AS 4180.1-1994

1 - AS 4180.1:1994 DRIFT LOSS FROM COOLING TOWERS - LABORATORY MEASUREMENT - CHLORIDE BALANCE METHOD
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - 1 SCOPE
7 - 2 APPLICATION
7 - 3 REFERENCED DOCUMENTS
7 - 4 DEFINITIONS
7 - 4.1 Circulating water temperature
7 - 4.2 Clean
7 - 4.3 Cooling tower
7 - 4.4 Drift
8 - 4.5 Drift loss mass flow rate
8 - 4.6 Dry bulb temperature
8 - 4.7 Effective wet bulb depression
8 - 4.8 Water mass flow rate
8 - 4.9 Wet bulb depression
8 - 4.10 Wet bulb temperature
8 - 5 GENERAL REQUIREMENTS FOR EQUIPMENT TESTED
8 - 5.1 General
8 - 5.2 Device under test
8 - 5.3 Water leaks
8 - 6 REQUIRED TEST CONDITIONS
8 - 6.1 General
9 - 6.2 Flow rates
9 - 6.3 Wind velocity
9 - 6.4 Rain
9 - 6.5 Test temperatures
9 - 6.6 Water samples
9 - 7 SODIUM CHLORIDE REQUIREMENTS
9 - 7.1 General
9 - 7.2 Sodium chloride mass
9 - 7.3 Accuracy
9 - 7.4 Sodium chloride solution
9 - 8 CHLORIDE ION CONCENTRATION MEASUREMENT
9 - 8.1 Samples
9 - 8.2 Measurement
10 - 9 TEST PROCEDURE
11 - 10 CALCULATIONS
11 - 10.1 Circulating water
11 - 10.2 Drift measurement time
11 - 10.3 Mass of sodium chloride
11 - 10.4 Mean effective wet bulb
11 - 10.5 Evaporation ratio
11 - 10.6 Drift loss
11 - 10.7 Percentage drift loss
12 - 11 TEST REPORT
13 - APPENDIX A - NOMENCLATURE
14 - APPENDIX B - SAMPLE CALCULATIONS
14 - B1 GENERAL
14 - B2 INITIAL MEASUREMENTS
14 - B3 MASS OF SODIUM CHLORIDE
14 - B4 MAKE-UP WATER TIME
14 - B5 DRIFT TIME
14 - B6 SAMPLE READINGS
15 - B7 WATER MASS
15 - B8 CHECK DRIFT TIME
15 - B9 CHECK SALT MASS
15 - B10 EVAPORATION RATIO
16 - B11 DRIFT LOSS RATE
16 - B12 PERCENTAGE DRIFT LOSS
17 - APPENDIX C - SUGGESTED EQUIPMENT

Sets out the requirements necessary to obtain measurements of drift of circulatory water into the atmosphere from a cooling tower, by a chloride ion mass balance on the water circuit, under laboratory conditions.

This Standard sets out the requirements necessary to obtain measurements of drift of circulating water into the atmosphere, by a chloride ion mass balance on the water circuit, under laboratory conditions.

First published as AS 4180.1-1994.