KS L 2525-2006 Evaluation on thermal resistance of flat glasses and thermal transmittance of glazing《平板玻璃热阻及热传递特性的计算方法》.pdf

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1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 12 20 http:/www.kats.go.krKS L 2525 KS L 2525: 2006 (2011 )L 2525: 2006 : ( ) ( ) () () ()KCC () ( ) : (http:/www.standard.go.kr) : : 2001 1 2 8 :200 6 12 20 : 2011 12 2 6 2011-0620 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . ICS 81.040.20 KS L

2、 2525: 2006(2011 ) Evaluation on thermal resistance of flat glasses and thermal transmittance of glazing 1994 1 ISO 10292 Glass in building Calculation of steady-state U values(thermal transmittance) of multiple glazing . 1. (1) , U (2) . (1) . , . a) , b) a) . , c) a) b) , , d) a)c) (2) “K ” , ISO

3、10292 “U ” . U , . (KS L 2514 ). 2. . . KS A 0102 , KS A 3251 1 1: KS L 2514 3. KS A 3251 1 . a) (thermal conductance) 1 K . . b) (thermal resistance) . 1 W/m2 c) ( U , thermal transmittance) 1 K L 2525: 2006 2 1 K (thermal transfer coefficient) . . , . d) (corrected emissivity) . (hemispherical emi

4、ssivity) , (effective emissivity) . (normal emissivity) . e) . c d h R s T T U n Gr Nu Pr e i g ( ) 5.6710-8 J/(kg K) m W/(m2 K) K m2/W m K K W/(m2 K) W/(m K) W/(m K) N s/m2 kg /(m s) kg/m3W/(m2 K4) L 2525: 2006 3 m n r s 4. . . 4.1 R . 1 0 . 2 . +=NMdhRmms1(1) hs: N: M: . . dm: m: hs . grshhh += (2

5、) hr: hg: ( ) U (1) R . ie111hRhU+=(3) he: hi: 4.2 hr . 3m121r1114 Th += (4) : = 5.6710 8W/(m2 K4) 1, 2: 3.(d) Tm: 550 m hr (4) . (4) . 4.3 a) hg . L 2525: 2006 4 sCh=g(5) s: (m) : W/(m K) C: C N u . N u1 C 1 N u 1 C N u C = 1 , (5) . b) Nu . , Nu 1 . nPrGrANu )( = (6) A, n: Gr: (7) . Pr: (8) . 2m23

6、81.9=TTsGr(7) cPr =(8) T: (K) : (kg/m3) : N s/m2 = kg/(m s) c: J/(kg K) mT : (K) 5. 4. . 5.1 (1) 1W/(m K) . 5.2 (4) hr 1 2 . a) KS L 2514 7.( ) n 1 . b) n= 0.89 , 1 / n 0.94 0.837 . 5.3 5.3.1 A n N u (6) A n . a) A 0.035, n 0.38 b) A 0.16, n 0.28 c) 45 A 0.10, n 0.31 N u 1 . L 2525: 2006 5 5.3.2 (5)

7、 Gr Pr (7) (8) , , , c 2 . F . F F1 R1 F2 R2 (9) F1, F2, : , , R1, R2, : 2 , , , . 5.4 (4) (5) (3) . 5.4.1 , . Tm 283 K mT 283 K T 15 K . . 0 , 20 . KS L 2514 5.4.2 . he 4.9 e 16.3 W/(m2 K) hi 5.4 i 4.1 W/(m2 K) e, i 5.2 . , . . U he hi . 6. . K m2/W, U W/(m2 K) KS A 3251 1 2 . 5.4 . kcal/m2 h 0.86

8、. L 2525: 2006 6 1 n / n . n / n0.03 0.05 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.89 1.22 1.18 1.14 1.10 1.06 1.03 1.00 0.98 0.96 0.95 0.94 n . 2 kg/m3 10 5kg/(m s) 10 2W/(m K) c 103J/(kg K) 10 0 10 20 1.326 1.277 1.232 1.189 1.661 1.711 1.761 1.811 2.336 2.416 2.496 2.576 1.008 10 0 10 20 1.829 1.762 1.6

9、99 1.640 2.038 2.101 2.164 2.228 1.584 1.634 1.684 1.734 0.519 SF6 10 0 10 20 6.844 6.602 6.360 6.118 1.383 1.421 1.459 1.497 1.119 1.197 1.275 1.354 0.614 10 0 10 20 3.832 3.690 3.560 3.430 2.260 2.330 2.400 2.470 0.842 0.870 0.900 0.926 0.245 7 KS L 2525:2006 , , . 1. , ISO 10292: 1994Glass in bui

10、lding Calculation of steady-state U values(thermal transmittance) of multiple glazing ISO . ISO ISO/TC 160(Glass in building) WG . . , . , . , . . ( ) , . ISO . , , . . , . ISO 10292 . 2. 2.1 , , “ ” , , . . 2.2 a) KS A 0102( , ) . “thermal transmittance” L 2525: 2006 8 . K, k, U . ISO 10292 U . b)

11、ISO 10292 “corrected emissivity” . 1 , . “emittance” , “emissivity” . , (550m) 0 . 2.3 ISO 10292 . ( 15) ISO 10292 1 W/(m K) . , ISO 10292 , . , ISO 10292 , 12 mm . 2.4 ISO 10292 . , . ISO 10292 KS L 2514( ) . . ASHRAE Standard 142: 1994 Draft( 6) . 2 . . (漸近 ) . ISO 10292 . L 2525: 2006 9 1 A.Winke

12、lmann: Ann.PHy.Chem., 49, 401(1893) 2 A.Russ: Sprechsaal, 61, 887(1928) 3 G.W.Morey: Properties of Glass, p.219 Reinhold(1954) 4 E.H.Ratcliffe: Glass Technology, 4, 113(1963) 5 M.M.Ammer: J.Am.Ceram.Soc., 66-C-76(1983) 6 ASHRAE Standard 142 Draft, Standard Method for Determining and Expressing the H

13、eat Transfer and Total Optical Properties of Fenestration Products(1994) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKorean Agency for Technology and Standards http:/www.kats.go.kr KS L 2525: 2006 Evaluation on thermal resistance of flat glasses and thermal transmittance of glazing ICS 81.040.20

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