Answer / totti

main difference b/w horizontal and vertical heat exchanger
is "residence time" fluid which flow in horizontal heat
exchanger gets more residence time as compared to vertical
heat exchanger.

Answer / sandeep singh

construction wise both r same but functionally they differ.vertical is mainly used when less floor area availible.and vertical required higher pumping cost also good for handling heat sensible material as resident time is much lower in comparision to the horizontal one.

Answer / daya gamane

In vertical heat exchanger film-wise condensation occurs while in horizontal heat exchanger drop wise condensation occur

Answer / ossus

1.Thermosyphon type HE is vertical HE and Kettle type HE is horizontal HE.

2.in horizontal position, pressure drop is negligible and in vertical position,pressure drop is significant and high.

3. If viscosity of bottom product of distillation column is very high then vertical position preferred and if low then horizontal position preferred.

4 in vertical position high circulation of fluid of possible and low circulation in horizontal position.

Answer / vishwarup sane

1. As the tubes are smooth, the condensation occurs on the surface of tubes, which makes the film over the surface of tubes leads to increase in thickness, as the thickness increases it's acts as a insulation and lower the effective heat transfer coefficient.
2. In vertical heat exchangers as we go downward the thickness of the film increases resulting lowers the heat transfer coefficient.
3. In horizontal heat exchanger the formation of film on the surface of tubes is there but the not as that much of vertical heat exchanger, so the heat transfer coefficient is higher in horizontal type heat exchanger than vertical type heat exchanger.

Answer / yousef

the vertical is better than horizontal when using steam as service side

Answer / magesh

Both are the same. Only the way it is erected. Normally HXs are placed horizontally. But in case of space constraints they can be erected vertically. In such a case other changes like the head of pump pumping fluid to the vertical HX may change.

Answer / muthu

same

Answer / nagarajan

both are same only difference is the flow of the fluids us
ed in H.E

Answer / shravan kumar

if an exchanger is placed horizontally then it is called
horizontal heat echanger. Simillarly of vertical heat
exchanger.

How can you determine the proper pipe thickness for a slurry line?

0 Answers  

Hi, I am Gurunathan. I am in need of ONGC, IOCL, DRDO technical test ( chemical engineering)and general aptitude questions. If anyone has kindly post it to me soon.

0 Answers   Nelco,

What is the angle of repose and what are its applications in the chemical industry?

0 Answers  

What would happen if the suction pressure is low in a boiler feed water pump?

7 Answers   CPCL, Kelvin Power Station,

Why should chemical equation be balanced?

0 Answers  

For a Vernier scale of representative fraction (RF) = 1 / 25, calculate the length of the scale for the reading up to 4 metres.

1 Answers  

what is cv value in valves

3 Answers   IFFCO,

How to estimate the efficiency of a pump?

2 Answers   OGDCL,

Question 105 - In a rigid rotor model in quantum chemistry, the moment of inertia I is given by an Equation E as I = Ma x La x La + Mc x Lc x Lc = m x L x L, where m = (Ma x Mc) / (Ma + Mc) and L = La + Lc, m is the reduced mass, Ma is the mass of a, Mc is the mass of c, La is the radius of a from point O, Lc is the radius of c from point O. Prove by simplest method that Equation E is wrong.

1 Answers  

what is the apt definitions for apparent power ,active power and reactive power?and explanation about different types of lamps?

0 Answers  

QUANTUM BIOLOGY - EXAMPLE 33.2 : (a) In a biomolecule, ATP hydrolysis will produce 3 kcal / mol to 60 kcal / mol of energy, according to energy scale. Find the range of such energy generation if 2 moles of molecules involved. (b) A formula is given by ln P = ln a + b ln W where P = metabolic rate, W = body size, a = dependent of taxa, b = scaling exponent. If b is approximately 1 for plant, and b is approximately 0.75 for animal, find the relationship of P as a function of a and W in plant.

1 Answers  

We wanted to know how to impart various colors to copper wire by simply dipping them into various chemicals, formulations, etc. This copper wire is to be used by us for our hobby of making various art objects from copper wire.

0 Answers