常用材料導(dǎo)熱系數(shù)-中文

1、.材料的導(dǎo)熱系數(shù)日期:2007-2-17 22:28:48 來(lái)源:來(lái)自網(wǎng)絡(luò) 查看:大中小 作者：不詳 熱度： 1889附錄A 材料的導(dǎo)熱系數(shù)(l) A.0.1 表A.0.1中給出材料的導(dǎo)熱系數(shù)。表 A.0.1 常用材料的導(dǎo)熱系數(shù)用途材料密度(kg/m3)導(dǎo)熱系數(shù)(W/m×K)窗框銅8900380鋁 (硅合金)2800160黃銅8400120鐵780050不銹鋼790017PVC13900.17硬木7000.18軟木 (常用于建筑構(gòu)件中)5000.13玻璃鋼(UP樹(shù)脂)19000.40玻璃碳酸鈣玻璃25001.0PMMA (有機(jī)玻璃)11800.18聚碳酸脂12000.20熱斷橋聚冼氨

2、 (尼龍)11500.25尼龍 6.6和25%玻璃纖維14500.30高密度聚乙烯HD9800.50低密度聚乙烯 LD9200.33固體聚丙烯9100.22帶有25%玻璃纖維的聚丙烯12000.25PU (聚亞氨脂樹(shù)脂)12000.25剛性PVC13900.17防雨氯丁橡膠 (PCP)12400.23密封條EPDM (三元乙丙)11500.25純硅膠12000.35柔性PVC12000.14聚脂馬海毛 0.14柔性人造橡膠泡末60800.05密封劑PU (剛性聚氨脂)12000.25固體/熱融異丁烯12000.24聚硫膠17000.40純硅膠12000.35聚異丁烯9300.20聚脂

3、樹(shù)脂14000.19硅膠（干燥劑）7200.13分子篩650 to 7500.10低密度硅膠泡末7500.12中密度硅膠泡末8200.17附錄B 氣體熱物理性能 B.0.1下列表的線性公式系數(shù)，計(jì)算填充空氣、氬氣、氮?dú)?、氙氣四種氣體空腔的導(dǎo)熱系數(shù)、粘度和常壓比熱容。傳熱計(jì)算時(shí)，假設(shè)所充氣體是不輻射/吸收的氣體。表B.1氣體的導(dǎo)熱系數(shù)氣體系數(shù)aW/(m·k)系數(shù)bW/(m·k2)（0時(shí)）W/(m·k)（10時(shí)）W/(m·k)空氣2.873×10-37.760×10-50.02410.0249氬氣2.285×10-35

4、.149×10-50.01630.0168氪氣9.443×10-42.826×10-50.00870.0090氙氣4.538×10-41.723×10-50.00520.0053其中：W/m.K 表B.2氣體的粘度氣體系數(shù)aN·S/m2系數(shù)bN·S/(m2·k2)（0時(shí)）（10時(shí)）空氣3.723×10-64.940×10-81.722×10-51.771×10-5氬氣3.379×10-66.451×10-82.100×10-52.165

5、×10-5氪氣2.213×10-67.777×10-82.346×10-52.423×10-5氙氣1.069×10-67.414×10-82.132×10-52.206×10-5其中：kg/m.s 表B.3氣體的常壓比熱容氣體系數(shù)aJ/(kg·k)系數(shù)bJ/(kg·k2)Cp（0時(shí)）Cp （10時(shí)）空氣1002.73701.2324×10-21006.10341006.2266氬氣521.92850521.9285521.9285氪氣248.09070248.091

6、7248.0917氙氣158.33970158.3397158.3397其中：J/(kg·k) 表B.4 氣體的摩爾質(zhì)量氣體Kg/KmoL空氣28.97氬氣39.948氪氣83.80氙氣131.30附錄C 校準(zhǔn)發(fā)射率的確定C.0.1 標(biāo)準(zhǔn)發(fā)射率n的確定：     鍍膜表面的標(biāo)準(zhǔn)發(fā)射率n應(yīng)在接近正常入射狀況下利用紅外譜儀測(cè)出其譜線的反射曲線，并應(yīng)按照下列步驟計(jì)算出來(lái)：    按照表A.1給出的30個(gè)波長(zhǎng)值，測(cè)定相應(yīng)的反射系數(shù)Rn(i)曲線，取其數(shù)學(xué)平均值，得到283K溫度下的常規(guī)反射系數(shù)。

7、0;       （C.0.1-1）    283K的常規(guī)發(fā)射率由下式給出：        （C.0.1-2）    C.0.2 校正發(fā)射率的確定：        用表C.2給出的系數(shù)乘以常規(guī)發(fā)射率n即得出校正發(fā)射率。 表C.1 用于測(cè)定283K下標(biāo)準(zhǔn)反射率Rn的波長(zhǎng)（單位；微米

8、）序號(hào)波長(zhǎng)序號(hào)波長(zhǎng)15.51614.826.71715.637.41816.348.11917.258.62018.169.22119.279.72220.3810.22321.7910.72423.31011.32525.21111.82627.71212.42730.91312.92835.71413.52943.91514.23050.01)2) 表C.2 校正發(fā)射率與標(biāo)準(zhǔn)發(fā)射率之間的關(guān)系n標(biāo)準(zhǔn)發(fā)射率n系數(shù)/n1)0.031.220.051.180.11.140.21.100.31.060.41.030.51.000.60.980.70.960.80.950.890.941)其

9、它值可以通過(guò)線性插值或外推獲得附錄D 太陽(yáng)光譜、標(biāo)準(zhǔn)光源、視見(jiàn)函數(shù)光譜數(shù)據(jù)表D.0.1 D65標(biāo)準(zhǔn)光源、視見(jiàn)函數(shù)、光譜間隔乘積nmnm3800.00006005.35423900.00056104.24914000.00306203.15024100.01036302.08124200.03526401.38104300.09486500.80704400.22746600.46124500.41926700.24854600.66636800.12554700.98506900.05364801.51897000.02764902.13367100.01465003.34917200.005

10、75105.13937300.00355207.05237400.00215308.79907500.00085409.44577600.00015509.80777700.00005609.43067800.00005708.6891  5807.8994  5906.3306   注：表中的數(shù)據(jù)為D65光源標(biāo)準(zhǔn)的相對(duì)光譜分布D乘以視見(jiàn)函數(shù)V()以及波長(zhǎng)間隔。 表D.0.2 地面上標(biāo)準(zhǔn)的太陽(yáng)輻射相對(duì)光譜分布（nm）（nm）30006800.0128383050.0000576900.0117883100.0002

11、367000.0124533150.0005547100.0127983200.0009167200.0105893250.0013097300.0112333300.0019147400.0121753350.0020187500.0121813400.0021897600.0095153450.0022607700.0104793500.0024457800.0113813550.0025557900.0112623600.0026838000.0287183650.0030208500.0482403700.0033599000.0402973750.0035099500.0213843

12、800.00360010000.0360973850.00352910500.0341103900.00355111000.0188613950.00429411500.0132284000.00781212000.0225514100.01163812500.0233764200.01187713000.0177564300.01134713500.0037434400.01324614000.0007414500.01534314500.0037924600.01616615000.0096934700.01617815500.0136934800.01640216000.01220349

13、00.01579416500.0106155000.01580117000.0072565100.01597317500.0071835200.01535718000.0021575300.01586718500.0003985400.01582719000.0000825500.01584419500.0010875600.01559020000.0030245700.01525620500.0039885800.01474521000.0042295900.01433021500.0041426000.01466322000.0036906100.01503022500.003592620

14、0.01485923000.0034366300.01462223500.0031636400.01452624000.0022336500.01444524500.0012026600.01431325000.0004756700.014023  注：空氣質(zhì)量為1.5時(shí)地面上標(biāo)準(zhǔn)的太陽(yáng)輻射（直射散射）相對(duì)光譜分布出自Table 1，column 5，ISO 9845-1:1992。表中數(shù)據(jù)為標(biāo)準(zhǔn)的相對(duì)光譜乘以波長(zhǎng)間隔。表D.0.3 地面上太陽(yáng)輻射紫外線部分的標(biāo)準(zhǔn)相對(duì)光譜分布（nm）30003050.0018593100.0076653150.0179613200.0297323250.0424663