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  • EN 12238:2001

    Current The latest, up-to-date edition.

    Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application

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    Published date:  28-08-2001

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms, definitions and symbols
       3.1 functional characteristics of air terminal devices
       3.2 Symbols
    4 Instrumentation
       4.1 Air flow rate measurement
       4.2 Pressure measurement
       4.3 Temperature measurements
       4.4 Velocity measurements
    5 Testing of pressure and air velocity v[k]
       (first test installation)
       5.1 Measurement of pressure requirement for a supply
            air terminal device
            5.1.1 General
            5.1.2 Measurement of static gauge pressure p[s]
                   with the first test installation A
            5.1.3 Direct measurement of total pressure p[t]
                   with the first installation A
            5.1.4 Measurement of static pressure p[s] with
                   the first installation B
            5.1.5 Presentation of total pressure p[t]
       5.2 Measurement of pressure requirement for an exhaust
            air terminal device
            5.2.1 Procedure
            5.2.2 Measurement of static pressure with the first
                   test installation C for exhaust air terminal
                   device (excluding air transfer devices)
            5.2.3 Direct measurement of total pressure with the
                   first installation C, for exhaust air terminal
                   device
            5.2.4 Measurement of static pressure with the first
                   test installation D for exhaust air terminal
                   device
            5.2.5 Presentation of total pressure p[t]
       5.3 Determination of air velocity v[k] and the corresponding
            area A[k] for the air terminal device (not mandatory)
            5.3.1 Principle
            5.3.2 Test installation
            5.3.3 Test procedure
            5.3.4 Correction of flow rates to standard air conditions
            5.3.5 Calculation of A[k]
    6 Test to measure the isothermal air discharge characteristics
       of a supply air terminal device (second test installation)
       6.1 Test measurements
       6.2 Test room
       6.3 Test room equipment and instrumentation
       6.4 Installation of the air thermal device
            6.4.1 Classification of air terminal devices
            6.4.2 Mounting of air terminal devices
            6.4.3 Test duct and flow rate
       6.5 Test procedure
       6.6 Determination of isothermal performance
            6.6.1 Test measurements
            6.6.2 Determination of the main air stream direction
            6.6.3 Measurement of air stream velocities
            6.6.4 Determination of throw
            6.6.5 Determination of spread
            6.6.6 Determination of rise and drop
    Annex A (normative) Alternative exploratory technique for
            determination of throw, spread and drop
       A.1 Scope
       A.2 Determination of the point of maximum velocity
       A.3 Determination of points at envelope velocity
       A.4 Determination of spread
       A.5 Determination of the rise and drop
       A.6 Number of determinations

    Abstract - (Show below) - (Hide below)

    This European Standard specifies methods for the laboratory aerodynamic testing and rating of air terminal devices for mixed flow applications, including the specification of suitable test facilities and measurement techniques.The standard gives only tests for the assessment of characteristics of the air terminal devices under isothermal conditions.The testing of low velocity air terminal devices is specified in EN 12239.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 156
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    DIN EN 15726 E : 2011 VENTILATION FOR BUILDINGS - AIR DIFFUSION - MEASUREMENTS IN THE OCCUPIED ZONE OF AIR-CONDITIONED/VENTILATED ROOMS TO EVALUATE THERMAL AND ACOUSTIC CONDITIONS
    BS EN 16445:2013 Ventilation for buildings. Air diffusion. Aerodynamic testing and rating for mixed flow application: non-isothermal procedure for cold jet
    DIN EN 14277 E : 2006 VENTILATION FOR BUILDINGS - AIR TERMINAL DEVICES - METHOD FOR AIRFLOW MEASUREMENT BY CALIBRATED SENSORS IN OR CLOSE TO ATD/PLENUM BOXES
    BS EN 12599:2012 Ventilation for buildings. Test procedures and measurement methods to hand over air conditioning and ventilation systems
    BS EN 13141-2:2010 Ventilation for buildings. Performance testing of components/products for residential ventilation Exhaust and supply air terminal devices
    EN 13141-2:2010 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 2: Exhaust and supply air terminal devices
    EN 12239:2001 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for displacement flow applications
    EN 12599:2012 Ventilation for buildings - Test procedures and measurement methods to hand over air conditioning and ventilation systems
    BS EN ISO 7235:2009 Acoustics. Laboratory measurement procedures for ducted silencers and air-terminal units. Insertion loss, flow noise and total pressure loss
    UNI EN 16445 : 2013 VENTILATION FOR BUILDINGS - AIR DIFFUSION - AERODYNAMIC TESTING AND RATING FOR MIXED FLOW APPLICATION: NON-ISOTHERMAL PROCEDURE FOR COLD JET
    UNI EN 15423 : 2008 VENTILATION FOR BUILDINGS - FIRE PRECAUTIONS FOR AIR DISTRIBUTION SYSTEMS IN BUILDINGS
    08/30188933 DC : DRAFT SEP 2008 BS EN 15854 - VENTILATION FOR BUILDINGS - AIR DIFFUSION - AERODYNAMIC TESTING AND RATING FOR MIXING FLOW APPLICATION - NON-ISOTHERMAL PROCEDURE FOR A COLD JET
    DIN EN 16445 E : 2013 VENTILATION FOR BUILDINGS - AIR DIFFUSION - AERODYNAMIC TESTING AND RATING FOR MIXED FLOW APPLICATION: NON-ISOTHERMAL PROCEDURE FOR COLD JET
    01/714475 DC : DRAFT NOV 2001 BS EN 14277 - VENTILATION FOR BUILDINGS - AIR TERMINAL DEVICES - METHOD FOR AIRFLOW MEASUREMENT BY CALIBRATED SENSORS IN ATD/PLENUM BOXES
    DIN EN 15423 E : 2008 VENTILATION FOR BUILDINGS - FIRE PRECAUTIONS FOR AIR DISTRIBUTION SYSTEMS IN BUILDINGS
    17/30332533 DC : 0 BS EN 13141-1 - VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 1: EXTERNALLY AND INTERNALLY MOUNTED AIR TRANSFER DEVICES
    08/30175518 DC : DRAFT SEP 2008 BS EN 13141-2 - VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 2: EXHAUST AND SUPPLY AIR TERMINAL DEVICES
    PREN 12599 : DRAFT 2010 VENTILATION FOR BUILDINGS - TEST PROCEDURES AND MEASUREMENT METHODS TO HAND OVER AIR CONDITIONING AND VENTILATION SYSTEMS
    I.S. EN 15726:2011 VENTILATION FOR BUILDINGS - AIR DIFFUSION - MEASUREMENTS IN THE OCCUPIED ZONE OF AIR-CONDITIONED/VENTILATED ROOMS TO EVALUATE THERMAL AND ACOUSTIC CONDITIONS
    UNE-EN 15726:2012 Ventilation for buildings - Air diffusion - Measurements in the occupied zone of air-conditioned/ventilated rooms to evaluate thermal and acoustic conditions
    I.S. EN ISO 7235:2009 ACOUSTICS - LABORATORY MEASUREMENT PROCEDURES FOR DUCTED SILENCERS AND AIR-TERMINAL UNITS - INSERTION LOSS, FLOW NOISE AND TOTAL PRESSURE LOSS
    DIN EN 13141-2:2010-12 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 2: Exhaust and supply air terminal devices
    I.S. EN 12599:2012 VENTILATION FOR BUILDINGS - TEST PROCEDURES AND MEASUREMENT METHODS TO HAND OVER AIR CONDITIONING AND VENTILATION SYSTEMS
    I.S. EN 13141-2:2010 VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 2: EXHAUST AND SUPPLY AIR TERMINAL DEVICES
    DIN EN ISO 7235:2010-01 Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003)
    BS EN 15423:2008 Ventilation for buildings. Fire precaution for air distribution systems in buildings
    UNI EN 14277 : 2008 VENTILATION FOR BUILDINGS - AIR TERMINAL DEVICES - METHOD FOR AIRFLOW MEASUREMENT BY CALIBRATED SENSORS IN OR CLOSE TO ATD/PLENUM BOXES
    10/30235574 DC : 0 BS EN 12599 - VENTILATION FOR BUILDINGS - TEST PROCEDURES AND MEASUREMENT METHODS TO HAND OVER AIR CONDITIONING AND VENTILATION SYSTEMS
    UNI EN 15726 : 2011 VENTILATION FOR BUILDINGS - AIR DIFFUSION - MEASUREMENTS IN THE OCCUPIED ZONE OF AIR-CONDITIONED/VENTILATED ROOMS TO EVALUATE THERMAL AND ACOUSTIC CONDITIONS
    UNE-EN 13141-2:2011 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 2: Exhaust and supply air terminal devices
    UNI EN 12599 : 2012 VENTILATION FOR BUILDINGS - TEST PROCEDURES AND MEASUREMENT METHODS TO HAND OVER AIR CONDITIONING AND VENTILATION SYSTEMS
    UNI EN 13141-2 : 2010 VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 2: EXHAUST AND SUPPLY AIR TERMINAL DEVICES
    UNI EN ISO 7235 : 2009 ACOUSTICS - LABORATORY MEASUREMENT PROCEDURES FOR DUCTED SILENCERS AND AIR- TERMINAL UNITS - INSERTION LOSS, FLOW NOISE AND TOTAL PRESSURE LOSS
    DIN EN 15726:2011-12 Ventilation for buildings - Air diffusion - Measurements in the occupied zone of air-conditioned/ventilated rooms to evaluate thermal and acoustic conditions; German version EN 15726:2011
    BS EN 15726:2011 Ventilation for buildings. Air diffusion. Measurements in the occupied zone of air-conditioned/ventilated rooms to evaluate thermal and acoustic conditions
    DIN EN 16445:2013-05 VENTILATION FOR BUILDINGS - AIR DIFFUSION - AERODYNAMIC TESTING AND RATING FOR MIXED FLOW APPLICATION: NON-ISOTHERMAL PROCEDURE FOR COLD JET
    PREN 13141-1 : DRAFT 2017 VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 1: EXTERNALLY AND INTERNALLY MOUNTED AIR TRANSFER DEVICES
    DIN EN 13141-1:2004-05 VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 1: EXTERNALLY AND INTERNALLY MOUNTED AIR TRANSFER DEVICES
    DIN EN 12599:2013-01 VENTILATION FOR BUILDINGS - TEST PROCEDURES AND MEASUREMENT METHODS TO HAND OVER AIR CONDITIONING AND VENTILATION SYSTEMS
    UNE-EN ISO 7235:2010 Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003)
    ISO 7235:2003 Acoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure loss
    BS EN 14277:2006 Ventilation for buildings. Air terminal devices. Method for airflow measurement by calibrated sensors in or close to ATD/plenum boxes
    EN 15423:2008 Ventilation for buildings - Fire precautions for air distribution systems in buildings
    EN 15726:2011 Ventilation for buildings - Air diffusion - Measurements in the occupied zone of air-conditioned/ventilated rooms to evaluate thermal and acoustic conditions
    EN 14277:2006 Ventilation for buildings - Air terminal devices - Method for airflow measurement by calibrated sensors in or close to ATD/plenum boxes
    EN 16445:2013 Ventilation for buildings - Air diffusion - Aerodynamic testing and rating for mixed flow application: non-isothermal procedure for cold jet
    EN ISO 7235:2009 Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003)
    DIN EN 15423:2008-09 VENTILATION FOR BUILDINGS - FIRE PRECAUTIONS FOR AIR DISTRIBUTION SYSTEMS IN BUILDINGS
    BS EN 13141-1:2004 Ventilation for buildings. Performance testing of components/products for residential ventilation Externally and internally mounted air transfer devices
    I.S. EN 16445:2013 VENTILATION FOR BUILDINGS - AIR DIFFUSION - AERODYNAMIC TESTING AND RATING FOR MIXED FLOW APPLICATION: NON-ISOTHERMAL PROCEDURE FOR COLD JET
    I.S. EN 15423:2008 VENTILATION FOR BUILDINGS - FIRE PRECAUTIONS FOR AIR DISTRIBUTION SYSTEMS IN BUILDINGS
    I.S. EN 13141-1:2004 VENTILATION FOR BUILDINGS - PERFORMANCE TESTING OF COMPONENTS/PRODUCTS FOR RESIDENTIAL VENTILATION - PART 1: EXTERNALLY AND INTERNALLY MOUNTED AIR TRANSFER DEVICES
    EN 13141-1:2004 Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 1: Externally and internally mounted air transfer devices
    BS EN 12239:2001 Ventilation for buildings. Air terminal devices. Aerodynamic testing and rating for displacement flow applications
    DIN EN 14277:2006-11 Ventilation for buildings - Air terminal devices - Method for airflow measurement by calibrated sensors in or close to ATD/plenum boxes

    Standards Referencing This Book - (Show below) - (Hide below)

    EN ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2003)
    ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements
    CR 12792 : 1997 VENTILATION FOR BUILDINGS - SYMBOLS AND TERMINOLOGY
    EN 12239:2001 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for displacement flow applications
    ISO 3966:2008 Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes
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