Answer / santosh raikar

as the bad insulation or radiation heat transfer
condensation takes place in steam pipes. due to the
condensation water vapors accumulate in pipes, if these are
not separated/removed from the system, hammering takes
place. this is due to the density difference b/w steam and
water vapor there by difference in flow rate. this
difference flow rate causes resistance and sudden hammering
takes place.
to overcome this proper insulation to be provided, the
sloping of 12mm to 3 mtrs of pipe to be provided and the
most imp is proper type of steam trap to draining the
condensate.

Answer / anand swami

THIS IS DUE TO RAPID CONDENSATION OF STEAM AS LINE IS COLD
THAT WILL CREATE VACUUM AND DUE TO THIS WATER DROPS MOVES
THROUGH HIGH VELOCITY AND COLLIDE WITH PIPE WALLS CAUSING
SEVER HAMMERING

TO AVOID ONE SHOULD CHARGE THE LINE FIRST SLOWLY

Answer / vijay sinha

hammering occur in piprline due to condensation of vapour
if we are not removing condensate.so steam trap should be
used

Answer / arockia

As two phase medium flow in a line hammering will occures,
as water and steam flows water hammering occures, by
providing steam trap we can avoid.

Tell me on steel

0 Answers   Tata Steel Limited,

---

What is space heater?

0 Answers   RRB,

---

where impulse turbine & reaction turbine are used?

2 Answers  

---

How to exite natural frequencies in a overhung rotor

0 Answers   Honeywell,

---

calculate the expantion of steel bar 2,5 long if its temperature rises from 20 degrees to 250 degrees and its co effient of expantion is 0,000011 mm degrees

0 Answers  

---

What's the difference between absolute vibration & relevant vibration regarding Boiler Feedwater Pump ?

0 Answers  

---

What do you understand by timed cylinder lubrication ?

0 Answers  

---

What will happen if the centrifugal pump has no pressure?

6 Answers  

---

how works optical pyrometer ?

1 Answers  

---

Internal energy of a substance depends on

2 Answers   Bhel,

---

ADVANTAGE &DISADVANTAGE OF USING LPG IN CAR?

0 Answers   MAHINDRA,

---

What are the objectives of NVH (Noise Vibration and Harshness) analysis?

3 Answers   BARC,

---