practica 3

Hoja1Area transversalA TEMPERATURA AMBIENTEcm2m280cal/gr80000MaderaYesoVidrio234.740.023474maderaT inicial (C)191919kg79.90.00799yesom inicial (gr)40.493647.1769212.01430.04049360.04717690.21201432400.024vidriom hielo (gr)1.58111.22361.19260.00158110.00122360.0011926Metodo 1 Metodo 2t derretirse (min)20.31341218780240qx/A (cal)qx/A(kg*m2/s2)qx (cal/hr)qx (W)T final (C)1617.6160.33833333330.21666666670.0666666667madera126.4880.000000000100m final (gr)41.732944.2028212.9345yeso97.8880.000000000100A TEMEPRATURAS ELEVADASvidrio95.4080.00000000750.00000000180T inicial (C)6978.654m inicial (gr)38.653842.7685212.01430.03865380.04276850.2120143A TEMPERATURA AMBIENTEm hielo (gr)3.36672.84751.48530.00336670.00284750.0014853Metodo 2Metodo 1t derretirse (min)7.5823.142.2454.81388.4132T (K)dx/dT (m/K)kk (W/m*K)k (W/m*K)T final (C)26.617.943madera 276.150.000018106100.00480608160.0048060816m final (gr)41.762845.77941.4853yeso274.550.00002913865.16513650265686E-160.02746046350.0274604635vidrio276.150.000021727300.0215933370.021593337A TEMPERATURA ELEVADASplacalargoanchoaltoT (K)dx/dT (m/K)kmadera 24.29.70.50.005madera 315.550.0000158453yeso9.48.50.80.008yeso333.850.0000239629vidrio16150.60.006vidrio284.150.000021115680cal/gr80000

area (cm2)area (m2)T(C)T(K)madera 234.740.0234743276.15yeso79.90.007991.4274.55vidrio2400.0243276.15TEMPERATURA AMBIENTEMtodo 1Mtodo 2qx (cal)qx (kg*m2/s2)qx(cal/min)T (K)qx(W)madera126.48800315.550yeso97.88800333.850vidrio95.4080.00000000050284.150TEMPERATURAS ELEVADASmadera269.3360.00000000040.0000000001315.55yeso227.800333.85vidrio118.8240.0000000020.0000000005324.95TEMPERATURA AMBIENTEMtodo 1Mtodo 2Mtodo 1Mtodo 2k (W/m*K)k (W/m*K)k(Btu/h*ft*F)k(Btu/h*ft*F)madera0.00420598781.386531424099E-170.0024301814yeso0.022582807400.01304814vidrio0.0209853950.00000000050.0121251697TEMPERATURAS ELEVADASmadera0.02398501090.00000000040.0138583204yeso0.029524475600.0170589726vidrio0.0415532460.0000000020.0240090863

Hoja2

Hoja3