Answer / sangilisaravanan

FIN TUBES INCREASES THE SURFACE AREA OF HEATING.
SO FOR THE REQUIRED QUANTITY OF HEAT TRANSFER THE EXCHANGER
MAY BE DESIGNED SMALL IN COMPARED WITH FINLESS TUBE
EXCHANGER

Answer / s.shanmugam

Fin tubes are usually used for cooling.As we see in
automobile engines constructed with fins.

Answer / anshuman

it depends on the kind of liquid to be heated and steam
requirment if high heat transfer is required with low
cosumpsion of steam we can use fin tubes

Answer / jagadesh

it is not required to heat up liquid in fin tubes by steam
because liuid has to pass trhough tube side. so if
temperature difference is more steam will undergoes
condensation and will lead high pressure drop and less heat
transfer.

Answer / dp

It depends on the htc values on the shell side. If HTC on
the shell side is higher than the tube side adding tubes
wont make much difference in terms of total heat transfer.
If the HTC value on the tube side is higher than the shell
side, adding fins will enhance the total heat transfer. For
suppose if steam is flowing on the tube side and its phase
changes during the process its good to provide fins over the
tubes. If it is other way adding fins wont make much
difference except increasing cost of the exchanger.

Answer / ahmedcool

FINS ARE USED TO INCREASE SURFACE AREA,IS LIKELY TO
TRANSFER HEAT FROM HOTTER BODY TO COLDER BODY.FINS ARE NOT
REQUIRED IN CASE OF STEAM HEATING.

Answer / amol deshpande

Yes, fin tubes are necessary. Fin tubes increases the heat surface area and reduces the thickness of shell wall required.

why back washing is performed in DM water plant?

2 Answers  

What are some common problems associated with dilute phase pneumatic conveying?

0 Answers  

what is vacuum....?

6 Answers   UPL,

What type of pump may be appropriate for a liquid near saturation, a low flow rate, and very limited npsha (net positive suction head available)?

0 Answers  

respected sir,i have been selected in the written examination(CHEMICAL) of IOCL Panipat held on 30 m1rch, So please tell me which type of questions asked in this interview frequently.Can u mail me some questions?

22 Answers   HCL, HCPL, HPCL, IOCL,

Explain some good strategies for curing tube vibration in shell and tube exchangers?

0 Answers  

What is a surfactant?

0 Answers  

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.14 : For a formula of y = [ 1 - 1 / (1 + r) ^ n ] / r, let y = present value, r = interest rate / year, n = number of years to future value of 1 : (a) Find a simple mathematical relationship of y as a function of r when n = 1 million years. (b) What is the present value of $10000, if the annual discount rate is 10 %, forever?

1 Answers  

ENGINEERING PHYSICS - EXAMPLE 30.1 : Two viruses a and b with masses of Ma and Mb are moving at velocities of Va and Vb respectively, facing towards each other and collide. After collision both masses of Ma and Mb disappear. (a) Find the total momentum available for both a and b. Hint : momentum = mass x velocity = M x V. (b) Guess the total energy E generated from the disappearance of a and b. Let c to be the velocity of light. Hint : E is equal to M c square.

1 Answers  

can we apply Bernoulli theorem for liquid?

1 Answers  

What happens when fuel is burned , what are compounds released??

3 Answers   Reddy Labs,

Who built the first production scale pla (polylactic acid) facility?

0 Answers