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BS EN 50600-4-7:2020

BS EN 50600-4-7:2020

$102.76

Information technology. Data centre facilities and infrastructures – Cooling Efficiency Ratio

Published By Publication Date Number of Pages
BSI 2020 22
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This document specifies the Cooling Efficiency Ratio (CER) as a Key Performance Indicator (KPI) to quantify the efficient use of energy to control the temperature of the spaces within the data centre.

This document:

  1. defines the Cooling Efficiency Ratio (CER) of a data centre;

  2. describes the relationship of this KPI to a data centre’s infrastructure, information technology equipment and information technology operations;

  3. defines the measurement, the calculation and the reporting of the parameter;

  4. provides information on the correct interpretation of the CER.

Annex A describes the correlation of CER and other KPIs.

Annex B provides examples of the application of CER.

Annex C introduces the parameters that affect CER.

Annex D describes requirements and recommendations for derivatives of KPIs associated with CER.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
2 Normative references
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.2 Abbreviations
10 3.3 Symbols
4 Applicable area of the data centre
5 Determination of Cooling Efficiency Ratio
5.1 Definition of CER
11 5.2 Determining total energy use in multi-purpose buildings using CER
12 6 Measurement of Cooling Efficiency Ratio
6.1 General
6.2 Requirements
6.3 Recommendations
7 Reporting of CER
7.1 General
7.2 Requirements
13 7.3 Recommendations
14 Annex A (informative)Correlation of CER and other KPIs
A.1 General
A.2 Discussion of existing terms for performance rating
15 Annex B (normative)Examples of usage of CER
B.1 Determining PUE in data centres with different computer rooms using CER
B.2 Determining CER in cases of energy re-use
16 Annex C (informative)Parameters influencing CER
C.1 Adjustment of temperature
C.2 Demand of cooling
17 Annex D (normative)Derivatives of CER
D.1 Interim Cooling Efficiency Ratio (iCER)
D.2 Determination of Cooling Performance Ratio
D.2.1 Calculation of CPR
D.2.2 Measurement of CPR
D.2.2.1 Requirements
D.2.2.2 Recommendations
D.2.3 Reporting of CPR
D.2.3.1 Requirements
18 D.2.3.2 Recommendations
D.2.4 Using CPR in Capacity Management
D.3 Determination of Cooling Efficiency Factor (CEF)
D.3.1 Calculation of CEF
D.3.2 Partial CEF (pCEF)
D.3.3 Example

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BS EN 50600-4-7:2020
$102.76