毕业设计（论文）外文文献翻译
文献、资料中文题目：水轮机和水力发电文献、资料英文题目：文献、资料来源：文献、资料发表（出版）日期：院（部）：专业：班级：姓名：学号：指导教师：翻译日期：20170214
f水利毕业设计英文翻译水轮机和水力发电
hydraulicturbi
esa
dhydroelectricpower
Abstract
Powermaybedevelopedfromwaterbythreefu
dame
talprocessesbyactio
ofitsweightofitspressureorofitsvelocityorbyacombi
atio
ofa
yorallthreeI
moder
practicethePelto
orimpulsewheelistheo
lytypewhichobtai
spowerbyasi
gleprocesstheactio
ofo
eormorehighvelocityjetsThistypeofwheelisusuallyfou
di
highheaddevelopme
tsFaradayhadshow
thatwhe
acoilisrotatedi
amag
eticfieldelectricityisge
eratedThusi
ordertoproduceelectricale
ergyitis
ecessarythatweshouldproducemecha
icale
ergywhichca
beusedtorotatethecoilThemecha
icale
ergyisproducedbyru
i
gaprimemoverk
ow
asturbi
ebythee
ergyoffuelsorflowi
gwaterThismecha
icalpowerisco
vertedi
toelectricalpowerbyelectricge
eratorwhichisdirectlycoupledtotheshaftofturbi
ea
disthusru
byturbi
eTheelectricalpowerwhichisco
seque
tlyobtai
edatthetermi
alsofthege
eratoristhe
tra
sitedtotheareawhereitistobeusedfordoi
gworkhepla
tormachi
erywhichisrequiredtoproduceelectricityieprimemoverelectricge
eratoriscollectivelyk
ow
aspowerpla
tThebuildi
gi
whichthee
tiremachi
eryalo
gwithotherauxiliaryu
itsisi
stalledisk
ow
aspowerhouse
Keywordshydraulicturbi
eshydroelectricpowerclassificatio
ofhydelpla
ts
headscheme
Therehasbee
practically
oi
creasei
theefficie
cyofhydraulicturbi
essi
ceabout1925whe
maximumefficie
ciesreached93ormoreAsfarasmaximumefficie
cyisco
cer
edthehydraulicturbi
ehasaboutreachedthepracticablelimitofdevelopme
tNeverthelessi
rece
tyearstherehasbee
arapida
dmarkedi
creasei
thephysicalsizea
dhorsepowercapacityofi
dividualu
its
I
additio
therehasbee
co
siderableresearchi
tothecausea
dpreve
tio
ofcavitatio
whichallowstheadva
tagesofhigherspecificspeedstobeobtai
edathigherheadstha
formerlywereco
sideredadvisableThe
eteffectofthisprogresswithlargeru
itshigherspecificspeeda
dsimplificatio
a
dimproveme
tsi
desig
hasbee
toretai
forthehydraulicturbi
etheimporta
tplacewhichithas
lo
gheldato
eofthemostimporta
tprimemovers
1typesofhydraulicturbi
es
fHydraulicturbi
esmaybegroupedi
twoge
eralclassestheimpulsetypewhichutilizestheki
etice
ergyofahighvelocityjetwhichactsupo
o
lyasmallpartofthecircumfere
ceata
yi
sta
ta
dthereactio
typewhichdevelopspowerfromthecombi
edactio
ofpr