RO-AN
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The ANR bank contains many sets with original names and codes, including navigation, safety and equipment topics. Select a module by name or use question search.
“ANR — 10_IFAG — RO-AN” contains 115 questions across 1 collection.
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Calculati randamentul unei caldari cu supraincalzitor intermediar izobar pentru care se cunosc urmatoarele date: presiunea de vaporizare p1=60 bar, presiunea intermediara p2=0,25 p1, temperaturile de supraincalzire t si= 400 grade C, temperatura apei de alimentare taa=tsat-100 grade C, debitul nominal de abur D=20 to/h, randamentul vaporizatorului de 55%, puterea calorifica inferioara a combustibilului Qi=40MJ/kg.Destinderea in prima treapta a turbinei se considera adiabata...
One correct answer
Determinati randamentele si parametrii initiali ale unei turbine. Date cunoscute: temperatura aburului evacuat T=323[K]; titlul aburului dupa destindere politropica X pol=0,95; viteza aburului la iesirea din ajutaj(politropica) W pol=1000[m/s]; diferenta de titlu 0,1; apa de alimentare se preincalzeste pana la valoarea taa=tsat-100 grade C.
One correct answer
Determinati diferenta de consum orar de combustibil pentru o caldarina care produce 2 to/h abur saturat cu p=1,1MPa, este alimentata cu combustibil cu Qi1=40MJ/Kg, randamentul de transfer 70 %, temperatura apei de alimentare t aa = 60 grade C, cand se alimenteaza cu un tip de combustibil cu Qi2= 10 200 Kcal/Kg...
One correct answer
Determinati debitul specific de apa de mare pentru condensare de la instalatie de forta cu abur. Date cunoscute: presiunea initiala p1=40[bar]; temperatura initiala t1=400 [ grade C]; debitul nominal Dn=15[t0/h]; randamentul intern 0,85; presiunea de condensare Pcd=20[kPa]; incalzirea izobara generata de pierderi 50[kj/kg]; diferenta de temperatura pentru apa de mare 6[ grade C]; caldura specifica a apei de mare cam=4,2[kj/kgK].
One correct answer
Determinati parametrii finali ai aburului pentru o turbina cu reglare prin laminare pentru varianta de functionare de 75% din puterea nominala Pn =5000[CP]. Date cunoscute: presiunea initiala p1=40[bar]; temperatura initiala t1=tsat+150 grade C; randamentul intern 0,8; debitul de abur D=15[t0/h].
One correct answer
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