冷卻器計算公式

項目,項目,數(shù)值,單位,,

油冷卻器熱交換量,潤滑油比熱容C(常壓下)32＃,0.51,kcal/(kg.℃),46＃/,

,潤滑油密度ρ(常壓下),900,kg/m3,0.7MPa空氣密度,

,潤滑油流量Q,99,l／ｍｉｎ,,

,進油溫度T1,85,℃,,

,出油溫度T2,57.6,℃,"0度,標準氣壓下空氣密度",1.293

,油冷卻器熱交換量P,74705.004,kcal/h,"20度,0.7氣壓下空氣密度",2.293

,油冷卻器熱交換量P,86.88648988,kw,,

油冷卻器換熱面積A,油冷傳熱系數(shù)K,160,kcal/(m2.h.℃),,

,冷卻風進口溫度T3(環(huán)境溫度),35,℃,,

,冷卻風出口溫度T4,45,℃,,

,油和冷卻風之間的平均溫差△ｔ,30.47661496,℃,,

,油冷卻器換熱面積A,15.32014876,m2,,

氣冷卻器熱交換量,"空氣比熱容C(標準大氣壓下,20℃)",0.2427,kcal/(kg.℃),,

,"空氣密度ρ(標準大氣壓下,20℃)",1.18,kg/m3,,

,空氣流量Q(進氣壓力下),24,m3／ｍｉｎ,,

,進氣溫度T1,85,℃,,

,出氣溫度T2,45,℃,,

,氣冷卻器熱交換量P,16495.8336,kcal/h,,

,氣冷卻器熱交換量P,19.18566364,kw,,

氣冷卻器換熱面積A,油冷傳熱系數(shù)K,168,kcal/(m2.h.℃),,

,冷卻風進口溫度T3(環(huán)境溫度),35,℃,,

,冷卻風出口溫度T4,45,℃,,

,氣和冷卻風之間的平均溫差△ｔ,21.64042561,℃,,

,氣冷卻器換熱面積A,4.537317679,m2,,

冷卻風量的計算,進排風溫差,10,℃,,

,空氣比熱容C,0.24,kcal/(kg.℃),,

,"空氣密度ρ(標準大氣壓下,20℃)",1.18,kg/m3,,

,冷卻風量的計算,32203.68559,m3／h,,

風機功率計算,風壓,120,Pa,,

,風扇效率,0.5,,,

,風機功率計算,2146.912373,W,,

油側(cè)冷卻面積,油側(cè)經(jīng)濟質(zhì)量流速,200,kg/(m2.s),,

,油側(cè)經(jīng)濟流速,0.222222222,m/s,,

,油側(cè)壓力損失,0.04,MPa,,

,油冷高度,125,mm,,

,油側(cè)單根通道截面積,0.000125,m2,,

,油側(cè)通道總面積,0.007425,m2,,

,油側(cè)通道數(shù),59.4,個,,

,油側(cè)通道間隔,10,mm,,

,翅片間隔,3.6,mm,,

,總油側(cè)單條翅片長度未壓縮,122.5611901,m,,

,總油側(cè)單條翅片長度已壓縮,32.44266797,m,31,氣道

,每根通道長度,0.546172861,m,10,油道

,油側(cè)冷卻面積,0.454197352,m2,,

氣側(cè)冷卻面積,氣側(cè)經(jīng)濟質(zhì)量流速,50,kg/(m2.s),,

,氣側(cè)經(jīng)濟流速,6.053268765,m/s,,

,氣側(cè)壓力損失,0.01,MPa,,

,氣冷高度,125,mm,,

,氣側(cè)單根通道截面積,0.00025,m2,,

,氣側(cè)通道總面積,0.00826,m2,,

,氣側(cè)通道數(shù),33.04,個,,

,氣側(cè)通道間隔,10,mm,,

,翅片間隔,3.6,mm,,

,總氣側(cè)單條翅片長度未壓縮,36.29854143,m,,

,總氣側(cè)單條翅片長度已壓縮,9.60843