Energi- och värmeöverföring

Kommittébeteckning: SIS/TK 558 (Effektiv energianvändning)
Källa: ISO
Svarsdatum: den 30 jan 2021
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This document provides guidance for organizations to establish a phased approach to implement an energy management system (EnMS). This process intends to support and simplify the implementation of an EnMS for all types of organizations, in particular by Small and Medium Sized organizations (SMOs).
This document establishes core elements and levels for implementing and maintaining an EnMS that results in energy performance improvement. It enables the user of this document to implement a process to take a phased approach to achieve a level of energy management appropriate to its objectives and potentially meet the requirements of ISO 50001:2018. This document is consistent with ISO 50001:2018, but does not cover all the requirements of ISO 50001:2018.

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This document provides requirements and test methods for flexible, factory made, buried district heating pipe systems with metallic service pipes and bonding between the layers of the pipe assemblies and thermal insulation materials of polyurethane or polyisocyanurate foam, the casing being made of polyethylene.
It shall be used in conjunction with part 1.
This document is valid for maximum media temperatures up to 120 °C and, occasionally peak temperatures up to 140 °C for maximum 300 h/a, and a design pressure up to 2,5 MPa for a design lifetime of at least 30 years.
This document covers surveillance systems.
In conjunction with the other parts of EN 15632, this document is applicable to pipes, fittings, their joints and to joints with components made of non-plastics materials intended to be used for district heating installations.
NOTE For higher temperatures or for the transport of other fluids, for example potable water, additional requirements and testing is needed. Such requirements are not specified in this document.

Kommittébeteckning: SIS/TK 300 (Förtillverkade fjärrvärmerör)
Källa: CEN
Svarsdatum: den 4 feb 2021
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This document provides requirements and test methods for flexible, factory made, buried district heating pipes systems with plastic service pipes and no bonding between the layers of the pipe assemblies.
It shall be used in conjunction with part 1.
This document is valid for maximum operating temperature of 95 °C and maximum operating design pressure up to 1,0 MPa for a design lifetime of at least 30 years.
This document does not cover surveillance systems.
In conjunction with the other parts of EN 15632, this document is applicable to pipes, fittings, their joints and to joints with components made of non-plastics materials intended to be used for district heating installations.
NOTE For higher temperatures or for the transport of other fluids, for example potable water, additional requirements and testing is needed. Such requirements are not specified in this document.

Kommittébeteckning: SIS/TK 300 (Förtillverkade fjärrvärmerör)
Källa: CEN
Svarsdatum: den 4 feb 2021
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This document provides requirements and test methods for flexible, factory made, buried heating pipe systems with plastics service pipes and bonding between the layers of the pipe assemblies.
It shall be used in conjunction with part 1.
This document is valid for maximum operating temperatures of 95 °C and maximum operating design pressures up to 1,0 MPa for a design service life of at least 30 years.
This document does not cover surveillance systems.
In conjunction with the other parts of EN 15632, this document is applicable to pipes, fittings, their joints and to joints with components made of non-plastics materials intended to be used for district heating installations.
NOTE For higher temperatures or for the transport of other fluids, for example potable water, additional requirements and testing is needed. Such requirements are not specified in this document.

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This document provides classification, general requirements and test methods for flexible, factory made, buried district heating pipe systems.
This document is intended to be used in conjunction with part 2, 3 or 4, as applicable.
Depending on the pipe assembly (see Table 4), this document is valid for maximum media temperature of 95 °C (part 2 and 3) and maximum media temperature of 120 °C (for part 4) and design pressures of 0,6 MPa to 2,5 MPa.
The pipe systems are designed for a service life of at least 30 years. For pipe systems with plastic service pipes, the respective temperature profiles are defined in EN 15632-2 and EN 15632-3.
NOTE For the transport of other liquids, for example potable water, additional requirements can be applicable.

Kommittébeteckning: SIS/TK 412 (Fasta bränslen)
Källa: ISO
Svarsdatum: den 12 mar 2021
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This document specifies methods for sample preparation to ensure representativeness of the samples throughout the preparation procedures to produce general analysis samples. Suitable test portions can be taken from the laboratory or general analysis samples and used for analysis in conformance with the specific requirements defined in the corresponding analytical procedures.
This document specifies the correct sample preparation sequence to be applied to:
a) the field sample in order to produce a laboratory sample (taking into account large pieces of solid recovered fuel);
b) each sub-sampling step throughout the testing program;
c) the laboratory sample in order to obtain suitable test portions;
d) ensure the representativeness of the test portions that have been taken according to the sample preparation plan, prior to physical and/or chemical analysis (e.g. extractions, digestion and/or analytical determinations).
The methods described in this document can be used for sample preparation, for example, when the samples are to be tested for bulk density, biomass content determination, mechanical durability, particle size distribution, moisture content, ash content, ash melting behaviour, calorific value, chemical composition, impurities and self-heating properties. The methods are not intended to be applied to the very large samples required for the testing of bridging properties.