AS/NZS 4776.1.2:2008

Table of Contents

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

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.

Scope

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

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
Pages
ISBN
Committee	ME-086
Supersedes	DR 07277