GB/T 2589-2020 English PDF (GBT2589-2020)

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GB/T 2589-2020: General rules for calculation of the comprehensive energy consumption
GB/T 2589-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
F 01
Replacing GB/T 2589-2008
General Rules for Calculation of the Comprehensive
Energy Consumption
ISSUED ON: SEPTEMBER 29, 2020
IMPLEMENTED ON: APRIL 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Calculation Principles ... 6
5 Boundary Division ... 7
6 Calculation Range ... 8
7 Calculation Methods ... 8
8 Requirements for Conversion to Standard Coal... 10
Appendix A (Informative) Standard Coal Coefficient of Various Energies
(Reference Value) ... 11
Appendix B (Informative) Standard Coal Coefficient of Main Energy-Consumed
Medium (by Energy Source Equivalent Value) (Reference Value) ... 13
General Rules for Calculation of the Comprehensive
Energy Consumption
1 Scope
This Standard specifies the calculation principles, boundary division, calculation range,
calculation method, and requirements for conversion to standard coal of the
comprehensive energy consumption.
This Standard is applicable to the calculation of energy consumption indicators for
energy consumption unit (including secondary energy consumption unit or their
components).
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
GB/T 3102.4 Quantities and Units - Heat
GB/T 3484 The General Principles for Energy Balance of Industrial Enterprise
GB 17167 General Principle for Equipping and Managing of the Measuring
Instrument of Energy in Organization of Energy Using
GB/T 28749 The Method of Drawing Energy Balance Network Diagram for
Enterprises
GB/T 28751 The Method of Editing Energy Balance Table for Enterprises
3 Terms and Definitions
For the purpose of this document, the following terms and definitions apply.
3.1 Energy-consumed medium
The working substance that is consumed in the production process, but not used as a
NOTE 2: For energy consumption unit that takes raw material processing and other operations
as the energy consumption assessment object, the concept of comprehensive energy
consumption for unit operation capacity is also included in this definition.
NOTE 3: According to different product output (operation capacity, workload, service capacity)
dimensions, the unit of comprehensive energy consumption for unit output of product may
include: kgce/kg, kgce/m3, etc.
3.8 Comparable comprehensive energy consumption for unit output of product
In order to achieve comprehensive energy consumption for unit output of product
comparable among the same product in the same industry, the comprehensive energy
consumption for unit output of product that is calculated by revising the main factors
affecting product energy consumption.
NOTE: According to different product output (operation capacity, workload, service capacity)
dimensions, the unit of comparable comprehensive energy consumption for unit output of
product may include: kgce/kg, and kgce/m3, etc.
3.9 Standard coal coefficient
The quantity of standard coal that is converted by the physical quantity of energy unit
or the physical quantity of energy consumed by producing the unit energy-consumed
medium.
NOTE: According to the different physical quantities of energy, the unit of the standard coal
coefficient may include: kgce/kg, kgce/m3, [(kgce/(kW·h)], and kgce/MJ, etc.
4 Calculation Principles
4.1 Compliance. The types of energy included in the calculation of comprehensive
energy consumption shall meet the requirements of national energy statistics.
4.2 Completeness. The calculation of comprehensive energy consumption shall
include all energy and energy-consuming medium actually consumed in the production
process; and shall not be omitted or recalculated.
4.3 Accuracy. The calculation of comprehensive energy consumption shall accurately
reflect the true, measurable and verifiable energy consumption of the energy
consumption unit.
4.4 Consistency. When calculating the comprehensive energy consumption during the
statistical reporting period, the boundary division and calculation methods shall be
consistent.
5.4 If the energy-consuming units are located in two or more secondary energy
consumption units or their components in different geographical locations, then
multiple boundaries may be delineated as needed to facilitate the calculation of
comprehensive energy consumption by energy consumption units.
6 Calculation Range
6.1 The calculation range of comprehensive energy consumption includes the actual
consumption of various energy such as primary energy and secondary energy;
includes the energy used as raw materials. The actual consumption of various energy
may be calculated in accordance with GB/T 3484, GB/T 28749, GB/T 28751, etc.
6.2 The energy consumed by the energy-consumed medium shall be included in the
calculation of comprehensive energy consumption. Energy-consumed medium mainly
include fresh water, softened water, compressed air, oxygen, and nitrogen, etc.
6.3 The loss of energy and energy-consumed medium in the process of internal
storage, conversion, and distribution (including export) of energy consumption unit
shall be included in the comprehensive energy consumption.
6.4 The raw data that can be used to calculate the comprehensive energy consumption
include the reading records of energy measuring instruments, the data records of the
online energy consumption monitoring system, the energy statistics reports, the
invoices, and the energy bills, etc. The equipment of energy measuring instruments
shall meet the requirements of GB 17167.
7 Calculation Methods
7.1 The comprehensive energy consumption is calculated according to Formula (1):
Where:
E – comprehensive energy consumption;
n – the number of the consumed energy types;
Ei – the actually consumed quantity of the ith energy (including the quantity of energy
consumed by the energy-consumed medium) during the production and/or service
activities;
ki – the standard coal coefficient of the ith energy.
NOTE: The comparable comprehensive energy consumption for unit output of product is mainly
used to investigate the energy efficiency or energy intensity of the energy consumption unit.
8 Requirements for Conversion to Standard Coal
8.1 When calculating the comprehensive energy consumption, various energy sources
shall be converted into standard coal.
8.2 The actual fuel energy consumption shall be converted into standard coal quantity
based on the calculation basis of its received base low calorific value. Convert
according to international table calorie specified in GB/T3102.4, the fuel whose low
calorific value is equal to 29307.6 kilojoules (kJ) [7000 kilocalories (kcal)] is called 1
kilogram of standard coal (1kgce).
NOTE: According to the calory at 20°C, the low calorific value of 1 kg of standard coal (1kgce)
is equal to 29271.2 kilojoules (kJ). According to the calory at 15°C, the low calorific value of 1
kg of standard coal (1kgce) is equal to 29298.5 kilojoules (kJ).
8.3 The low calorific value of energy and the energy consumption of energy-consumed