EN 13741:2003

• Abstract:

  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.

• Status: Published
• Publication Date: 09-Dec-2003
• ICS: 17.200.10 - Heat. Calorimetry
• ICS: 27.200 - Refrigerating technology
• Technical Committee: CEN/TC 110 - Heat exchangers
• Drafting Committee: CEN/TC 110 - Heat exchangers
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 12-Oct-2023
• Completion Date: 17-Sep-2026
• Ref Project: SIST EN 13741:2004 - 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.

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
STANDARD
SI
...