SIST EN 13741:2004

Thermal performance acceptance testing of mechanical draught series wet cooling towers

This European Standard specifies requirements, test method and acceptance tests for thermal performance of mechanical draught series cooling towers. This European Standard is applicable to series type wet cooling towers as defined in 3.1. The acceptance testing covers the verification of the thermal and hydraulic performance data of the cooling tower selected from the product line (see 3.1) and specified in the contract between the supplier and the purchaser.

Wärmetechnische Abnahmeprüfung an zwangsbelüfteten standardisierten Nasskühltürmen

Diese Europäische Norm legt Anforderungen, Art der Abnahme, Prüfverfahren und Abnahmemessung hinsichtlich des wärmetechnischen Verhaltens von zwangsbelüfteten Serienkühltürmen fest. Diese Europäische Norm gilt für nach Abschnitt 3.1 beschriebene Serienkühltürme. Die Abnahmemessung umfaßt den Nachweis der thermischen und hydraulischen Eigenschaften von Serienkühltürmen, die aus einer Baureihe (siehe Abschnitt 3.1) ausgewählt und festgelegt wurden in Vereinbarung zwischen Lieferant und Käufer.

Essais de réception des performances thermiques des aéroréfrigérants humides a tirage mécanique et fabriqués en série

La présente Norme européenne spécifie les exigences, les méthodes d'essai et les essais de réception des performances thermiques des aéroréfrigérants humides à tirage mécanique et fabriqués en série.
La présente Norme européenne est applicable aux aéroréfrigérants humides fabriqués en série tels que définis en 3.1.
Les essais de réception traitent de la vérification des données de performances thermiques et hydrauliques de l'aéroréfrigérant sélectionné dans la ligne de produit (voir le 3.1) et spécifié dans le contrat entre le fournisseur et l'acheteur. Si ces essais sont nécessaires, il convient alors de le reconnaître au moment du contrat, sous la forme d'installations supplémentaires et, des préparatifs peuvent être nécessaires préalablement aux essais.
Une méthodologie de calcul de la tolérance des essais est fournie dans la présente norme. Il convient que le contrat indique si cette méthodologie doit être utilisée ou non pour l'évaluation des résultats de l'essai.
Les conséquences légales et commerciales pouvant résulter de la réalisation ou du défaut de réalisation des performances convenues contractuellement ne font pas partie de la présente norme européenne.

Preskušanje toplotnih lastnosti mokrih hladilnih stolpov s prisilnim vlekom

General Information

• Status: Published
• Publication Date: 31-May-2004
• ICS: 27.200 - Refrigerating technology
• Technical Committee: OGS - Heating for buildings
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2004
• Due Date: 01-Jun-2004
• Completion Date: 01-Jun-2004
• Ref Project: EN 13741:2003 - Thermal performance acceptance testing of mechanical draught series wet cooling towers

Overview

EN 13741:2003 is a CEN (European) standard that defines requirements, a test method and acceptance tests for the thermal performance of mechanical draught series wet cooling towers. The standard applies to series-type wet cooling towers (see clause 3.1 of the standard) and is intended to verify the thermal and hydraulic performance data of a cooling tower unit selected from a product line and specified in the contract between supplier and purchaser.

Key topics and requirements

• Scope and applicability: Applies to factory-manufactured, series wet cooling towers driven by mechanical draught (fan-forced airflow).
• Acceptance testing: Defines the purpose and framework for acceptance tests that confirm contract-specified thermal and hydraulic performance.
• Test method: Prescribes an agreed method to measure cooling tower thermal output and hydraulic behaviour under defined conditions (instrumentation, data collection and test procedure are specified in the standard).
• Selection of test unit: Covers procedures for selecting a representative unit from a product line for verification testing, as defined in the standard’s product-line definitions.
• Performance verification: Focuses on verifying both thermal performance (heat rejection, temperature changes) and hydraulic performance (water flow, pressure loss) against contractual data.
• Reporting and acceptance criteria: Requires documented test reports and criteria for acceptance or rejection based on measured results and the purchaser–supplier contract.
• Traceability and conformity: Ensures results are traceable and suitable for contractual acceptance; supports conformity assessment for delivered cooling towers.

Practical applications

• Procurement and contract management: Use EN 13741 to define acceptance test obligations in supply contracts and to protect purchaser interests.
• Manufacturers and suppliers: Demonstrate that series cooling towers meet declared thermal and hydraulic performance before delivery.
• Test laboratories and commissioning teams: Conduct standardized acceptance tests and produce compliant test reports.
• Plant engineers and operators: Verify that installed cooling towers meet required cooling capacity and hydraulic characteristics for process, HVAC or power-plant applications.
• Quality assurance and compliance: Provide objective evidence of performance for warranty, commissioning and regulatory records.

Related standards

• Other CEN/HVAC and refrigerating-technology standards on cooling equipment, testing and performance data (refer to national adoptions such as SIST EN 13741 where applicable).
• Use in conjunction with project-specific HVAC and process engineering specifications for site acceptance and commissioning.

EN 13741 is a practical, contract-focused standard for ensuring reliable, repeatable acceptance testing of mechanical-draught wet cooling towers and for verifying performance claims in commercial transactions.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskušanje toplotnih lastnosti mokrih hladilnih stolpov s prisilnim vlekomWärmetechnische Abnahmeprüfung an zwangsbelüfteten standardisierten NasskühltürmenEssais de réception des performances thermiques des aéroréfrigérants humides a tirage mécanique et fabriqués en sérieThermal performance acceptance testing of mechanical draught series wet cooling towers27.200Hladilna tehnologijaRefrigerating technologyICS:Ta slovenski standard je istoveten z:EN 13741:2003SIST EN 13741:2004en,fr,de01-junij-2004SIST EN 13741:2004SLOVENSKI
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