ExamVeda
Login
Home

In case of a shell and tube heat exchanger the minimum...

This question belongs to Chemical Engineering Heat Transfer
Heat Transfer
?

In case of a shell and tube heat exchanger, the minimum and maximum baffle spacing is respectively (where, D = inside diameter of the shell)

Answer & Solution
Correct Answer: Option A
Let's discuss the solution. Join the discussion
Examveda
Question posted by Examveda
Community

Join the Discussion

1 Comment
Atanu Chatterjee
Atanu Chatterjee 1 year ago
The correct answer is: C. D/4 and 2D

✅ Explanation:
In a shell and tube heat exchanger, baffle spacing significantly affects both heat transfer performance and pressure drop on the shell side.

Let D be the inside diameter of the shell.

🔹 Minimum baffle spacing:
Typically recommended to be not less than D/5 to D/4

Too small spacing: Increases pressure drop excessively

Standard design practice often uses D/4 as the minimum

🔹 Maximum baffle spacing:
Generally limited to 2D

Too large spacing: Reduces shell-side turbulence and can allow tubes to vibrate, risking mechanical failure

📝 Correct interpretation of options (with proper formatting):
Option Minimum Baffle Spacing Maximum Baffle Spacing
A D/5 D
B D/2 2D
C ✅ D/4 2D
D D 2D

✅ Final Answer: C. D/4 and 2D
Keep Learning

Related Questions on Heat Transfer

200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 × 10-3 kg/m2.s. The initial moisture content of the solid is 0.2 kg moisture/kg dry solid. The interfacial area available for drying is 4 m2/1000 kg of dry solid. The moisture content at the end of the drying period is (in kg moisture/kg dry solid)
A. 0.5 B. 0.05 C. 0.1 D. 0.15
It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/(kgK). The rate at which the heat has to be supplied in (kJ/min) to the evaporator is
A. 3.06 × 105 B. 6.12 × 105 C. 7.24 × 105 D. 9.08 × 105
Fqra cold viscous feed, backward feed gives __________ than forward feed.
A. A higher capacity B. A lower capacity C. Lower economy D. None of these
In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to __________ the velocity head.
A. Twice B. Four times C. Square root of D. Square of
More Related Questions on Heat Transfer