AS/NZS 4776.1.2:2008

1 - AS/NZS 4776.1.2:2008 LIQUID-CHILLING PACKAGES USING THE VAPOUR COMPRESSION CYCLE - METHOD OF RATING AND TESTING FOR...
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 OBJECTIVE
6 - 3 NORMATIVE REFERENCE
6 - 4 DEFINITIONS
6 - 5 BASIC PRINCIPLES
6 - 5.1 Cooling capacity
7 - 5.2 Water-cooled condenser heat rejection
7 - 6 TEST METHOD
7 - 6.1 General
7 - 6.2 Conditions of heat transfer surfaces
7 - 6.3 Measurements
7 - 6.4 Units with integral pumps
8 - 7 TEST VERIFICATION
8 - 7.1 General
8 - 7.2 Heat balance substantiating test (calculation of the heat balance)
8 - 7.3 Percentage heat balance
8 - 8 INSTRUMENTATION-ACCURACY
9 - 9 TEST PROCEDURE
9 - 9.1 General
9 - 9.2 Steady-state conditions
9 - 9.3 Output measurement of cooling capacity and power input
10 - 9.4 Calculation of results
10 - 9.4.1 Cooling capacity and heat rejection capacity
10 - 9.4.2 Power consumption
10 - 10 DATA TO BE RECORDED
10 - 10.1 Measurement data
11 - 10.2 Auxiliary information to be recorded
11 - 11 FOULING CONSIDERATIONS FOR TESTING
12 - 12 VERIFICATION TEST TOLERANCE ON HEAT BALANCE
13 - APPENDIX A - CONCURRENT REDUNDANT VERIFICATION TEST FOR AIR-COOLED OR EVAPORATIVELY COOLED CONDENSER UNITS
13 - A1 GENERAL
13 - A2 CAPACITY CALCULATION METHOD
13 - A3 POWER CALCULATION METHOD
13 - A4 EFFICIENCY CALCULATION METHOD
14 - APPENDIX B - METHOD FOR SIMULATING THE FOULING FACTOR ALLOWANCE
14 - B1 SCOPE
14 - B2 FOULING ALLOWANCE PROCEDURE
14 - B2.1 Derivation of log mean temperature difference (LMTD)
14 - B2.2 Derivation of incremental log mean temperature difference (ILMTD)
15 - B2.3 Example-Condenser fouling
15 - B3 SYMBOLS AND SUBSCRIPTS

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.

This Standard covers liquid-chilling packages within the scope of AS/NZS 4776.1.1.

First published as AS/NZS 4476.1.2:2008.