Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion
Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 7 (Q.No. 23)
23.
A cube at high temperature is immersed in a constant temperature bath. It loses heat from its top, bottom and side surfaces with heat transfer coefficients of h1, h2 and h3 respectively. The average heat transfer coefficient for the cube is
h1 + h2 + h3
(h1h2h3)1/3
none of these
Discussion:
9 comments Page 1 of 1.
Sachin said:
9 years ago
It should be h1 + h2 + 4 * h3.
Dhanesh said:
8 years ago
It should be (h1+h2+4h3)/6.
Kuldeep Singh tanwar said:
7 years ago
Yes, you are right @Gaurav.
Rocky said:
9 years ago
1/(1/h1 + 1/h2 + 1/h3).
Sachin said:
8 years ago
It is (h1+h2+4h3)/6.
Om Nagar said:
8 years ago
It is (h1+h2+4h3)/6.
Vinay BEL said:
5 years ago
It is (h1+h2+4h3)/6.
(2)
Gaurav said:
8 years ago
It is (h1+h2+h3)/3.
Anurup said:
8 years ago
Yes, right @Rocky.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers