Answer / mohsin moulvi

Water Hammering in case of turbines may be explainedas:
Turbines are operated at four levels 1.) 1/4 throttle 2).
1/2 throttle 3.) 3/4 throttle 4.) full throttle.
when the valve opening opening in the turbine is suddenly
closed the water coming in from the penstock makes an
impact on the shutter which is closing the gateway. as a
result of this a back pressure is set up in the pipeline.
The phenomenon of water impacting on the valve shutte in
known as Water hammer.
All suggesstions welcome I am not sure about steam but
common sense says that in steam pipeline the phenomenon be
the same only that fluid be replaced with steam

Answer / devanesan

in the water flow air will cause for hammering because of
dencity difference of liquid and air. both will have
different velocity the water hit the pipe wall and
hammering is happening. in the steam line also the same
phenomina happening. and one more is if the pipe line is
cool then the steam contrased when come contact with cool
pipe. it also cause for hammering.
there should not be any different dencity fluid while flow.

Answer / salai jeyaveeran

when a hot steam is passed in a pipe containing a
condensate water particle due to sudden variation in
temperature the particle starts to expand vigarously causes
a sound heard like hammering

What is the difference between nuclear fission and fission chain reaction?

0 Answers  

---

if a member of mass 100 gram travelling with 10 m/s hit another body,and the final velocity is 59 m/s.what is the mass of second member

4 Answers   NTPC,

---

What are the properties of fuel oil?

2 Answers  

---

i am appearing for the interview of the company SANDVIK??so if u can send me some questions or suggestions on how to prepare,it would be of great help to me.u can send the above at ekjain@yahoo.co.in.thanking you.

0 Answers   Sandvik,

---

what is inlet gas pressure of ge 9 fa gas turbine ?

0 Answers   Aegis,

---

What color are thermal oil piping lines?

0 Answers  

---

what is punching force required for embossing of depth 3.5mm and diameter 58mm

0 Answers   Omkar Solar System,

---

what is the rpm of Turbocharger of Cummins KTA50G3 Diesel Engine?/ Normally What is the rpm of Turbocharger for any 1 MW Engine?

0 Answers   HMT,

---

Is OHNS steel is equivalent to O1 tool steel? Suppliers give OHNS material for AISI O1 STEEL telling that both are equivalent materials. Is this correct?

0 Answers   PH.D Interview,

---

How to conduct the Hydro & Pnumatic test as per DIN & ASME sTANDERS?

1 Answers  

---

What are the advantage and disadvantage of using lpg in a car?

0 Answers  

---

WHAT IS THE DIFFERENCE BETWEEN IMPACT FORCE & SUDDEN FORCE.TELL ME WITH EXAMPLE IF YOU KNOW

2 Answers  

---