BS EN 1118:1999:2003 Edition
$167.15
Heat exchangers. Refrigerant cooled liquid coolers. Test methods for establishing the performance
| Published By | Publication Date | Number of Pages |
| BSI | 2003 | 34 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | National foreword |
| 4 | Foreword Foreword to amendment A1 Contents |
| 5 | Introduction 1 Scope 1.1 This European Standard applies to series produced liquid coolers which operate with a (primar… 1.2 This standard deals with the following types of series produced liquid coolers for refrigerat… 2 Normative references 3 Definitions 3.1 liquid cooler (refrigerant cooled) 3.2 shell and tube type 3.3 co�axial type 3.4 plate type |
| 6 | 3.5 working fluids 3.5.1 refrigerant (primary) 3.5.2 liquid 3.6 capacity 3.6.1 capacity (liquid side) 3.6.2 capacity (refrigerant side) 3.7 temperatures 3.7.1 liquid inlet temperature 3.7.2 liquid outlet temperature 3.7.3 ambient air temperature 3.7.4 evaporating temperature 3.7.5 vapour outlet temperature 3.7.6 subcooled refrigerant temperature |
| 7 | 3.7.8 bubble point temperature 3.8 temperature differences 3.8.1 inlet temperature difference 3.8.2 superheating 3.8.3 subcooling 3.8.4 liquid temperature difference 3.8.5 high glide 3.9 liquid pressure 3.9.1 liquid inlet pressure 3.9.2 liquid outlet pressure 3.10 operation 3.10.1 direct expansion operation 3.10.2 flooded operation 3.10.3 operation with liquid feed by gravity |
| 8 | 3.10.4 operation with liquid overfeed by pump circulation 3.11 refrigerant enthalpies 3.11.1 refrigerant inlet specific enthalpy 3.11.2 refrigerant outlet specific enthalpy 3.11.3 specific vaporization enthalpy 3.12 refrigerant recirculation rate 3.13 fouling resistance 3.14 set of tests 3.15 oil content |
| 9 | 4 Symbols 4.1 Letters |
| 10 | 4.2 Subscripts 4.3 Superscripts 5 Standard capacity 5.1 Basis for standard capacity data 5.2 Standard capacity conditions |
| 11 | 6 Manufacturer’s data |
| 12 | 7 Measurements 7.1 Uncertainty of measurements 7.2 Measurement criteria |
| 14 | 8 Testing methods and equipment 8.1 Testing methods 8.2 Testing equipment |
| 15 | 9 Test procedures 9.1 Physical arrangement 9.2 Capacity measurements |
| 17 | 10 Capacity calculations 10.1 Primary method |
| 18 | 10.2 Confirming method 10.3 Relative deviation 10.4 Recirculation rate for pump circulation 11 Conversion to standard conditions 11.1 Capacity |
| 19 | 11.2 Liquid side pressure drop 12 Test report |
| 20 | Annex A (normative) Circuit diagrams |
| 22 | Annex B (normative) Direct expansion operation B.1 Correction for B.2 Correction for B.3 Correction for |
| 23 | Annex C (normative) Flooded operation C.1 Correction for refrigerant liquid level C.2 Correction for |
| 24 | C.3 Correction for |
| 25 | Annex D (normative) Operation with liquid feed by gravity D.1 Correction for refrigerant liquid level D.2 Correction for |
| 26 | D.3 Correction for |
| 27 | Annex E (normative) Operation with liquid overfeed by pump circulation E.1 Correction for refrigerant liquid level E.2 Correction for |
| 28 | E.3 Correction for |
| 29 | Annex F (informative) Basic illustrations F.1 For direct expansion operation Figure F.1 Superheating and capacity Figure F.2 Conversion to standard conditions |
| 30 | F.2 For operation with liquid overfeed by pump circulation Figure F.3 Definition of recirculation rate Annex G (informative) Flow diagrams for conversion to standard conditions |
| 33 | Annex H (informative) Oil content measurement procedure Annex I (informative) Bibliography |
