Prescribes the method of testing liquid-chilling packages using the vapour compression cycle to determine the capacity, power and efficiency of equipment under a specific set of conditions.
Table of contents
Header
About this publication
Preface
1 Scope
2 Objective
3 Normative reference
4 Definitions
5 Basic principles
5.1 Cooling capacity
5.2 Water-cooled condenser heat rejection
6 Test method
6.1 General
6.2 Conditions of heat transfer surfaces
6.3 Measurements
6.4 Units with integral pumps
7 Test verification
7.1 General
7.2 Heat balance substantiating test (calculation of the heat balance)
7.3 Percentage heat balance
8 Instrumentation—accuracy
9 Test procedure
9.1 General
9.2 Steady-state conditions
9.3 Output measurement of cooling capacity and power input
9.4 Calculation of results
9.4.1 Cooling capacity and heat rejection capacity
9.4.2 Power consumption
10 Data to be recorded
10.1 Measurement data
10.2 Auxiliary information to be recorded
11 Fouling considerations for testing
12 Verification test tolerance on heat balance
Appendix A
A1 General
A2 Capacity calculation method
A3 Power calculation method
A4 Efficiency calculation method
Appendix B
B1 Scope
B2 Fouling allowance procedure
B2.1 Derivation of log mean temperature difference (LMTD)
B2.2 Derivation of incremental log mean temperature difference (ILMTD)
B2.3 Example—Condenser fouling
B3 Symbols and subscripts
Cited references in this standard
Content history
DR 07277
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