DIN EN 303-3 Berichtigung 1-2007 de 6841 Heating boilers - Part 3 Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner German version E.pdf

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1、Juli 2007 Normenausschuss Gastechnik (NAGas) im DINNormenausschuss Heiz-, Koch- und Wrmgert (FNH) im DINNormenausschuss Heiz- und Raumlufttechnik (NHRS) im DINPreisgruppe 99DIN Deutsches Institut fr Normung e.V. Jede Art der Vervielfltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches I

2、nstitut fr Normung e.V., Berlin, gestattet.ICS 91.140.10!,x“9859888www.din.deDEs wird empfohlen, auf der betroffenen Normeinen Hinweis auf diese Berichtigung zumachen.DIN EN 303-3 Berichtigung 1Alleinverkauf der Normen durch Beuth Verlag GmbH, 10772 Berlin www.beuth.deGesamtumfang 4 SeitenHeizkessel

3、 Teil 3: Zentralheizkessel fr gasfrmige Brennstoffe Zusammenbau aus Kessel und Geblsebrenner; Deutsche Fassung EN 303-3:1998 + A2:2004, Berichtigungen zu DIN EN 303-3:2004-10; Deutsche Fassung EN 303-3:1998/AC:2006 Heating boilers Part 3: Gas-fired central heating boilers Assembly comprising a boile

4、r body and a forced draught burner; German version EN 303-3:1998 + A2:2004, Corrigenda to DIN EN 303-3:2004-10; German version EN 303-3:1998/AC:2006 Chaudires de chauffage Partie 3: Chaudires de chauffage central utilisant les combustibles gazeux Assemblage dun corps de chaudire et dun brleur air so

5、uffl; Version allemande EN 303-3:1998 + A2:2004, Corrigenda DIN EN 303-3:2004-10; Version allemande EN 303-3:1998/AC:2006 DIN EN 303-3 Ber 1:2007-07 2 Tabelle 5 ist wie folgt zu ersetzen: Tabelle 5 Zur Berechnung des Teillast-Wirkungsgrades bentigten Formelzeichen und Gren Betriebsphasen des Hauptbr

6、enners Wrmebelastung kW Betriebszeit s Gemessene Gre bei 50 C Wirkungsgrad % Volllast Q1t11Teillast Q2t22Teillast 0,3 Q1Q21t2121Teillast Q QQ Q t32132121600180= 211008,01003321213s33212121u=tQ+ tQtP tQ + tQ 3 Regelabschaltung Q3dauernd brennender Zndbrenner 213600 tt = PsVolllast n1QQ = 1)Q QQ Q t22

7、12211600180= 1100100100222211222222111=tQ+ tQtQ+ tQg884 Teillast n223,0 QQ Q QQ Q t2221222121600180= 2110010010022222121222222212121u=tQ+ tQtQ+ tQ 5 Teillast 2 n223,0 QQ 2122600 tt = 22DIN EN 303-3 Ber 1:2007-07 4 Tabelle 6 (fortgesetzt) Betriebsbedingungen Wrmebelastung Zykluszeiten (s) Messwerte W

8、irkungsgrad (%) Volllast n1QQ =1)t1Messwert (siehe Anhang Q) 1Teillast Q2( ) ( )Q QQt - Qt - t3231112600180= 26 Regelabschaltung Q3dauernd brennender Zndbrenner )(600213ttt += Ps100801001003322113s33222111=tQ+ tQ+ tQtP-tQ, +tQ+tQg881)Qnwird ersetzt durch den arithmetischen Mittelwert Qader maximalen und minimale Wrmebelastung bei Kesseln mit Einstellbereich.

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