Answer / swaroop

Vacuum balancing line is required in CEP suction to avoid cavitation and provide positive suction to CEP. As CEP takes suction from HOTWELL (which is also in vacuum), So there will be -ve pressure at suction. As it is well known that at less pressure boiling point of water is also less. Hence the condensate will try to vapourize at low pressure which will cause cavitation and pump will get damaged. Hence a vacuum balancing line ( A canister vent ) is provided at CEP suction to remove vapours which will directly go to condenser(which is in vacuum).


Thanks

Answer / magana

From the little knowledge i have, CEP balancing line it ensures a positive suction to the pump, it act as a vent for the air pockets when charging up the pump.

Answer / shubankar sen

for maintaining the proper vacuum

Answer / niraj kumar

It is necessary to prevent any leakage from the inlet valve of
CEP from the area of CEP whenever any air leackage occured it is much more chances to drop of vaccum so vaccum balancing valve sealed the area from condensed water

a compressor running at 100 rpm gives 40% efficincy speed increase from 200 wt will be the efficincy???????????

2 Answers  

---

Two pumps connected in series , what will be the shape of QH curve ?. What will be the shape if they are in parallel.

1 Answers   Ferrari, IGCAR,

---

if in a centrifugal pump suction, discharge ,& impeller size constant & motor rpm increases . What is the effect on pressure and flow ?

3 Answers  

---

what does a retarder actually when applied in an automobile??

1 Answers   NPCIL,

---

Enumerate some differences between an "orifice" and a "notch". Also tell if "jet" relates more to an orifice or a notch?

2 Answers   Variant,

---

Why water treatment is required for boiler feed water?

3 Answers  

---

plz tell me the practical application of catia?

3 Answers  

---

In Rankine Cycle we use the concept of Tm(mean temperature of heat addition).In actual cycle the efficiency comes as n=1-T2/T1 Taking Tm into consideration it comes as n=1-T2/Tm as T1>Tm so the efficiency for both case will not same for a same cycle. Can anybody explain how it is possible? Advance appreciation for your effort.Thanks

0 Answers   Sail,

---

what is cyclon vibration effect in turbine

0 Answers   NTPC,

---

The stage below saturation is called? Cox chart is used in ....Distillation, evaporation, drying r none?

3 Answers   TCE,

---

if any one who attended the caterpillar interview please send me the sample questions and the areas from which questions are being asked...

0 Answers  

---

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done? A. 564 B. 645 C. 735 D. 756 E. None of these

1 Answers  

---