printed in U.S.A CONTENTS Foreword Committee Roster Correspondence with the PTC 23 Committee Introduction v vi viii ix Section Object and Scope 1-1 Object 1-2 Scope 1-3 Uncertainty 1 1 Section Definitions and Description of Terms 2-1 Symbols 2-2 Definitions 2-3 Units 3 Section Guiding Principles 3-1 Advanced Planning for Test 3-2 Agreements Prior to Test 3-3 Test Overview 3-4 Preparation for Test 3-5 Duration of Testing 3-6 Stability of Test Conditions 3-7 Readings 3-8 Limitations 3-9 Manufacturer’s Performance Curves 8 8 9 10 10 10 11 Section Instruments and Methods of Measurement 4-1 General Requirements 4-2 Measurement of Water Flow 4-3 Measurement of Water Temperature 4-4 Measurement of Air Temperature 4-5 Wind Velocity 4-6 Tower Pump Head 4-7 Measurement of Fan Power 4-8 Measurement of Sound Level 4-9 Measurement of Atmospheric Pressure 4-10 Measurement of WSACC Pressure and Heat Load 4-11 Water Analysis 4-12 Measurement of Drift Loss 4-13 Data Recording 13 13 13 17 18 20 21 21 22 22 22 22 23 23 Section Calculations and Results 5-1 General 5-2 Water Flow 5-3 Water Temperatures 5-4 Air Temperatures 5-5 Steam Condensing Temperature 5-6 Air Velocity 5-7 Tower Pumping Head 5-8 Fan Power 5-9 Atmospheric Pressure 5-10 Thermal Capability 24 24 25 26 27 27 27 28 28 29 29 iii 5-11 5-12 Plume Compliance Uncertainty 30 32 Section Report of Results 6-1 Composition of Report 6-2 Report Data 36 36 36 Figures 4-2.1 Recommended Velocity Traverse Probe Positions 14 Tables 3-8 4-5.2 5-3 Noncondensable Gas Load Limits Upper Level Wind Exponent Temperature Corrections 12 21 26 Nonmandatory Appendices A Performance Monitoring B Ultrasonic Flowmeters C Tracer Dilution Method for Water Flow Determination D Uncertainty Calculation E Sample Calculation for Mechanical Draft Towers F Sample Calculation for Natural Draft Towers G Sample Calculation for Plume Compliance H Sample Calculation for Closed-Circuit Evaporative Coolers I Sample Calculation for Wet Surface Air-Cooled Condensers (WSACC) J Illustrations of Cooling Equipment K Other Methods for Air Temperature Measurement L Reporting Forms M References 37 41 45 48 58 64 73 76 82 87 99 100 109 iv FOREWORD In 1918, revision began on the original ten Codes that formed the 1915 edition of the ASME Power Test Codes and it was decided to include water cooling in the list of revised Codes Following the appearance of the Test Code for Atmospheric Water Cooling Equipment in tentative form in the August 1928 issue of Mechanical Engineering, the Society presented this Code for discussion at a public hearing held in December 1928 during its annual meeting in New York The Code was approved at the June 2, 1930 meeting of the Standing Committee, and was adopted by the Council as a standard practice of the Society on August 4, 1930 A new Technical Committee for Atmospheric Water Cooling Equipment was formed in 1948 to update the Code Agreement on the location for the wet-bulb temperature measurement was the major issue While there was general recognition that tower performance was governed by the entering wet-bulb temperature, at that time there was concern about responsibility for plume re-circulation and interference The difficulty of obtaining adequate air temperature coverage of both sides of large towers was considered insurmountable For this reason, some believed it would be better to relate performance to an ambient temperature measured some distance upwind and to have performance stated and substantiated on that basis In 1954, a seven-person Subcommittee with representation from the American Society of Refrigeration Engineers and the Cooling Tower Institute (now known as Cooling Technology Institute) was appointed to abbreviate and bring to an early conclusion the work of the 1948 Technical Committee The Subcommittee’s work was completed and a Code based on ambient wet-bulb temperature measurement was adopted by the Society on January 29, 1958 The growing number and size of towers, the evolution of the natural draft tower, and continuing disagreement on ambient versus entering wet-bulb temperature led to the formation of a new Committee in December 1968 Modern instrumentation and the availability of data acquisition systems had advanced measurement methods since the 1958 Code Model test results and error analysis made available to the Committee supported the position that tower performance should be related to entering wet-bulb temperature in the revised Code This issue of the Code was approved by ANSI and published by the Society in November 1986 Continued advances in instrumentation, experiences with the testing itself and test uncertainty, installation of a variety of other types of evaporative cooling equipment, and more stringent environmental regulations led to the convening of a new Committee in 1995 Its objective was to extend the Code to include plume abatement compliance of wet–dry towers and the performance test procedures for cooling towers, closed circuit evaporative coolers and wet surface aircooled condensers In the interim, the impact on plant economics of the cooling system’s operating performance became better understood Hence, Appendix A in the new Code addresses practical techniques of monitoring the performance of cooling towers As in past editions of PTC 23, the most accurate test methods were established as Code However, the Committee was aware that for some towers, an elaborate test was not practical or economically viable Therefore, nonmandatory Appendix K provides simpler test methods These test methods, being less accurate, have a higher uncertainty To expedite the completion of this version of the Code, sections of CTI Code ATC-105 were used with the permission of the Cooling Technology Institute (CTI) That contribution is acknowledged and appreciated The Committee voted to approve the document on November 13, 2002 It was then approved and adopted by the Council as a Standard practice of the Society by action of the Board on Performance Test Codes on February 28, 2003 The Code was also approved as an American National Standard by the ANSI Board of Standards Review on March 13, 2003 v PERFORMANCE TEST CODE COMMITTEE 23 ON ATMOSPHERIC WATER COOLING EQUIPMENT (The following is the roster of the Committee at the time of approval of this Standard.) COMMITTEE OFFICERS J M Burns, Chair F L Michell, Vice Chair J H Karian, Secretary COMMITTEE PERSONNEL J M Burns, Burns Engineering Services, Inc J W Cuchens, Southern Company Services, Inc D H Drew, Alternate, American Electric Power R D Fulkerson, Fulkerson & Associates, Inc K W Hennon, Power Generation Technologies/E.S.C E Hernandez, Hitachi America Ltd D Hutton, Baltimore Aircoil Co D C Karg, Santee Cooper J H Karian, The American Society of Mechanical Engineers C Lazenby, Alternate, Southern Company Services, Inc P A Lindahl, Jr, Marley Cooling Tower Co F L Michell, American Electric Power G R Mirsky, Alternate, Hamon Cooling Towers M Monjoie, Hamon Thermal Europe G C Morris, Niagara Blower Co D Wheeler, Alternate, Power Generation Technologies The Committee acknowledges with thanks the contributions made by Marcel R Lefevre to the initial development of this revision and for his initiative in helping to reconstitute the Committee vi BOARD ON PERFORMANCE TEST CODES OFFICERS S J Korellis, Chair J R Friedman, Vice Chair S Weinman, Secretary BOARD PERSONNEL P G Albert R P Allen R L Bannister J M Burns C Campbell M J Dooley A J Egli J R Friedman G J Gerber P M Gerhart Y Goland T C Heil D R Keyser S J Korellis P M McHale J W Milton G H Mittendorf, Jr S P Nuspl A L Plumley R R Priestley J Siegmund J A Silvaggio, Jr W G Steele, Jr T S Todd J C Westcott J G Yost vii CORRESPONDENCE WITH THE PTC 23 COMMITTEE General ASME Codes are developed and maintained with the intent to represent the consensus of concerned interests As such, users of this Code may interact with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings Correspondence should be addressed to: Secretary, PTC 23 Standards Committee The American Society of Mechanical Engineers Three Park Avenue New York, NY 10016-5990 Proposing Revisions Revisions are made periodically to the Code to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Code Approved revisions will be published periodically The Committee welcomes proposals for revisions to this Code Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation Interpretations Upon request, the PTC 23 Committee will render an interpretation of any requirement of the Code Interpretations can only be rendered in response to a written request sent to the Secretary of the PTC 23 Standards Committee The request for interpretation should be clear and unambiguous It is further recommended that the inquirer submit his/her request in the following format: Subject: Edition: Question: Cite the applicable paragraph number(s) and the topic of the inquiry Cite the applicable edition of the Code for which the interpretation is being requested Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation The inquirer may also include any plans or drawings, which are necessary to explain the question; however, they should not contain proprietary names or information Requests that are not in this format will be rewritten in this format by the Committee prior to being answered, which may inadvertently change the intent of the original request ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee or Subcommittee ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity Attending Committee Meetings The PTC 23 Standards Committee regularly holds meetings, which are open to the public Persons wishing to attend any meeting should contact the Secretary of the PTC 23 Standards Committee viii ASME PTC 23-2003 NONMANDATORY APPENDIX J Outlet air flow Noncondensables to evacuation system Steam supply Inlet air flow Condensate return WSACC steam inlet Spr ay bas water in Basin water make-up Spray water piping Basin water flow-down to drain Pum pp it Fig J13 Wet Surface Air-Cooled Steam Condenser (WSACC) 98 ASME PTC 23-2003 NONMANDATORY APPENDIX K OTHER METHODS FOR AIR TEMPERATURE MEASUREMENT K1 GENERAL average of measurements taken at not less than three locations ft (1.5 m) above the basin curb elevation not less than 50 ft (15 m) and not more than 100 ft (30 m) upwind of the equipment, and equally spread along a line substantially bracketing the flow of air to the equipment Measurements at all locations should be made simultaneously, if possible, or in rapid succession If the locations specified are not accessible or contain equipment that can affect the measured wet-bulb temperature, alternative locations should be mutually agreed upon For natural draft cooling tower, wet- and dry-bulb measurements shall be located at the same positions as those specified above The alternative methods listed below produce test results that are less accurate and less reproducible than those described in Section The Committee recognizes that it is sometimes necessary to perform a test using these methods, so guidance should be offered in their use If these procedures are used, it must be by mutual agreement between the parties and only after the resulting inaccuracies have been carefully evaluated These inaccuracies are due to the difference between the true inlet air temperature and that being measured For either of the following methods to yield accurate results, the true inlet wet bulb must be substantially the same as that at ground level This will be true only if the following conditions apply: (a) The cooling tower is not subject to interference from other cooling towers or other heat sources in the vicinity (b) There is no recirculation of the cooling tower plume into the cooling tower inlet Low wind speed and a vertically rising plume may be taken as indications of no recirculation Since cooling tower plumes may not be visible, lack of visible recirculation or interference is not sufficient to guarantee that no recirculation or interference exists This is no stratification of air temperature in the atmosphere K1.2 Ground Level Test Using this methodology, air temperature measurements are made ft (1.5 m) above the basin curb, within ft (1.2 m) of the air inlets For mechanical draft counterflow cooling towers, the number of psychrometers deployed should be equivalent to that specified in Section Ground level air temperature measurements are not recommended for crossflow mechanical draft cooling towers, due to the significant recirculation that typically occurs Ground-level testing is often used for counterflow type natural draft cooling towers, as it is not easy to install psychrometers at several levels K1.1 Ambient Test For mechanical draft cooling towers, the ambient wetbulb temperatures shall be determined as the arithmetic 99 ASME PTC 23-2003 NONMANDATORY APPENDIX L REPORTING FORMS This Appendix contains the following forms: (a) Form L1, Report of Results of Wet Mechanical and Natural Draft Cooling Towers (b) Form L2, Report of Results for Closed-Circuit Evaporative Wet Coolers (c) Form L3, Report of Results of Wet-Dry Cooling Towers (d) Form L4, Report of Results for Wet Surface AirCooled Steam Condensers (WSACC) 100 NONMANDATORY APPENDIX L ASME PTC 23-2003 Form L1 Report of Results of Wet Mechanical and Natural Draft Cooling Towers (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) General Information Number of test runs Duration of test runs hr Atmospheric pressure in Hg Wind speed/Gusts / Wind direction Weather Total dissolved solids ppm Oil content of circulation water Quantity of water stored in basin Thermal lag time (a) (b) (c) Water Flow Rates Circulating water Makeup water Blowdown water (a) (b) (c) (d) (e) (f) Water Temperatures Hot water temperature °F (°C) Cold water temperature °F (°C) Makeup water temperature °F (°C) Blowdown water temperature °F (°C) Temperature correction for blowdown and makeup ±°F Temperature correction for pumps ±°F (±°C) (a) (b) (c) (d) (e) (f) Air Temperatures Entering wet-bulb temperature °F Entering dry-bulb temperature °F Ambient wet-bulb temperature °F Ambient dry-bulb temperature °F Natural draft tower dry-bulb temperature at top of air inlet Natural draft tower atmospheric temperature gradient (a) (b) (c) Tower Pumping Head Height from centerline of connecting flange to basin curb Head at centerline of connecting flange ft Velocity head ft (m) (a) (b) (c) (d) (e) (f) Fan and Pumping Information Motor input kW Efficiency of motor % Power output from motor hp Circulating water pump power Circulating water pump efficiency Circulating water pressure at test well (a) (b) Air Flow Rate Volume rate (dry) Mass rate (mixture) (a) (b) Exhaust Air Temperatures Average wet-bulb temperature Average dry-bulb temperature Range 10 Approach 11 Evaporation Loss (s) (Pa) mph ppm lb (s) (m/s) (kg) (m3/s) (m3/s) (m3/s) gpm gpm gpm (°C) (°C) (°C) (°C) °F °F/ft ft (m) (W) % psig (Pa) (m3/s) (kg/s) °F °F (°C) (°C) (°C) °F (°C) lbm/hr (±°C) (W) hp ft3/min lb/hr °F / (kg/s) 101 (°C) (°C/m) (m) ASME PTC 23-2003 NONMANDATORY APPENDIX L Form L1 Report of Results of Wet Mechanical and Natural Draft Cooling Towers (Cont’d) 12 (a) (b) (c) (d) (e) (f) (g) Comparison of Performance Guaranteed water flow rate at test conditions gpm (m3/s) Adjusted water flow rate at test conditions gpm (m /s) Tower capability % Guaranteed cold water temperature (from guaranteed performance curves) Corrected test cold water temperature °F (°C) Test uncertainty (capability) ±% Recirculation °F (°C) 13 (a) (b) (c) Comparison of Tower Pumping Heads Guaranteed tower pumping head at specified water flow Measured tower pumping head corrected to specific flow Difference [Items 13(a) and 13(b)] ft 14 Plume Orientation ft ft (m) deg from vertical 102 °F (m) (m) (°C) NONMANDATORY APPENDIX L ASME PTC 23-2003 Form L2 Report of Results for Closed-Circuit Evaporative Wet Coolers (a) (b) (c) (d) (e) (f) (g) (h) (i) General Information Number of test runs Duration of test runs hr Atmospheric pressure in Hg Wind speed/Gusts / Wind direction Weather Total dissolved solids of spray water Oil content of circulation water Thermal lag time ppm ppm (s) (a) (b) (c) (d) Flow Rates Process fluid Spray water Blowdown water Makeup flow, if any (m3/s) (m3/s) (m3/s) (m3/s) (a) (b) (c) (d) (e) (f) (g) Water Temperatures Hot fluid temperature °F (°C) Cold fluid temperature °F (°C) Spray (basin) water temperature °F Makeup water, if any, temperature °F Blowdown temperature °F (°C) Temperature correction for blowdown and makeup Temperature correction for pumps ±°F (a) (b) (c) (d) Air Temperatures Entering wet-bulb temperature Entering dry-bulb temperature Ambient wet-bulb temperature Ambient dry-bulb temperature (a) (b) (c) Tower Pumping Head Height from centerline of connecting flange to basin curb Head at centerline of connecting flange ft Velocity head ft (m) (a) (b) (c) (d) (e) (f) Fan and Pumping Information Motor input kW Efficiency of motor % Power output from motor Spray water pump power Spray water pump efficiency Spray water pressure at test well (a) (b) Air Flow Rate Volume rate (dry) Mass rate (mixture) (a) (b) Exhaust Air Temperatures Average wet-bulb temperature Average dry-bulb temperature Process Fluid Range 10 Process Fluid Approach 11 Evaporation Loss 12 Heat Exchanger Pressure Drop (s) (Pa) mph gpm gpm gpm gpm / °F °F °F °F (m/s) (°C) (°C) ±°F (±°C) (±°C) (°C) (°C) (°C) (°C) hp hp ft (m) (W) (W) % psig ft3/min lb/hr (Pa) (m3/s) (kg/s) °F °F °F (°C) (°C) (°C) °F (°C) lbm/hr (kg/s) psi (Pa) 103 (m) ASME PTC 23-2003 NONMANDATORY APPENDIX L Form L2 Report of Results for Closed-Circuit Evaporative Wet Coolers (Cont’d) 13 (a) (b) (c) (d) (e) (f) (g) Comparison of Performance Guaranteed fluid flow rate at test conditions gpm (m3/s) Adjusted fluid flow rate at test conditions gpm (m /s) Tower capability % Guaranteed cold fluid temperature (from guaranteed performance curves) Corrected test cold fluid temperature °F (°C) Test uncertainty (capability) ±% Recirculation °F (°C) 14 (a) (b) (c) (d) Comparison of Fan HP and Pump Head Guaranteed tower pumping head at specified water flow Measured tower pumping head corrected to specific flow Guaranteed fan hp Measured fan hp ft ft 104 °F (m) (m) (°C) NONMANDATORY APPENDIX L ASME PTC 23-2003 Form L3 Report of Results of Wet-Dry Cooling Towers (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) General Information Type of test: Thermal Performance Number of test runs Duration of test runs hr Atmospheric pressure in Hg Wind speed/gusts / Wind direction Weather Total dissolved solids of circulation water Oil content of circulation water Thermal lag time (a) (b) (c) Water Flow Rates Circulating water Makeup water Blowdown water (a) (b) (c) (d) (e) (f) Water Temperatures Hot water temperature °F (°C) Cold water temperature °F (°C) Makeup water temperature °F (°C) Blowdown water temperature °F (°C) Temperature correction for blowdown and makeup ±°F Temperature correction for pumps ±°F (±°C) (a) (b) (c) (d) Air Temperatures Entering wet-bulb temperature Entering dry-bulb temperature Ambient wet-bulb temperature Ambient dry-bulb temperature (a) (b) (c) Tower Pumping Head Height from centerline of connecting flange to basin curb Head at centerline of connecting flange ft Velocity head ft (m) (a) (b) (c) (d) (e) (f) Fan and Pumping Information Motor input kW Efficiency of motor % Power output from motor hp Circulating water pump power hp Circulating water pump efficiency Circulating water pressure at test well (a) (b) Air Flow Rate Volume rate (dry) Mass rate (mixture) (a) (b) Exhaust Air Temperatures Average wet-bulb temperature Average dry-bulb temperature 10 11 Range Approach Evaporation Loss , Plume Abatement (s) (Pa) mph ppm (m3/s) (m3/s) (m3/s) °F °F °F °F ft3/min lb/hr °F (m/s) ppm (s) gpm gpm gpm °F / (°C) (°C) (°C) (°C) ft (m) (W) (W) % psig (Pa) (m3/s) (kg/s) °F °F (°C) (°C) lbm/hr (±°C) (°C) (°C) (kg/s) 105 (m) ASME PTC 23-2003 NONMANDATORY APPENDIX L Form L3 Report of Results of Wet-Dry Cooling Towers (Cont’d) 12 (a) (b) (c) (d) (e) (f) (g) Comparison of Performance Guaranteed water flow rate at test conditions gpm (m3/s) Adjusted water flow rate at test conditions gpm (m /s) Tower capability % Guaranteed cold water temperature (from guaranteed performance curves) Corrected test cold water temperature °F (°C) Test uncertainty (capability) ±% Recirculation °F (°C) 13 (a) (b) (c) Comparison of Tower Pumping Heads Guaranteed tower pumping head at specified water flow Measured tower pumping head corrected to specific flow Difference [Items 13(a) and 13(b)] ft 14 (a) (b) (c) (d) (e) Plume Indicator Visual Inspection: No plume Measured exhaust relative humidity Guaranteed exhaust relative humidity Plume indicator % (c)/(b) Mixing quality coefficient , Wispy ft ft °F (m) (m) (m) , Light % % 106 , Heavy (°C) NONMANDATORY APPENDIX L ASME PTC 23-2003 Form L4 Report of Results for Wet Surface Air-Cooled Steam Condensers (WSACC) (a) (b) (c) (d) (e) (f) (g) (h) (i) General Information Number of test runs Duration of test runs hr Atmospheric pressure in Hg Wind speed/Gusts / Wind direction Weather Total dissolved solids of spray water Oil content of spray water ppm Thermal lag time (a) (b) (c) (d) Flow Rates Steam mass flow rate Spray water Blowdown water Makeup flow, if any (a) (b) (c) (d) (e) Water Temperatures Spray (basin) water temperature °F Makeup water, if any, temperature °F Blowdown temperature °F Temperature correction for blowdown and makeup Temperature correction for pumps ±°F (a) (b) (c) (d) Air Temperatures Entering wet-bulb temperature Entering dry-bulb temperature Ambient wet-bulb temperature Ambient dry-bulb temperature (a) (b) (c) Tower Pumping Head Height from centerline of connecting flange to basin curb Head at centerline of connecting flange ft Velocity head ft (m) (a) (b) (c) (d) (e) (f) Fan and Pumping Information Motor input kW Efficiency of motor % Tower output from motor Spray water pump power Spray water pump efficiency Spray water pressure at test well (a) (b) Air Flow Rate Volume rate (dry) Mass rate (mixture) (a) (b) Exhaust Air Temperatures Average wet-bulb temperature Average dry-bulb temperature Heat Load BTU/hr 10 Approach °F 11 Evaporation Loss 12 Steam Quality 13 Condenser Steam Side Pressure lbm/hr (s) (Pa) mph / (m/s) ppm (s) (kg/s) (m3/s) (m3/s) (m3/s) gpm gpm gpm (°C) (°C) (°C) ±°F (±°C) °F °F °F °F (°C) (°C) (°C) (°C) hp hp ft (m) (W) (W) % psig ft3/min lb/hr (Pa) (m3/s) (kg/s) °F °F (°C) (°C) (Kcal/min) (°C) lbm/hr (±°C) (kg/s) % in Hga (Pa) 107 (m) ASME PTC 23-2003 NONMANDATORY APPENDIX L Form L4 Report of Results for Wet Surface Air-Cooled Steam Condensers (WSACC) (Cont’d) 14 Noncondensable Gases Noncondensable gas load (m3/s) SCFM 15 (a) (b) (c) (d) (e) (f) Comparison of Performance Guaranteed steam flow rate at test conditions Adjusted steam flow rate at test conditions WSACC capability % Guaranteed condensing pressure in Hga Entering wet bulb temperature °F Test uncertainty (capability) ±% 16 (a) (b) (c) (d) Comparison of Fan Horsepower and Pump Head Guaranteed WSACC pumping head at specified water flow Measured WSACC pumping head corrected to specific flow Guaranteed fan hp Measured fan hp lb/hr lb/hr (kg/s) (kg/s) Pa (°C) ft ft 108 (m) (m) ASME PTC 23-2003 NONMANDATORY APPENDIX M REFERENCES PGT TIN 2001-1640, Uncertainty Analysis and Sample Calculations (internal document), Hennon and Wheeler Publisher: Power Generation Technologies (PGT), 200 Tech Center Drive, Knoxville, TN 37912 ASHRAE Handbook of Fundamentals, 1981 Publisher: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA 30329 ASME PTC 19.1, Test Uncertainty, 1995 and 1998 editions ASME PTC 23, Atmospheric Water Cooling Equipment, 1986 edition Publisher: The American Society of Mechanical Engineers (ASME International), Three Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Hennon and Wheeler, “Uncertainty Analysis of Cooling Tower Performance.” Paper presented at the American Power Conference, 1996 Laidlaw, I M S and Smart, P L., “An Evaluation of Fluorescent Dyes for Water Tracing,” Water Resources Research 13, no (February 1977):15-33 Turner, D B Workbook of Atmospheric Dispersion Estimates1 Wark, Kenneth and Warner, Cecil F., Air Pollution: Its Origin and Control, 3rd ed Old Tappan, NJ: AddisonWesley Publishers CTI ATC-105, Acceptance Test Code for Closed Circuit Cooling Towers, 1997 CTI ATC-140, Isokinetic Drift Measurement Test Code for Water Cooling Tower CTI Cooling Tower Manual, Field Test Handbook, 1983 CTI Bulletin STD-146, Standard Water Flow Measurement Publisher: Cooling Technology Institute (CTI), 2611 FM 1960 West, Houston, TX 77068-3730 Copies may be obtained from National Technical Information Service, U.S Department of Commerce, 5285 Port Royal Road, Springfield, VA 22151 109 Intentionally left blank Intentionally left blank C05503