27 - ENERGY AND HEAT TRANSFER ENGINEERING

This document specifies the general principles and basic requirements of design for small hydropower (SHP) projects up to 30 MWe, mainly including hydrology, geology, energy calculations, project layout, hydraulics, electromechanical equipment selection, construction planning, project cost estimates, economic appraisal, social and environmental assessments. Application of this document is intended to be site specific, with the principles and requirements of design applied in accordance with the ...view more

2021-01-15 - JE- TC - Corrects the wording related to Formula (6) in 5.5.1.2.1.4, 5.5.1.2.2.3, 5.5.1.3.3, 5.5.1.4.3, 5.12.2.1.3, 5.12.2.2.3 and 5.19.20.4.3 + Consolidated text not in XML, as mother standard EN 12514:2020 was not prepared in XML

This document gives guidelines for establishing, implementing, maintaining and improving a common energy management system (EnMS) for multiple organizations. This document follows the general structure used in ISO 50001:2018.

This document specifies a periodic heat method for measurement of the thermal diffusivity of thermal insulation material in the shape of a flat plate.

IEC 61215-2:2021 is available as IEC 61215-2:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61215-2:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. This document is intended to apply to all terrestrial flat plate module materials such as crystalline silicon module types as well as thin-fi...view more

IEC 61215-1-1:2021 is available as IEC 61215-1-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61215-1-1:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they are...view more

IEC 61215-1:2021 is available as IEC 61215-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61215-1:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they are opera...view more

This document specifies the format of binary list-mode data at the output of digital data acquisition devices used for the detection and measurement of radiation. Such data acquisition devices may employ digital signal processors (DSP) and field-programmable gate arrays (FPGA) in combination with memory and a communication interface with a computer.

IEC 61215-1-4:2021 is available as IEC 61215-1-4:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61215-1-4:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they are ...view more

IEC 61215-1-3:2021 is available as IEC 61215-1-3:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61215-1-3:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they are...view more

This document specifies a method for the determination of the isotopic and elemental uranium and plutonium concentrations of nuclear materials in nitric acid solutions by thermal-ionization mass spectrometry.
The method applies to uranium and plutonium isotope composition and concentration measurement of irradiated Magnox and light water reactor fuels (boiling water reactor or pressurized water reactor), in final products at spent-fuel reprocessing plants, and in feed and products of MOX and ur...view more

This document specifies gas leakage test criteria and test methods for demonstrating that packages used to transport radioactive materials comply with the package containment requirements defined in the International Atomic Energy Agency (IAEA) Regulations for the Safe Transport of Radioactive Material for:
— design verification;
— fabrication verification;
— preshipment verification;
— periodic verification;
— maintenance verification.
This document describes a method for relating permiss...view more

This document specifies a method of determining the apparent density and tap density of free-flowing uranium dioxide (UO2) powder which will be used for pelleting and sintering of UO2 pellets as a nuclear fuel.
This method can be used for different UO2 powder types including grains, granules, spheres or other kinds of particles. The method can also be applied to other fuel powders as PuO2, ThO2 and powder mixtures as UO2-PuO2 and UO2-Gd2O3.
This document is based on the principle of using a fl...view more

This document specifies the dissolution of powder samples of plutonium oxide for subsequent determination of elemental concentration and isotopic composition.

This document describes the ceramographic preparation of uranium dioxide (UO2) sintered pellets for qualitative and quantitative microstructure examinations.
These examinations can be carried out before and after thermal or chemical etching.
They enable
— observations of fissures, inter- or intra-granular pores and inclusions, and
— measurement of pore and grain size and measurement of pore and grain size distributions.
The measurement of average grain size can be carried out using a classi...view more

This document specifies the dissolution of samples consisting of MOX pellets or powders to provide suitable aliquots for subsequent analysis of elemental concentration and isotopic composition.

This document specifies an analytical method by spectrophotometry, for determining the plutonium concentration in nitric acid solutions, with spectrophotometer implemented in hot cell and glove box allowing the analysis of high activity solutions. Commonly, the method is applicable, without interference, even in the presence of numerous cations, for a plutonium concentration higher than 0,5 mg·l−1 in the original sample with a standard uncertainty, with coverage factor k = 1, less than 5 %.
The...view more

This document determines the fuel quality classes and specifications of graded wood chips. This document covers only wood chips produced from the following raw materials (see ISO 17225-1:2021, Table 1): 1.1 Forest, plantation and other virgin wood; 1.2 By-products and residues from wood processing industry; 1.3.1 Chemically untreated used wood. This document covers only wood chips, which are produced with sharp tools, and does not cover hog fuel, which is produced with blunt tools.

This document determines the fuel quality classes and specifications of graded wood briquettes. This document covers only wood briquettes produced from the following raw materials (see ISO 17225‑1: 2021, Table 1): 1.1 Forest, plantation and other virgin wood 1.2 By-products and residues from wood processing industry 1.3.1 Chemically untreated used wood NOTE Thermally treated biomass briquettes (e.g. torrefied briquettes) are not included in the scope of this document.

IEC TR 63226:2021 is intended for use as guidance for reducing fire risks in general and for site-specific needs for buildings with PV systems. In addition to the general recommendations, technical, installation, and maintenance measures can be selected to reach the intended safety level of the PV system and building, depending on the results of a risk assessment. This document contains general information about building related risks and includes measures for reducing those risks. These measure...view more

This document specifies requirements for electrically heated shell boilers manufactured from stainless steel specifically dedicated for generating steam for sterilizers and disinfectors.
This document covers only boilers that are heated by immersion heaters and which have a maximum allowable pressure (PS) of not greater than 6 bar, a maximum volume (V) of 1 000 litres and a product of PS ∙ V not greater than 3 000 bar ∙ l.

This International Standard specifies two methods for the determination of the biomass content in solid
recovered fuels: the selective dissolution and the 14C content method. The standard provides the
criteria for choosing the more appropriate method and some examples of application.

This document defines a methodology for determining and assessing the energy efficiency of Waste Water Treatment Plants (WWTP). The methodology aims at describing, in a systematic way, the various steps required to establish the Water Treatment Energy Index (WTEI) of a particular WWTP.
The methodology includes the classification of WWTPs in different types, identification of different stages of treatment, identification of key performance indicators (KPIs), overview of existing energy monitorin...view more

IEC 61215-1-2:2021 is available as IEC 61215-1-2:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61215-1-2:2021 lays down requirements for the design qualification of terrestrial photovoltaic modules suitable for long-term operation in open-air climates. The useful service life of modules so qualified will depend on their design, their environment and the conditions under which they ...view more

IEC TS 62862-2-1:2021 defines the requirements and the test methods for the characterization of thermal energy storage (TES) systems. This document contains the information necessary for determining the performance and functional characteristics of active direct and indirect thermal energy storage systems based on sensible heat in solar thermal power plants using parabolic-trough collector, Fresnel collector or tower central receiver technology with liquid storage media.
This document includes ...view more

IEC TR 63335:2021 identifies a number of issues of particular importance to light water Small Modular Reactors (SMRs), which are not currently adequately addressed by existing IEC SC 45A standards, and that could be considered when revising existing publications or that could be the object of new work item proposals. Whether each of these issues will indeed be addressed, and if so in which publication, will be the decision of each SC 45A working group. Though there are a number of advanced Gener...view more

IEC TS 63156:2021 describes the procedure for evaluating the energy conversion performance of stand-alone or grid-connected power conversion equipment (PCE) used in PV systems. This procedure includes the calculation of inverter performance to anticipate the energy yield of PV systems. This evaluation method is based on standard power efficiency calculation procedures for PCE found in IEC 61683 and IEC 62891, but provides additional methods for evaluating the expected overall energy efficiency f...view more

IEC 62372:2021 is applicable to housed scintillators for registration and spectrometry of alpha-, beta-, gamma-, X-ray and neutron radiation. This document specifies the requirements for the testing equipment and test methods of the basic parameters, of housed scintillators, such as:
- the direct method is applicable to measure the light output of housed scintillators based on scintillation material. The housed scintillators certified by this method can be used as working standard of housed sci...view more

The document specifies test conditions for determining the seasonal performance characteristics of air source heat pump water heaters for space heating with electrically driven compressors with or without supplementary heater. The purpose of this document is to rate performance of the heat pump water heaters for space heating with no operation of any supplementary heater. In the case of heat pump water heaters for space heating consisting of several parts with refrigerant or water connections, t...view more

IEC 62787:2021 specifies the minimum requirements for the qualification of concentrator photovoltaic (CPV) cells and Cell on Carrier (CoC) assemblies for incorporation into CPV receivers, modules and systems. The object of this qualification standard is to determine the optoelectronic, mechanical, thermal, and processing characteristics of CPV cells and CoCs to show that they are capable of withstanding assembly processes and CPV application environments. The qualification tests of this document...view more

IEC 60987:2021 provides requirements and recommendations for the hardware aspects of I&C systems whatever the technology and applies for all safety classes in a graded manner (as defined by IEC 61513). The requirements defined within this document guide, in particular, the selection of pre-existing components, hardware aspects of system detailed design and implementation and equipment manufacturing.
This third edition cancels and replaces the second edition published in 2007. This edition inclu...view more

TAN - // IEC Corrigendum

IEC TS 62282-9-102:2021 provides a set of specific rules, requirements and guidelines (i.e. so-called product category rules (PCR) according to ISO 14025 and thus in line with ISO 14040 and ISO 14044) for characterizing the environmental performance of stationary fuel cell combined heat and power (CHP) systems, and alternative systems for residential applications based on life cycle thinking primarily for communication to consumers.
This document covers stationary fuel cell CHP systems and alte...view more

IEC PAS 63312:2021 deals with the general requirements, classification and technical requirements, installation and commissioning requirements, inspection and maintenance requirements, test methods and requirements of radiant energy sensing flame detectors (including IR, UV, visible light, and imaging-based flame detectors).
This PAS is applicable to the type selection, design, installation, commissioning, inspection, maintenance and acceptance of the radiant energy sensing flame detectors, whi...view more

This document specifies minimum nuclear criticality safety training requirements for operations staff, operations supervisors, and management. This document is applicable to areas, processes or facilities containing quantities of fissile material for which nuclear criticality safety assessment is required as defined in ISO 1709. This document is not applicable to the transport of fissile materials outside the boundaries of nuclear establishments.

This document defines the minimum requirements to ensure the interoperability of public hydrogen refuelling points including refuelling protocols that dispense gaseous hydrogen to road vehicles (e.g. Fuel Cell Electric Vehicles) comply with applicable regulations.
The safety and performance requirements for the entire hydrogen refuelling station (HRS), addressed in accordance with existing relevant European and national legislation, are not included in this document.
NOTE   Guidance on considera...view more

IEC/TS 62727:2012(E) provides guidelines for the parameters to be specified for solar trackers for photovoltaic systems and provides recommendations for measurement techniques. The purpose of this test specification is to define the performance characteristics of trackers and describe the methods to calculate and/or measure critical parameters. This specification provides industry-wide definitions and parameters for solar trackers. Keywords: solar photovoltaic energy, solar trackers

This document specifies basket heating tests for the characterization of self-heating properties of solid biofuel pellets. This document includes: a) a compilation of basket heating test methods; b) guidance on the applicability and use of basket heating tests for solid biofuel pellets; c) information on the application of basket heating test data for calculations of critical conditions in storages. Data on spontaneous heat generation determined using this document is only associated with the sp...view more

This part of IEC 60904 describes procedures for the measurement of current-voltage
characteristics (I-V curves) of photovoltaic (PV) devices in natural or simulated sunlight. These
procedures are applicable to a single PV solar cell, a sub-assembly of PV solar cells, or a PV
module. They are applicable to single-junction mono-facial PV devices. For other device types,
reference is made to the respective documents, in particular for multi-junction devices to
IEC 60904-1-1 and for bifacial de...view more

This document covers the requirements for the design, installation, operation, maintenance and the safety of Household Biogas Systems (HBSs), producing biogas in an amount equivalent to an installation capacity of less than 100 MWh per year. The document applies to HBSs comprising of pipeline and equipment with pressure levels of less than 5 kPa. Any equipment or appliances connected to an HBS or utilizing the biogas energy of an HBS are not a part of the scope of this document.

This document provides a methodology for determining the energy efficiency class of electrical
accessories, to enable the system designer to determine the most efficient components for an
electrical installation, also considering all functionalities.
NOTE Functionalities are for example: wireless communication, network connectivity, timer, energy monitoring.
This methodology is based on the energy consumption, taking into account the individual
functions of the accessory.
The energy effici...view more

No scope available

IEC standards for photovoltaic devices require the use of specific classes of solar simulators
deemed appropriate for specific tests. Solar simulators can be either used for performance
measurements of PV devices or endurance irradiation tests. This part of IEC 60904 provides
the definitions of and means for determining simulator classifications at the required
irradiance levels used for electrical stabilization and characterisation of PV devices.
This document is applicable for solar simul...view more

This part of IEC 60904 describes the procedures used to measure the dependence of any
electrical parameter (Y) of a photovoltaic (PV) device with respect to a test parameter (X) and
to determine the degree at which this dependence is close to an ideal linear (straight-line)
function. It also gives guidance on how to consider deviations from the ideal linear
dependence and in general on how to deal with non-linearities of PV device electrical
parameters. Typical device parameters are the sho...view more

This part of IEC 62566 provides requirements for achieving highly reliable HDL-Programmed
Devices (HPDs), for use in I&C systems of nuclear power plants performing functions of safety
category B or C as defined by IEC 61226.
The programming of HPDs relies on Hardware Description Languages (HDL) and related
software tools. They are typically based on blank Field Programmable Gate Arrays (FPGAs) or
similar micro-electronic technologies such as Programmable Logic Devices (PLD), Complex
Progra...view more

2020-05-07: When amdt is published, add supersession link between PR=64419 and PR=21139

2020-05-07: When amdt is published, add supersession link between PR=65214 and PR=21445

This document specifies the requirements and test methods of the raw and moulded bamboo charcoal for fuel applications.