Menene sigogin naúrar jiki da aka saba amfani da su na compressors na iska?
matsa lamba
Ƙarfin da ke aiki a kan tushe na santimita murabba'in 1 ƙarƙashin madaidaicin matsi na yanayi shine 10.13N.Sabili da haka, madaidaicin yanayin yanayi a matakin teku shine kusan 10.13x104N/m2, wanda yayi daidai da 10.13x104Pa (Pascal, rukunin SI na matsa lamba).Ko amfani da wata naúrar da aka saba amfani da ita: 1bar = 1x105Pa.Mafi girma (ko ƙananan) kuna daga matakin teku, ƙananan (ko mafi girma) matsa lamba na yanayi shine.
Yawancin ma'aunin matsa lamba ana daidaita su azaman bambanci tsakanin matsa lamba a cikin akwati da matsa lamba na yanayi, don haka don samun cikakken matsa lamba, dole ne a ƙara matsa lamba na yanayi na gida.
zafin jiki
Yanayin zafin gas yana da matukar wahala a ayyana a sarari.Zazzabi alama ce ta matsakaicin ƙarfin motsa jiki na motsin kwayoyin halitta na abu kuma shine bayyanar haɗin gwiwa na motsin thermal na adadi mai yawa na kwayoyin.Da sauri ƙwayoyin suna motsawa, mafi girman zafin jiki.A cikakken sifili, motsi yana tsayawa gaba ɗaya.Kelvin zafin jiki (K) ya dogara ne akan wannan al'amari, amma yana amfani da ma'auni iri ɗaya kamar Celsius:
T=t+273.2
T = cikakken zafin jiki (K)
t=Celsius zafin jiki (°C)
Hoton yana nuna dangantakar dake tsakanin zafin jiki a Celsius da Kelvin.Domin Celsius, 0° yana nufin wurin daskarewa na ruwa;yayin da Kelvin, 0 ° shine cikakken sifili.
Ƙarfin zafi
Zafi wani nau'i ne na makamashi, wanda aka bayyana a matsayin makamashin motsa jiki na ƙwayoyin cuta marasa ƙarfi.Ƙarfin zafi na abu shine adadin zafin da ake buƙata don ƙara yawan zafin jiki ta raka'a ɗaya (1K), wanda kuma aka bayyana shi azaman J/K.Ana amfani da ƙayyadaddun zafin wani abu sosai, wato, zafin da ake buƙata don yawan adadin abu (1kg) don canza yanayin zafin naúrar (1K).Naúrar takamaiman zafi shine J/(kgxK).Hakazalika, naúrar ƙarfin zafi na molar shine J/(molxK)
cp = takamaiman zafi a matsa lamba
cV = ƙayyadaddun zafi a ƙarar ƙima
Cp = ƙayyadaddun zafi mai zafi a matsa lamba
CV = ƙayyadaddun zafi na ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙarfi
Ƙaƙƙarfan zafi a matsa lamba na yau da kullum yana da girma fiye da ƙayyadaddun zafi a ƙararrawa akai-akai.Ƙaƙƙarfan zafi na abu ba koyaushe ba ne.Gabaɗaya magana, yana ƙaruwa yayin da zafin jiki ya tashi.Don dalilai masu amfani, ana iya amfani da matsakaicin ƙimar ƙayyadaddun zafi.cp≈cV≈c don ruwa da abubuwa masu ƙarfi.Zafin da ake buƙata daga zafin jiki t1 zuwa t2 shine: P=m*c*(T2 –T1)
P = Ƙarfin zafi (W)
m = yawan ruwa (kg/s)
c= takamaiman zafi (J/kxK)
T= zafin jiki (K)
Dalilin da yasa cp ya fi girma fiye da cV shine fadada gas a ƙarƙashin matsin lamba.Adadin cp zuwa cV ana kiransa isentropic ko adiabatic index, К, kuma aiki ne na adadin atom a cikin kwayoyin halitta.
nasara
Ana iya ayyana aikin injina azaman samfurin ƙarfin da ke aiki akan wani abu da nisan tafiya ta hanyar ƙarfin.Kamar zafi, aiki wani nau'in makamashi ne wanda za'a iya canzawa daga wani abu zuwa wani.Bambanci shine cewa karfi ya maye gurbin zafin jiki.Ana kwatanta wannan ta iskar gas da ke cikin Silinda ana matsawa da fistan mai motsi, watau ƙarfin tura fistan yana haifar da matsawa.Don haka ana canza makamashi daga fistan zuwa gas.Wannan canjin makamashi shine aikin thermodynamic.Za a iya bayyana sakamakon aikin ta nau'i-nau'i da yawa, kamar canje-canje a cikin makamashi mai yuwuwa, canje-canje a makamashin motsa jiki, ko canje-canje a cikin makamashin zafi.
Ayyukan injina da ke da alaƙa da canjin ƙarar gas ɗin da ke gaurayawan iskar gas shine ɗayan mahimman matakai a cikin injiniyoyin thermodynamics.
Ƙungiyar aiki ta duniya ita ce Joule: 1J=1Nm=1Ws.
iko
Ƙarfi shine aikin da ake yi a kowane lokaci naúrar.Yana da adadin jiki da ake amfani dashi don ƙididdige saurin aiki.Naúrar SI ɗin sa shine watt: 1W=1J/s.
Misali, wutar lantarki ko makamashin da ke kwarara zuwa mashigar motar kwampreso ya yi daidai da adadin zafin da aka fitar a cikin tsarin da zafin da ke aiki da iskar gas da aka matsa.
Gudun ƙara
Matsakaicin adadin kwararar tsarin ma'auni ne na ƙarar ruwa a kowane lokaci naúrar.Ana iya ƙididdige shi azaman: yanki na giciye wanda kayan ke gudana ya ninka ta matsakaicin saurin gudu.Naúrar ƙasa da ƙasa na kwararar juzu'i shine m3/s.Duk da haka, ana amfani da naúrar lita/ na biyu (l/s) a cikin kwampreso volumetric kwarara (wanda ake kira flow rate), wanda aka bayyana azaman daidaitaccen lita/ na biyu (Nl/s) ko iska mai gudana kyauta (l/ s).Nl/s shine sake ƙididdige yawan kwararar ruwa a ƙarƙashin "daidaitaccen yanayi", wato, matsa lamba shine 1.013bar (a) kuma zafin jiki shine 0 ° C.Madaidaicin naúrar Nl/s ana amfani da shi musamman don tantance yawan kwararar taro.Gudun iska na kyauta (FAD), fitarwar fitarwa na kwampreso yana canzawa zuwa kwararar iska a ƙarƙashin yanayin shigarwa (matsin shigarwa shine 1bar (a), zazzabi mai shiga shine 20 ° C).
Sanarwa: An sake buga wannan labarin daga Intanet.Abubuwan da ke cikin labarin don ilmantarwa ne kawai don dalilai na sadarwa.Air Compressor Network ya kasance tsaka tsaki dangane da ra'ayoyin da ke cikin labarin.Haƙƙin mallaka na labarin na ainihin marubucin ne da dandamali.Idan akwai wani cin zarafi, da fatan za a tuntuɓe mu don share shi.