GB/T 47007-2026 Energy efficiency test and evaluation regulation for plate heat exchangers English, Anglais, Englisch, Inglés, えいご
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ICS
CCS
National Standard of the People's Republic of China
GB/T 47007-2026
Energy efficiency test and evaluation regulation for plate heat exchangers
板式热交换器能效测试与评价规则
Issue date: 2026-01-28 Implementation date: 2027-01-28
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 and Definitions
4 Symbols and Units
5 Basic Requirements
6 Preparation of Test Product
7 Performance Testing
8 Energy Efficiency Evaluation
9 Test and Evaluation Report
Annex A (Informative) Example of Energy Efficiency Test and Evaluation Report
Plate heat exchangers – Energy efficiency testing and evaluation rules
1 Scope
This document establishes the test system and test procedure for water water energy efficiency testing of plate heat exchangers, and specifies requirements for the test platform, measurement items, data processing, energy efficiency calculation and evaluation, as well as test and evaluation reports for water water energy efficiency testing of plate heat exchangers.
This document applies to the energy efficiency testing and evaluation of gasketed plate heat exchangers (including semi welded gasketed plate heat exchangers) and brazed plate heat exchanger products under liquid liquid working conditions.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative reference. For dated references, only the edition cited applies. For undated references, the latest edition (including all amendments) applies.
GB/T 27698.1 Test method for performance of heat exchangers and heat transfer elements – Part 1: General requirements
GB/T 27698.2 Test method for performance of heat exchangers and heat transfer elements – Part 2: Heat exchangers
GB/T 27698.3 Test method for performance of heat exchangers and heat transfer elements – Part 3: Heat transfer elements
GB/T 27698.4 Test method for performance of heat exchangers and heat transfer elements –
Part 4: Determination of noise from air coolers
NB/T 47004.1 Plate heat exchangers – Part 1: Gasketed plate heat exchangers
NB/T 47045 Brazed plate heat exchangers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 27698.1 to GB/T 27698.4, NB/T 47004.1, NB/T 47045 and the following apply.
3.1 energy efficiency index (EEI)
A parameter used to determine the energy efficiency of a plate heat exchanger, which integrates the heat transfer and flow resistance performance of the plate heat exchanger, is based on the first law of thermodynamics, and is determined by methods such as data collation and statistics from testing.
Note: The English abbreviation and parameter symbol is EEI.
4 Symbols and units
The symbols and units listed in Table 1 apply to this document.
5 Basic requirements
5.1 Test platform
5.1.1 The platform for conducting energy efficiency testing of plate heat exchangers shall have a fixed test site and supporting conditions such as water, electricity, heat source and cold source. The test system shall comply with the requirements of GB/T 27698.1. The test fluid shall be clean fresh water, and the test shall be carried out under water water, non phase change, counterflow test conditions. The flow rates of the cold and hot fluids in the test system shall meet the flow rate range requirements for plate heat exchanger testing. The test conditions shall be adjustable and capable of remaining stable, and the test data shall be accurate, reliable, and capable of being automatically collected and stored.
5.1.2 The accuracy of pressure and differential pressure measuring instruments shall be no less than Class 0.2; the accuracy of flow measuring instruments shall be no less than Class 0.5; the tolerance of fluid temperature measuring instruments shall not exceed ±0.5 °C. Measuring instruments shall be used within their verification (calibration) validity period.
5.2 Testing and evaluation body
A body engaged in the energy efficiency testing and evaluation of plate heat exchangers shall have the capability to verify the structural parameters of plate heat exchanger plates and the capability to conduct energy efficiency testing and evaluation. It shall be equipped with the instruments, equipment and personnel necessary for heat exchanger energy efficiency testing and evaluation, strictly control the quality of energy efficiency testing, and be responsible for the accuracy, impartiality and traceability of test results.
6 Preparation of test product
6.1 The test product shall comply with the requirements of the corresponding product standards. To enable the test results to reflect the actual operating characteristics of the heat exchanger, the number of plates in the plate heat exchanger under test shall be no less than 17.
6.2 When conducting energy efficiency testing and evaluation of a plate heat exchanger, the product model and at least the following parameters shall be included:
a)Plate corrugation parameters (corrugation angle, corrugation depth, corrugation pitch, mixing angle and mixing ratio);
b)Plate geometric dimensions [length, width, port diameter (or equivalent port diameter), longitudinal and transverse centre distances];
c) Single plate heat transfer area;
d) Plate spacing;
e) Plate thickness;
f) Flow arrangement (single side flow or diagonal flow);
g) Plate material;
h) Flow cross sectional area;
i) Number of plates;
j) Pass arrangement.
6.3 When the product model or any of the parameters in 6.2 a) to f) changes, the energy efficiency testing and evaluation shall be repeated.
7 Performance testing
7.1 Test method
