Energi- och värmeöverföring

Ämnesområden: Tryckregulatorer; Gasbrännare
Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: CEN
Svarsdatum: den 13 aug 2021
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This document specifies the safety, construction and performance requirements for electronic fuel/air ratio control system (ERC), electronic fuel/air ratio supervision system (ERS) and electronic fuel/air ratio trim system (ERT) intended for use with burners and appliances burning gaseous or liquid fuels. It also describes the test procedures for evaluating these requirements and specifies information necessary for installation and use.
This document is applicable to
— closed loop fuel/air ratio control systems, see 3.101;
— fuel/air ratio supervision systems, see 3.102;
— closed loop fuel/air ratio trim systems, see 3.103;
and does not differentiate into classification by heat input.
NOTE 1 European Standards for burners, appliances or processes which use ERC, ERS or ERT can override the requirements of this document.
NOTE 2 Provisions for production control are not part of this document.

Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: CEN
Svarsdatum: den 16 aug 2021
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EN 13611:2019, 1 is replaced by the following:
This document specifies the safety, construction and performance requirements for automatic burner control systems, programming units, flame detector devices and HTO detectors, intended for use with gas and oil burners and gas and oil burning appliances, with or without fans and similar use.
This document is applicable to automatic burner control systems that include additional functions.
This document does not cover automatic burner control systems utilizing thermo-electric flame supervision devices.
NOTE 1 European Standards for burners, appliances or processes which use automatic burner control systems, programming units, flame detectors or HTO detectors can override the requirements of this standard.
NOTE 2 Provisions for production control are not part of this document.

Kommittébeteckning: SIS/TK 405 (Kärnenergi)
Källa: ISO
Svarsdatum: den 19 aug 2021
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This document provides guidance in the preparation, verification, and validation of group-averaged neutron and gamma-ray cross sections for the energy range and materials of importance in radiation protection and shielding calculations for nuclear reactors1).

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 10 sep 2021
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This document specifies the requirements for the design and calculation of water-tube boilers as defined in EN 12952-1.
The purpose of this document is to ensure that the hazards associated with water-tube boilers are reduced to a minimum by the proper application of the design according to this part of EN 12952.