1、逆流對數平均溫差公式t=(T1-t2)-(T2-t1)/LN(T1-t2)/(T2-t1)并流對數平均溫差公式t=(T1-t1)-(T2-t2)/LN(T1-t1)/(T2-t2)逆流對數平均溫差計算T1T2t1t2t逆流對數平均溫差計算T1計算結果10060303545.2670240熱量公式Q=Cp*M*t蒸汽熱量公式Q=r*M(表壓4Kg/cm2)熱量計算Cp(Kcal/Kg.C)M(Kg)t(C) Q(Kcal)熱量計算r(Kcal/Kg)計算結果0.459180045.26702 37399.61計算結果505換熱面積公式A=Q/(K*t)換熱面積公式A=Q/(K*t)面積計算Q(K

2、cal)K(Kcal/m2.h.C)t(C)A(m2)面積計算 Q(Kcal)計算結果37399.6180045.26702 1.03275計算結果505000冷卻水量M=Q/(Cp*t)冷卻水量M=Q/(Cp*t)水量計算Q(Kcal)Cp(Kcal/Kg.Ct(C)M(Kg)水量計算 Q(Kcal)計算結果37399.61157479.922計算結果505000算數平均溫差公式t=(T1-t2)-(T2-t1)/2T2t1t2t逆流算數平均溫差公式T1T2t1t23051026.80414030510M(Kg)Q(Kcal)1000505000K(Kcal/m2.h.C)t(C)A(m2)

3、80045.26702 13.94503Cp(Kcal/Kg.Ct(C)M(Kg)15101000t=(T1-t1)-(T2-t2)/LN(T1-t1)/(T2-t2)Q=r*M(表壓4Kg/cm2)A=Q/(K*t)M=Q/(Cp*t)t27.5t=(T1-t2)-(T2-t1)/2據據生生產產經經驗驗可可知知，傳傳熱熱系系數數大大致致范范圍圍如如下下： 換熱器的K值范圍管 內管 間K（W/.C)氣體氣體1035水氣體1060水 水 8001750水 水蒸汽11004000水溶液（210-3pa.s)水蒸汽5802800在制鹽蒸發中，加熱室均為管間水蒸汽，管內水溶液，K值一般在1400250

4、0（W/.C）。對對不不同同管管材材，其其K K值值選選用用范范圍圍如如下下：不不同同材材料料的的K K值值材料 K值（W/.C)123碳鋼200018001600銅管250021001800銅鎳合金250021001800不銹鋼 200018001600鈦管250021001800K(W/m2.C)8.630.18.651.668.8150594634409463440498.8240812042150414001500150014001500據據生生產產經經驗驗可可知知，傳傳熱熱系系數數大大致致范范圍圍如如下下： 換熱器的K值范圍K（W/.C)10351060800175011004000

5、110040005802800在制鹽蒸發中，加熱室均為管間水蒸汽，管內水溶液，K值一般在14002500（W/.C）。對對不不同同管管材材，其其K K值值選選用用范范圍圍如如下下：不不同同材材料料的的K K值值K值（W/.C)壓壓力力單單位位換換算算牛頓/米2 （N/)或帕斯卡（Pa）巴（bar) 公斤/厘米2（kg/c)或工程大氣壓（at）磅/英寸2（1b/in2）大氣壓 （atm） （標準大氣壓） 110-5.1.0210-51.4510-49.86910-6105.11.0214.50.98699.8071040.9807114.220.96786.8951036.89510-27.03

6、110-216.80510-21.0131051.0131.03314.711.3331021.33310-31.3610-31.93410-21.31610-33.3861033.38610-23.45310-20.49123.34210-29.7989.79810-59.99110-51.42110-39.6710-52.4891022.48910-32.53810-33.60910-22.45610-31達因/厘米2（dyn/c)=1巴利（barye)=1微巴（wbar)=10-6巴（bar)1毫米水柱（mmH2O)(4)=1公斤/米2（kg/m2)1毫米汞柱（mmH2O)(0)= 1乇

7、（torr)1磅達/英尺2（pdl/ft2)=1.488牛頓/米2（N/）傳傳熱熱系系數數單單位位換換算算焦耳/米2.秒.KJ/(.S.K)或瓦/米2.KW/(.K)千卡/米2.時.kcal(.h.)卡/厘米2.秒cal/(c.s.)英熱單位/英尺2.時.。FBtu/(ft2h.。F 10.85982.38810-50.17611.16212.77810-50.20484.1871043.6104173735.6784.8821.35610-41擴擴散散系系數數單單位位換換算算厘米/2秒（/s）米2/時（/h）英尺2/時（ft2/h)英尺2/秒in2/s10.363.8750.1552.778

8、110.760.43060.25810.092910.046.4522.323251表表面面張張力力單單位位換換算算達因/厘米（dyn/cm)克/厘米(g/cm)公斤/米（kg/m)磅/英尺(lb/ft)11.0210-31.0210-46.85410-5980.710.16.7210-298071010.6721459214.881.4881溫溫度度換換算算公公式式攝氏度華氏度蘭金/度。R開爾文K9/5+329/5+491.67+273.15 5/9(-32)+459.675/9(+459.67)5/9(。R-491.67)。R-459.67。R5/9。RK-273.159/5K-459.6

9、79/5KK功功、能能和和熱熱量量單單位位換換算算焦耳（J）公斤.米（kg.m)米制馬力.時（PS.b）米制馬力.時（HP.b）千瓦.時（kw.h)10.1023.77710-73.72510-72.77810-79.80713.70410-63.65310-62.72410-62.6481062.710510.98630.73552.6851062.7381051.01410.74573.61063.6711051.361.34114187426.91.58110-31.55910-31.16310-31055107.63.98510-43.9310-42.9310-41.3560.1383

10、5.12110-75.0510-73.76810-7體體積積流流率率單單位位換換算算米3/時（m3/h)米3/分（m3/min)米3/秒（m3/s)英尺3/時（ft3/h)英尺3/秒（ft3/s)11.66710-22.77810-435.319.8110-36011.66710-32.1191030.58863.61036011.27110535.312.83610-24.7210-47.86610-612.77810-41.0191021.6992.83210-23.610310.27284.54610-37.57710-59.6322.67610-30.22713.78510-36.30

11、910-58.0212.22810-3重重量量和和質質量量流流率率單單位位換換算算公斤/秒（kg/s)公斤/時（kg/h)磅/秒(lb/s)磅/時（lb/h) 噸/日（t/d)13.61032.2057.93710386.42.77810-416.12410-42.2052.410-20.45361.63310313.610339.191.2610-40.45362.77810-411.08910-21.15710-241.670.0255291.8613.47210-50.1257.65610-50.2756310-3動動力力粘粘度度單單位位換換算算公斤.秒/米2（kg.s/)牛頓.秒/米2

12、（N.s/)或帕.秒（Pa.s)泊（P）或克/（厘米.秒）g/(cm.s)厘 泊（cP）磅.秒/英尺2（lb.s/ft2)19.8198.19.811030.2050.102110 103.20.910-31.0210-20.11 10 220.910-41.0210-4 10-3 10-2120.910-54.8847.88478.84.78810411達因.秒/厘米2（dyn.s/c)=1泊（P）；1牛頓.秒/米2（N.s/）=1公斤（質）/米.秒kgm/(m.s)=3600公斤（質）/米.時kgm/(m.h)運運動動粘粘度度單單位位換換算算厘米/2秒（/s）或沲（St)米2/秒（/s)米

13、3/時（/h)英尺2/秒（ft2/s)英尺2/時（ft2/h)1 10-40.361.07610-33.875 104.13.610310.763.8751042.7782.77810-412.9910-310.769299.2910-23.34610213.61030.2582.5810-59.2910-22.7810-411厘沲（cst)=10-2沲（st）功功率率單單位位換換算算瓦 （W）千 瓦（KW）米制馬力（PS）英制馬力（HP）公斤.米/秒 （kg.m/s)1 10-3 1.3610-31.34110-30.10210 3 11.361.341102735.50.735510.98

14、6375745.70.74571.014176.049.8079.80710-31.33310-21.31510-2141874.1875.6925.614426.910551.0551.4341.415107.61.3561.35610-31.84310-31.8210-30.1383毫米汞柱（0）（mmHg) 英寸汞柱（0）（inHg) 毫米水柱（15） （mmH2O)英寸水柱（15）（inH2O 7.50110-32.95310-40.10214.01810-3750.129.531.021104401.8735.628.961.001104394.151.712.0367.037102

15、27.776029.921.034104407.213.93710-213.610.535725.413.45610213.617.34910-22.89310-313.93710-21.8677.34910-225.41壓壓力力單單位位換換算算1達因/厘米2（dyn/c)=1巴利（barye)=1微巴（wbar)=10-6巴（bar)1毫米水柱（mmH2O)(4)=1公斤/米2（kg/m2)1毫米汞柱（mmH2O)(0)= 1乇（torr)1磅達/英尺2（pdl/ft2)=1.488牛頓/米2（N/）千卡（kcal）英熱單位（Btu）英尺.磅（ft.lb)2.38910-49.47810-4

16、0.73762.34210-39.29510-37.233632.525101.953106641.22544.41.98106859.834122.65510613.9683.0871030.2521778.23.2410-41.28510-31應加侖/分（Imp.gal/min)美加侖/分 （U.S.gal/min)3.6674.4032.19981022.6421021.421041.5851040.10380.12473.7371024.48810211.2010.83271功功、能能和和熱熱量量單單位位換換算算體體積積流流率率單單位位換換算算重重量量和和質質量量流流率率單單位位換換算

17、算噸/年（8000小時） （t/a)2.8810481.3061043.6293.3331021千卡/秒（kcal/s)英熱單位/秒（Btu/s）英尺.磅 /秒（ft.lb/s)2.3910-49.47810-40.73760.2390.9478737.60.17570.6972542.50.17810.7068550功功率率單單位位換換算算2.34210-39.29510-37.23313.96830870.2521778.23.2410-41.28510-31 壓壓力力、應應力力（SI）帕斯卡paN/ m-1.kg.s-2達因/平方厘米dyn/c公斤（力）/平方厘米（工程大氣壓 kg(f)

18、/c大氣壓（標準大氣壓）atm磅（力）/平方英尺ld(f)/ft21101.019720E-059.869230E-062.088530E-021.00E-0111.02E-069.8690E-072.08853E-039.806650E+049.806650E+0510.967841020481.013250E+051.013250E+061.033231211747.8803478.8034.882000E-044.725000E-041 6.894760E+036.894760E+047.030690E-026.804600E-021441.333220E+021.333220E+031

19、.360000E-031.316000E-032.78453.38639E+033.38639E+044.45300E-023.34200E-027.07267E+019.79100E+039.79100E+041.00000E-019.67700E-022.04600E+022.48840E+022.48840E+032.53800E-032.45600E-035.19800E+001.00000E+051.00000E+061.01972E+059.86923E-012.08985E+03能能、功功、熱熱量量（SI)焦耳（J）N.m.kg.s-2公斤（力）-米kg(f).m英尺-磅（力）f

20、t.lb(f)千瓦-時kw.h馬力（英）-時hp.h11.01972E-017.37600E-012.77778E-073.72506E-079.8066517.23300E+002.72400E-063.65300E-061.3561.38300E-0113.76600E-075.05100E-073.60000E+063.67100E+052.65500E+0611.34100E+002.68500E+062.73700E+051.98000E+067.45700E-0111.01300E+021.03300E+017.47400E+012.81500E-053.77500E-054.18

21、680E+034.26900E+023.08800E+031.16300E-031.56000E-031.05480E+031.07600E+027.78200E+022.93100E-043.93000E-041.89860E+031.93700E+021.40100E+035.27600E-047.07400E-041.00000E-071.01972E-087.37600E-082.77800E-143.72500E-14磅（力）/平方英寸ld(f)/ft2汞柱（0）水柱（15.5）毫米（Torr) mmHg英寸inHg米mH2O英寸inH2O1.450380E-047.500620E-

22、032.953E-041.021340E-044.019430E-031.45000E-057.50062E-042.95300E-051.02134E-054.019430E-0414.2234735.628.9610.01394.114.69676029.9210.34407.16.944000E-030.3591311.413900E-024.887000E-030.1924151.712.0360.703627.71.934000E-0213.937010E-021.361000E-020.53584.91200E-012.54000E+011.00000E+003.45600E-011.36100E+011.42200E+007.34300E+012.89300E+001.00000E+003.93700E+013.61000E-021.86600E+007.36000E-022.54000E-021.