Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 7 (Q.No. 3)
3.
The most commonly used method for the design of duct size is the
velocity reduction method
equal friction method
static regain method
dual or double method
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
20 comments Page 1 of 2.

Syed Khaja mohinuddin said:   9 years ago
Its a rarely used method and only for circular duct. In gulf equal friction method is used.

Ritzie Argota said:   8 years ago
Static regain has complicated method of calculating the size of duct. The equal friction should be considered as commonly used method in duct sizing.

Wael said:   8 years ago
The equal friction method is the most commonly used.

Charit said:   8 years ago
Please, clarify me. I think it's option B. Equal friction method.

Bholia said:   7 years ago
Why not A?

Anil said:   7 years ago
Option A is correct.

DURGESH KUMAR DUBEY said:   7 years ago
Equal friction method is correct answer.

WinA said:   7 years ago
Here the total frictional drop and fitting pressure drop is calculated for the ducts, and the line with the biggest pressure drop is taken. This method is the most accurate but take lots of time for calculation.

Shivam roy said:   6 years ago
Equal friction method is the correct answer.

Ahmed said:   6 years ago
Equal friction method is more efficient.


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