EN 299:2009

Oil pressure atomizing nozzles - Determination of the angle and spray characteristics

This European Standard specifies a method for the determination of the spray characteristic and the index angle of oil pressure atomizing nozzles.

Öldruckzerstäuberdüsen - Prüfung der Sprühcharakteristik und des Winkels

Diese Europäische Norm legt ein Verfahren zur Ermittlung der Sprühcharakteristik und des Indexwinkels von
Öldruckzerstäuberdüsen fest.

Gicleurs sans retour pour brûleurs à fioul domestique à pulvérisation - Détermination de l'angle et des caractéristiques de pulvérisation

La présente Norme européenne spécifie une méthode de détermination des caractéristiques et de l’indice
d’angle de pulvérisation des gicleurs sans retour pour brûleurs à fioul domestique à pulvérisation.

Tlačne šobe za razprševanje olja pri gorilnikih - Ugotavljanje kota in razprševalnih značilnosti

General Information

• Status: Published
• Publication Date: 18-Aug-2009
• Withdrawal Date: 27-Feb-2010
• ICS: 27.060.10 - Liquid and solid fuel burners
• Technical Committee: CEN/TC 131 - Gas burners using fans
• Drafting Committee: CEN/TC 47/WG 1 - Atomizing nozzles
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 19-Aug-2009
• Due Date: 01-Jul-2010
• Completion Date: 19-Aug-2009
• Ref Project: SIST EN 299:2009 - Oil pressure atomizing nozzles - Determination of the angle and spray characteristics

Relations

• Replaces: EN 299:1998 - Oil pressure-atomizing nozzles - Determination of the angle and spray characteristics
• Effective Date: 22-Dec-2008
• Revised: EN 12514:2020 - Components for supply systems for consuming units with liquid fuels
• Effective Date: 15-Feb-2017

Overview

EN 299:2009 (CEN) specifies a standardized method for determining the spray characteristics and the index angle of oil pressure atomizing nozzles used in liquid-fuel burners. The method uses a radial patternator to capture radial distribution data and derives cumulative volume percentages to compute index angles and to classify spray pattern types. The standard improves repeatability versus visual or photographic angle measurement.

Key Topics

• Test equipment: a cylindrical radial patternator with 14 concentric dividers and graduated collection cylinders, plus a vertically adjustable nozzle holder mounted on the lid.
• Test setup: the nozzle orifice is positioned at an axial distance of 50 mm from the upper bevelled edges of the dividers. Testing is performed with the reference oil specified in EN 293.
• Sampling volume: the total atomized volume per test shall be at least 80 ml and sufficient to provide representative liquid volumes in the collection cylinders.
• Data processing: recorded tube volumes are converted to cumulative percentage volumes and correlated with the plane angles subtended by each annular compartment. Continuous radial distribution is represented in tabular or graphical form.
• Index angle definition: the standard defines the index angle as the 80% angle - the inner cone angle within which 80% of the collected liquid volume is contained. This angle is computed by interpolation between compartments that bracket the target cumulative percentage.
• Angle ratio & classification: a 50%/80% angle ratio provides a measure of spray uniformity. The index of pattern type (I–IV) is assigned using the 50%/80% ratio thresholds:
  • I: > 0.700 - solid
  • II: 0.700 to 0.749 - semi-solid
  • III: 0.750 to 0.799 - semi-hollow
  • IV: ≥ 0.800 - hollow

Applications

• Burner manufacturers: validate nozzle designs and rating labels to ensure consistent flame shaping and combustion performance.
• Quality control: routine production testing to confirm spray pattern conformity and stability over manufacturing lots.
• R&D and selection: compare nozzle types (solid vs hollow patterns) for optimization of atomization, combustion efficiency, and emissions control in oil-fired equipment.
• Certification and standards compliance: provide repeatable, auditable test evidence for conformity with European nozzle performance expectations.

Related Standards

• EN 293 - referenced normative document that specifies the reference oil and minimum requirements/testing for oil pressure atomizing nozzles.

EN 299:2009 emphasizes reproducible measurement of radial spray distribution and index angles to reduce variability caused by visual or photographic angle determination. The radial patternator method delivers objective, quantitative data for nozzle classification and performance verification.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]QDþLOQRVWLÖldruckzerstäuberdüsen - Prüfung der Sprühcharakteristik und des WinkelsGicleurs sans retour pour brûleurs à fioul domestique à pulvérisation - Détermination de l'angle et des caractéristiques de pulvérisationOil pressure atomizing nozzles - Determination of the angle and spray characteristics27.060.10JRULYRLiquid and solid fuel burnersICS:Ta slovenski standard je istoveten z:EN 299:2009SIST EN 299:2009en,fr,de01-december-2009SIST EN 299:2009SLOVENSKI
STANDARDSIST EN 299:20001DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 299August 2009ICS 27.060.10Supersedes EN 299:1998
English VersionOil pressure atomizing nozzles - Determination of the angle andspray characteristicsGicleurs sans retour pour brûleurs à fioul domestique àpulvérisation - Détermination de l'angle et descaractéristiques de pulvérisationÖldruckzerstäuberdüsen - Prüfung der Sprühcharakteristikund des WinkelsThis European Standard was approved by CEN on 23 July 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 299:2009: ESIST EN 299:2009

The main change from the previous edition is that the test equipment in Figure 1 is now dimensioned.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 299:2009
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