GB/T 47007-2026Energy efficiency test and evaluation rules for plate heat exchangers (English PDF)

1 Scope

GB/T 47007-2026 is the Chinese national standard covering the efficiency of a plate heat exchanger - the heat transferred against the pressure drop it costs, which is the whole trade-off of the device, measured under defined conditions and turned into a rating. First edition, issued and in force on 28 January 2026, and it belongs with GB/T 14845-2026 on the titanium sheet these are pressed from. It was issued on 28 January 2026 and has been in force since 28 January 2026, as a first edition. The document is under the responsibility of the Standardization Administration of China. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document establishes the test system and procedures for energy efficiency testing of plate heat exchangers under water-to-water operating conditions. It specifies the requirements for the test platform, measurement items, data processing, energy efficiency calculation and evaluation, as well as the test and evaluation report for such testing. This document applies to the energy efficiency testing and evaluation of detachable plate heat exchangers (including semi-welded detachable plate heat exchangers) and brazed plate heat exchangers operating under liquid-liquid conditions.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 27698.1, Test methods for the performance of heat exchangers and heat exchange elements -- Part

3 Terms and definitions

For the purposes of this document, the terms and definitions defined in GB/T 27698.1~27698.4, NB/T 47004.1, NB/T 47045 as well as the followings apply.

3.1 energy efficiency index EEI Parameters used to assess the energy efficiency of plate heat exchangers, determined by integrating their heat transfer and flow resistance characteristics - and based on the First Law of Thermodynamics - through methods such as the mathematical and statistical analysis of test data. NOTE. The English abbreviation and parameter symbol are EEI.

4 Symbols and units

The symbols and units listed in Table 1 are applicable to this document. Table 1 -- Symbols and units

6 Test product preparation

6.1 The test product shall comply with the requirements of the applicable product standards. To ensure that the test results accurately reflect the actual operating characteristics of the heat exchanger, the number of plates in the plate heat exchanger under test shall be no fewer than 17.

6.2 When conducting energy efficiency testing and evaluation for plate heat exchangers, the assessment shall include, at a minimum, the product model and the following parameters.

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), and longitudinal and transverse center distances];

c) Single plate heat transfer area;

d) Plate spacing;

e) Plate thickness;

f) Flow configuration (single-pass flow or diagonal flow);

g) Plate material;

h) Flow channel cross-sectional area;

i) Number of plates;

j) Flow arrangement.