BS EN 1048:2014
$102.76
Heat exchangers. Air cooled liquid coolers (‘dry coolers’). Test procedures for establishing the performance
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 22 |
This European Standard applies to remote forced convection air cooled liquid coolers, within which no change in the liquid phase occurs.
This European Standard does not apply to liquid coolers, designed primarily for installation within the machinery compartment of packaged products.
Its purpose is to establish uniform methods to test and ascertain the following:
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Product identification;
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Capacity;
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Air flow rate;
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Liquid side pressure drop;
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Energy requirements.
This European Standard does not cover technical safety aspects.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | Foreword |
| 6 | Introduction |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Symbols |
| 9 | 4.1 Letters Table 1 — Letters 4.2 Superscripts |
| 10 | 5 Standard capacity 5.1 Basis for standard capacity date 5.1.1 The capacity of the dry cooler is dependent on 5.1.2 As dry coolers are usually designed to meet specific sets of operating conditions, this standard specifies 5.2 Standard conditions for dry cooler capacity 5.3 Operating conditions for the nominal air flow 6 Manufacturer’s data |
| 11 | 7 Measurements 7.1 Uncertainty of measurement |
| 12 | Table 2 — Uncertainty of measurement 7.2 Measurement criteria 7.2.1 Temperature measuring pints, liquid side 7.2.2 The measuring points, air side |
| 13 | 7.2.3 Pressure measuring points, liquid side 7.2.4 Liquid flow rate 8 Testing methods and equipment 8.1 General 8.2 Test principals 8.2.1 Test method for capacity 8.2.2 Test method for air volume flow 8.3 Testing equipment 8.3.1 Air side |
| 14 | 8.3.2 Liquid side 9 Test procedure 9.1 Physical arrangement 9.2 Capacity measurements 9.2.1 The measurement of the dry cooler capacity shall be carried out under steady-state conditions. Steady-state shall be reached a minimum of 30 min before testing commence 9.2.2 Steady-state conditions are assumed to exist when all changes and periodic fluctuations remain within the following 9.2.3 Test duration 9.2.4 Test conditions |
| 15 | Table 3 – Maximum allowable deviation of test conditions 9.2.5 Data to be recorded 9.3 Measurement of air flow rate and fan capacity 10 Capacity calculations |
| 16 | 11 Conversion to standard conditions 11.1 Capacity 11.1.1 Correction for atmospheric pressure 11.1.2 Single test 11.1.3 Duplicate tests 11.2 Liquid side pressure drop 11.2.1 Single test |
| 17 | 11.2.2 Duplicate tests 11.3 Nominal air flow 11.4 Nominal fan power consumption |
| 18 | 12 Test report |
| 19 | Annex A (normative) Flow meter method Figure A.1 — Flow meter method |
| 20 | Bibliography |
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