GB/T 26194-2026 Method of testing the performance of cool-storage systems English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 26194-2026
Method of testing the performance of cool-storage systems
蓄冷系统性能测试方法
Issue date: 2026-06-27 Implementation date: 2027-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Classification
5 Requirements
6 Instruments
7 Test methods
8 Test procedures
9 Data recording
10 Calculation of results
11 Test report
Annex A (informative) Examples of design day load profiles
Annex B (informative) Fluid flow measurement methods
Annex C (informative) Example diagrams of cool storage system equipment
Annex D (informative) Test report
Cool storage systems — Performance test methods
1 Scope
This document describes test methods for the cooling capacity and efficiency of cool storage systems.
This document is applicable to the testing of complete cool storage systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 2624 (all parts), Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full
GB/T 18517, Refrigeration terminology
GB/T 18660, Measurement of conductive liquid flow in closed conduits — Method using electromagnetic flowmeters
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 18517, as well as the following, apply.
3.1.1
cool storage system
A general term for cool storage devices used to meet all or part of the refrigeration load.
Note: The system consists of refrigeration units, cool storage media, cool storage devices or containers, heat rejection equipment or systems, and other auxiliary equipment, or is a subsystem of the overall refrigeration system.
3.1.2
cool storage device
A container and cool storage space for storing cooling capacity.
Note: Includes secondary refrigerants and auxiliary equipment such as heat exchangers, agitators, circulating pumps, flow regulators, valves and baffles.
3.1.3
cool storage cycle
An alternating process of charging and discharging cooling capacity completed in a cool storage device.
Note: In this process, the system starts and ends the cycle in the same state.
3.1.4
cool storage medium
The substance used in the cool storage device for storing cooling capacity.
3.1.5
secondary refrigerant
A fluid medium that transfers cooling capacity from one location to another.
3.1.6
fully charged condition
The state in which the cool storage device no longer increases its stored cooling capacity in accordance with design requirements.
Note: This state is reached when the system normally stops the cool storage cycle.
3.1.7
fully discharged condition
The state in which the cool storage device has no more usable cooling capacity that can be released from it.
3.1.8
cool storage capacity
The maximum amount of cooling capacity stored by the cool storage device for future use.
3.1.9
cool storage system capacity
The maximum amount of cooling capacity provided by the cool storage system relative to a specified design day load profile.
Note: Its value is determined by the cool storage system capacity test.
3.1.10
usable storage capacity
For a given cool storage cycle, the total cooling capacity released from the cool storage device when the discharge temperature is not higher than the maximum usable discharge temperature.
3.1.11
nominal storage capacity
The maximum cool storage capacity of the cool storage device under nominal operating conditions.
3.1.12
storage inventory
The usable cooling capacity stored in the cool storage device at any given time.
3.1.13
discharge capacity
The cool storage capacity of the cool storage device determined by the discharge test.
Note: This cooling capacity is equivalent to the usable storage capacity under fully discharged conditions as defined in the first item of 5.3 k)1).
3.1.14
peak discharge rate
The maximum rate at which the cool storage device releases cooling capacity.
3.1.15
cycle specific energy use
The ratio of the total electricity consumption (kWh) to the total cooling capacity supplied by the cool storage system (kWh) after one or more complete cool storage cycles.
Note: Total electricity consumption refers to all electrical energy input to the cool storage system under test conditions.
3.1.16
cool storage system efficiency
The ratio of the total cooling capacity supplied by the cool storage system (kWh) to the total electricity consumption (kWh) after one or more complete cool storage cycles.
Note: This is the reciprocal of the cycle specific energy use.
3.1.17
storage efficiency
The ratio of the discharge capacity to the charge capacity.
3.1.18
critical discharge point
The point on the load profile curve where the required discharge cooling capacity is greatest relative to the current storage inventory.
3.1.19
load profile
A general description of the cooling load over a period of time.
Note: The load curve covers at least the hourly cooling load for a complete cool storage cycle period. It includes the total hourly load, the cooling output of the refrigeration units and the cool storage devices, and the storage status of the cool storage devices. The load profile refers to the corresponding inlet temperature, outlet temperature and flow rate for each hourly load. Tables A.1 and A.2 list complete data for two examples of load profiles.
Standard
GB/T 26194-2026 Method of testing the performance of cool-storage systems (English)
Standard No.
GB/T 26194-2026
Status
to be valid
Language
English
File Format
PDF
Word Count
20000 words
Translation Price(USD)
600.0
Implemented on
2027-2-1
Delivery
via email in 1~8 business day
Detail of GB/T 26194-2026
Standard No.
GB/T 26194-2026
English Name
Method of testing the performance of cool-storage systems
GB/T 26194-2026 Method of testing the performance of cool-storage systems English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 26194-2026
Method of testing the performance of cool-storage systems
蓄冷系统性能测试方法
Issue date: 2026-06-27 Implementation date: 2027-05-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Classification
5 Requirements
6 Instruments
7 Test methods
8 Test procedures
9 Data recording
10 Calculation of results
11 Test report
Annex A (informative) Examples of design day load profiles
Annex B (informative) Fluid flow measurement methods
Annex C (informative) Example diagrams of cool storage system equipment
Annex D (informative) Test report
Cool storage systems — Performance test methods
1 Scope
This document describes test methods for the cooling capacity and efficiency of cool storage systems.
This document is applicable to the testing of complete cool storage systems.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 2624 (all parts), Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full
GB/T 18517, Refrigeration terminology
GB/T 18660, Measurement of conductive liquid flow in closed conduits — Method using electromagnetic flowmeters
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 18517, as well as the following, apply.
3.1.1
cool storage system
A general term for cool storage devices used to meet all or part of the refrigeration load.
Note: The system consists of refrigeration units, cool storage media, cool storage devices or containers, heat rejection equipment or systems, and other auxiliary equipment, or is a subsystem of the overall refrigeration system.
3.1.2
cool storage device
A container and cool storage space for storing cooling capacity.
Note: Includes secondary refrigerants and auxiliary equipment such as heat exchangers, agitators, circulating pumps, flow regulators, valves and baffles.
3.1.3
cool storage cycle
An alternating process of charging and discharging cooling capacity completed in a cool storage device.
Note: In this process, the system starts and ends the cycle in the same state.
3.1.4
cool storage medium
The substance used in the cool storage device for storing cooling capacity.
3.1.5
secondary refrigerant
A fluid medium that transfers cooling capacity from one location to another.
3.1.6
fully charged condition
The state in which the cool storage device no longer increases its stored cooling capacity in accordance with design requirements.
Note: This state is reached when the system normally stops the cool storage cycle.
3.1.7
fully discharged condition
The state in which the cool storage device has no more usable cooling capacity that can be released from it.
3.1.8
cool storage capacity
The maximum amount of cooling capacity stored by the cool storage device for future use.
3.1.9
cool storage system capacity
The maximum amount of cooling capacity provided by the cool storage system relative to a specified design day load profile.
Note: Its value is determined by the cool storage system capacity test.
3.1.10
usable storage capacity
For a given cool storage cycle, the total cooling capacity released from the cool storage device when the discharge temperature is not higher than the maximum usable discharge temperature.
3.1.11
nominal storage capacity
The maximum cool storage capacity of the cool storage device under nominal operating conditions.
3.1.12
storage inventory
The usable cooling capacity stored in the cool storage device at any given time.
3.1.13
discharge capacity
The cool storage capacity of the cool storage device determined by the discharge test.
Note: This cooling capacity is equivalent to the usable storage capacity under fully discharged conditions as defined in the first item of 5.3 k)1).
3.1.14
peak discharge rate
The maximum rate at which the cool storage device releases cooling capacity.
3.1.15
cycle specific energy use
The ratio of the total electricity consumption (kWh) to the total cooling capacity supplied by the cool storage system (kWh) after one or more complete cool storage cycles.
Note: Total electricity consumption refers to all electrical energy input to the cool storage system under test conditions.
3.1.16
cool storage system efficiency
The ratio of the total cooling capacity supplied by the cool storage system (kWh) to the total electricity consumption (kWh) after one or more complete cool storage cycles.
Note: This is the reciprocal of the cycle specific energy use.
3.1.17
storage efficiency
The ratio of the discharge capacity to the charge capacity.
3.1.18
critical discharge point
The point on the load profile curve where the required discharge cooling capacity is greatest relative to the current storage inventory.
3.1.19
load profile
A general description of the cooling load over a period of time.
Note: The load curve covers at least the hourly cooling load for a complete cool storage cycle period. It includes the total hourly load, the cooling output of the refrigeration units and the cool storage devices, and the storage status of the cool storage devices. The load profile refers to the corresponding inlet temperature, outlet temperature and flow rate for each hourly load. Tables A.1 and A.2 list complete data for two examples of load profiles.
