iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN 328:1999

(Main)

Heat exchangers - Test procedures for establishing the performance of forced convection unit air coolers for refrigeration

Heat exchangers - Test procedures for establishing the performance of forced convection unit air coolers for refrigeration

This European Standard is applicable to non-ducted unit air coolers for refrigeration operating:   a) with direct dry expansion of a refrigerant  b) with liquid overfeed by pump circulation of a refrigerant  c) with a liquid.

Wärmeaustauscher - Prüfverfahren zur Bestimmung der Leistungskriterien von Ventilatorluftkühlern

Diese Europäische Norm ist gültig für kanallose Ventilatorluftkühler, zum Einsatz in Kälteanlagen a) mit direkter trockener Expansion eines Kältemittels b) mit Flüssigkeitspumpenumwälzung eines Kältemittels c) mit Kälteträgern.

Echangeurs thermiques - Procédures d'essai pour la détermination de la performance des aérofrigorifères à convection forcée

La présente norme européenne s'applique aux aérofrigorifères non canalisés utilisés dans les situations suivantes :  a) expansion directe à sec du fluide frigorigène ;  b) suralimentation en liquide par circulation du fluide frigorigène au moyen d'une pompe ;  c) fonctionnement avec un liquide.

Prenosniki toplote –Hladilniki zraka s prisilno konvekcijo – Postopki preskušanja za ugotavljanje tehničnih karakteristik

General Information

Status
Withdrawn
Publication Date
20-Apr-1999
Withdrawal Date
26-Aug-2014
ICS
23.120 - Ventilators. Fans. Air-conditioners
27.060.30 - Boilers and heat exchangers
Technical Committee
CEN/TC 110 - Heat exchangers
Drafting Committee
CEN/TC 110/WG 1 - Heat exchangers used in the field of refrigeration and air conditioning
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
27-Aug-2014
Ref Project
SIST EN 328:1999 - Heat exchangers - Test procedures for establishing the performance of forced convection unit air coolers for refrigeration

Relations

Replaced By
EN 328:2014 - Heat exchangers - Forced convection unit air coolers for refrigeration - Test procedures for establishing the performance
Effective Date
08-Jun-2022
Amended By
EN 328:1999/A1:2002 - Heat exchangers - Test procedure for establishing the performance of forced convection unit air coolers for refrigeration
Effective Date
08-Jun-2022

Buy Standard

EN 328:1999EN 328:1999
PreviousNext
Standard
EN 328:1999
English language
31 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)


SLOVENSKI STANDARD
01-december-1999
3UHQRVQLNLWRSORWH±+ODGLOQLNL]UDNDVSULVLOQRNRQYHNFLMR±3RVWRSNLSUHVNXãDQMD
]DXJRWDYOMDQMHWHKQLþQLKNDUDNWHULVWLN
Heat exchangers - Test procedures for establishing the performance of forced
convection unit air coolers for refrigeration
Wärmeaustauscher - Prüfverfahren zur Bestimmung der Leistungskriterien von
Ventilatorluftkühlern
Echangeurs thermiques - Procédures d'essai pour la détermination de la performance
des aérofrigoriferes a convection forcée
Ta slovenski standard je istoveten z: EN 328:1999
ICS:
23.120 =UDþQLNL9HWUQLNL.OLPDWVNH Ventilators. Fans. Air-
QDSUDYH conditioners
27.060.30 Grelniki vode in prenosniki Boilers and heat exchangers
toplote
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 32
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN 328:2014(Main)
Heat exchangers - Forced convection unit air coolers for refrigeration - Test procedures for establishing the performance
SIST EN 328:2014

This European Standard is applicable to non-ducted unit air coolers for refrigeration operating:
a)   with direct dry expansion of a refrigerant;
b)   with liquid overfeed by pump circulation of a refrigerant;
c)   with a liquid.
This standard specifies uniform methods of performance assessment to test and ascertain the following:
-                product identification;
-   standard capacity;
-   standard liquid pressure drop;
-   standard refrigerant pressure drop (for operation with liquid overfeed by pump circulation only);
-   nominal air flow rate;
-   nominal fan power.
It does not cover evaluation of conformity.
It is not applicable to air coolers for duct mounting or with natural air convection.
This standard does not cover technical safety aspects.

  • Standard
    46 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 328:2014(Main)
Heat exchangers - Forced convection unit air coolers for refrigeration - Test procedures for establishing the performance
SIST EN 328:2014

This European Standard is applicable to non-ducted unit air coolers for refrigeration operating:
a)   with direct dry expansion of a refrigerant;
b)   with liquid overfeed by pump circulation of a refrigerant;
c)   with a liquid.
This standard specifies uniform methods of performance assessment to test and ascertain the following:
-                product identification;
-   standard capacity;
-   standard liquid pressure drop;
-   standard refrigerant pressure drop (for operation with liquid overfeed by pump circulation only);
-   nominal air flow rate;
-   nominal fan power.
It does not cover evaluation of conformity.
It is not applicable to air coolers for duct mounting or with natural air convection.
This standard does not cover technical safety aspects.

  • Standard
    46 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
CEN/TS 16931-8:2024(Main)
Electronic invoicing - Part 8: Semantic data model of the elements of an e-receipt or a simplified electronic invoice
kSIST FprEN 16931-8:2024

This document establishes a semantic data model of an e-receipt or a simplified electronic invoice.
NOTE   In the remainder of this document, when “e-receipt” is mentioned, “simplified invoice” is also meant.
The semantic model includes essential information elements that an electronic receipt needs to ensure legal (including fiscal) compliance and to enable interoperability for cross-border, cross sector and domestic trade. The semantic model can be used by organizations in the private and the public sector for documenting by issuing a receipt for the purchase of services and /or goods. It can also be used for documenting a purchase between private sector enterprises. In addition, it has been designed for the use of consumers.

  • Draft
    69 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 19403-5:2024(Main)
Paints and varnishes - Wettability - Part 5: Determination of the polar and dispersive fractions of the surface tension of liquids from contact angles measurements on a solid with only a disperse contribution to its surface energy (ISO 19403-5:2024)
kSIST FprEN ISO 19403-5:2024

This document specifies a test method to determine the polar and dispersive fractions of the surface tension of liquids by optical methods. The method can be applied for the characterization of liquid coating materials.
If applied to liquids with non-Newtonian flow behaviour (see ISO 3219-1:2021, 3.22), restrictions can apply.

  • Draft
    10 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 16286-1:2024(Main)
Railway applications - Gangway systems between vehicles - Part 1: Main applications
SIST EN 16286-1:2024

This document specifies the technical and safety requirements applicable to gangway systems used in heavy rail and urban rail vehicles that are designed to allow passengers or staff to move between adjacent vehicles.
It also specifies:
- the requirements for the safety for passengers and/or staff in the gangway while the train is running,
- the assessment methods as well as pass/fail criteria for gangways installed on vehicles.
NOTE Some requirements in this document may not be applicable for gangways designed for use by staff only.
This document is not intended to specify requirements for articulation systems which can be an integral part of gangway systems.
This document is not applicable for rubber tube gangways and interconnecting gangways for coaches travelling at speeds of up to 200 km/h on high-speed lines with tunnel sections. Information about these types of gangway systems are given in Annex A and Annex B.

  • Draft
    48 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 17966:2024(Main)
Fire protection equipment - Carbon dioxide extinguishing systems for use on premises - Design and installation (ISO 6183:2022, modified)
SIST EN 17966:2024

This document specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of fixed carbon dioxide firefighting systems in buildings, plants or other structures. It is not applicable to extinguishing systems on ships, in aircraft, on vehicles or on mobile fire appliances, or to below ground systems in the mining industry; nor does it apply to carbon dioxide pre-inerting systems.
Design of systems where unclosable opening(s) of the protected volume exceed a specified area and where the opening(s) can be subject to the effect of wind is not specified, although general guidance on the procedure to be followed in such cases is given (see 7.4.3.2).

  • Draft
    77 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 21009-2:2024(Main)
Cryogenic vessels - Static vacuum-insulated vessels - Part 2: Operational requirements (ISO 21009-2:2024)
SIST EN ISO 21009-2:2024

This document specifies operational requirements for static vacuum insulated vessels designed for a maximum allowable pressure of more than 50 kPa (0,5 bar). It can also be used as a guideline for vessels designed for a maximum allowable pressure of less than 50 kPa (0,5 bar).
This document applies to vessels designed for cryogenic fluids specified in ISO 21009-1.
Static cryogenic vessels are often partly equipped by the manufacturer, but can be installed or re- installed by another party, such as the operator, user or owner.
NOTE 1        For the installation of these vessels, additional requirements can apply.
NOTE 2        Some requirements of this document can be covered by local regulations, e.g. safety distances, occupational safety and health.
NOTE 3        Additional requirements can apply to the operation of large scale and field-fabricated vessels.

  • Draft
    22 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 19403-6:2024(Main)
Paints and varnishes - Wettability - Part 6: Measurement of dynamic advancing and receding angle by changing the volume of a drop (ISO 19403‑6:2024)
kSIST FprEN ISO 19403-6:2024

This document specifies a method to measure the dynamic contact angle with an optical method. The dynamic advancing and the dynamic receding contact angles are determined.
By using the measurement specified in this document, the wetting and dewetting properties can be characterized. The morphological and chemical homogeneity of interfaces can also be determined.

  • Draft
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 17936:2024(Main)
Railway applications - Acoustics - Measurement of source terms for environmental noise calculations
SIST EN 17936:2024

This document addresses the measurement of source terms for environmental noise calculation for rail traffic (including light rail, such as trams, metros, etc.). It is applicable to the measurement of in-service trains on operational tracks.
It is not applicable to type acceptance testing of rolling-stock or tracks, or to derive source terms for time domain models.
The following rail traffic noise source types are in the scope:
-   rolling noise;
-   traction and equipment noise;
-   aerodynamic noise;
-   impact noise (e.g. rail joints, switch and crossings, wheel flats);
-   braking noise;
-   bridge noise;
-   squeal noise.
Noise from rail vehicles at standstill, such as stationary engine idling and auxiliary equipment at yards and stations, is covered by EN ISO 3095:2013 for measurement procedures and operating conditions, and by EN ISO 3740:2019 and EN ISO 3744 for the determination of sound power. It is therefore not in the scope of this document.
The calculation of the propagation of sound is part of generally standardized propagation models which are not addressed in this document.
Noise from fixed installations (e.g. stations, depots, electricity sub-stations) is not in the scope of this document.
Source terms are specific to a vehicle and track type. The scope includes measurement procedures and conditions and sampling requirements.

  • Draft
    63 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 19403-7:2024(Main)
Paints and varnishes - Wettability - Part 7: Measurement of the dynamic contact angles and the roll-off angle on a tilt stage (ISO 19403-7:2024)
kSIST FprEN ISO 19403-7:2024

This document specifies a method for the dynamic measurement of the roll-off angle on a tilt stage of a liquid drop on a solid surface. This document also specifies how the dynamic advancing and receding contact angles of the drop rolling off can be determined. The roll-off angle determined through this method can be applied when evaluating easy-to-clean or anti-adherent surfaces.

  • Draft
    18 pages
    English language
    sale 10% off
    e-Library read for
    1 day