Тепловая схема энергоблока К-330 ТЭС
Дипломная работа - Физика
Другие дипломы по предмету Физика
38;????? ??????
?= p?7+D p?=0.057+0.03=0.087 ???=Q(p?-?)/??=0.1976 *(1.08-0.087)/0.73=268.8 k??
??? ?? Dp? =p?-p=1.08-0.087=0.993 ??.
??, ????? ????? ???, ??????? ????:
?=Dp? /(rg)=0.993106/(10009.81)=101 ? [6]
? ??? ??? 2 ??? 100% ??????? ? ???500-150.
??? 2.8
??????? ???????? ???
?? V, ??. ?3/?? H, ???? ?, %??? ????, ?/?????? N,??????? ???? ?, ?5001507515002722,5
.9.3 ??? ???????? ???
???? ? ???????? ???????? ?????? ????? ??? ? ?? ??????? ???? ?????? ????.
? ??? ?????? ???????? 2 ???????? ??? 50% ??????? ??, ?? ????. ??? ??? ????? ? ?? ??????, ???? ??? ??, ?? ??????? ?? ??.= 60 ????? ??????
= mD =60*0.5219*283.6=60*278.60=8881 ?/? ?= 1.2D =1.2 *8881=10657.2 ?/?= D? /?=10657.2/1000=10.6572 ?3/?=38365.9 ?3/
???? 2 ???????? ??? ??5-145
??? 2.9
??????? ???????? ??? [5]
?? V, ??. ?3/?? H, ???? ?, %??? ????, ?/?????? N,??????? ???? ?, ?25900- 4104012.5-7.778-80365785-129611.2-13
.10 ??? ???????
????? ?-330-240-2 ???????? ???????? 300-???-3; ??????? ??????, ????? ??. ???? ??????? ?? ??, ???. ????? ???? ?????? ??? ???????? ? ? ? ??? ????. ???? ????? ? 2 ????? ?, ?? ??? ???? ???????? ?? ?? ????? ?, ?. ?. ??????? ?????.
2.11??? ?????? ????? ?????????? ????
? ?????????? ???????? ?????????? ???? ???? ? ?????? ??, ?????? ??? ?????. ? ????? ?? ????? ???????? ??? ?????????? ?????? ?? ?? ???? [6].
.11.1 ??? ???.
??????? ?? ???? ??????? ????? ???????? ????? ????? ????. ????? ?? ????? ? ????? ???????? ???.
?????? ???? ????? ???? ?? ????:
??? 2.10
???????D?, ?/cP?, ??P?, ??t?.??, Ct?.???, Ct?, C??? -4197.52.30.458114.8143.8146.8??? -3197.52.40.20085.5114.8117.8??? -2197.52.40.06055.885.585.5??? -1197.52.50.019826.755.858.8
???-4
????? ????????? ?? ?? ???????:
,???
Dt??4=(Dt?-Dt?)/[ln(Dt?/Dt?)]=
=[(146.8-114.8)-( 146.8-143.8)]/ln[(146.8-114.8)/( 146.8-143.8)]=12.25 0?
? ?????? ??? ??? Q= D(h5- h6)= k F?/Dt?? ???? ??? ???, ??????? ????? ?? ???????:
4 = D(h5- h6)= 197.5 (608.25 -483.09)=24.7 ???
??? F?/: ?????? k=2300 ??/(?20?)
4?/= Q4 /( k Dt??4)= 24.7 *106 /(2.3*10312.25)=876.7 ?2
???????? ? ?????? ? ???? ?:
4???/=1.1 F4?/=1.1 876.7 =964.37 ?2
? ??? ??? ?????? ??-1000-29-7-III.
???-3:
Dt??3= (Dt?-Dt?)/[ln(Dt?/Dt?)]=
=[(117.8-85.5)-(117.8-114.8)]/ln[(117.8-85.5)/( 117.8-114.8)]=12.33 0?3= D(h6- h7)= 197.5 (483.09-359.5)=24.4 ???
??? F3?/: ?????? k=2300 ??/(?20?)3?/= Q3 /( k Dt??3)= 24.4*106 /(2.3*10312.33)=860 ?2
???????? ? ?????? ? ???? ?: 3???/=1.1 F3?/= 1.1 1424.882 =946 ?2
? ??? ??? ?????? ??-1100-25-6-1.
???-1:
Dt??1= (Dt?-Dt?)/[ln(Dt?/Dt?)]=
=[(58.8-26.7)-( 58.8-55.8)]/ln[(58.8-26.7)/( 58.8-55.8)]=12.28 0?1= D(h8- h)= 197.5 (236.3-112.11)=24.5 ???