Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 4 (Q.No. 47)
47.
One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to
Discussion:
14 comments Page 2 of 2.
RAVI CHAVAN said:
1 decade ago
For same heat input and output.
Shortcut formula T2 = geometric mean mean of T1 and T3.
Shortcut formula T2 = geometric mean mean of T1 and T3.
Gaurav said:
1 decade ago
Efficiency is same for both.
T2/1600 = 400/T2.
T2 = 800.
T2/1600 = 400/T2.
T2 = 800.
(2)
ASHOK KUMAR said:
1 decade ago
T1-T2/Ti = T2-T3/T2.
Ti = 1600k.
T2 = ?k.
T3 = 400k.
1600-T2/1600 = T2-400/T2.
1600T2-T2*T2 = 1600T2-640000.
T2 suqare = 640000.
T2 = 800k.
Ti = 1600k.
T2 = ?k.
T3 = 400k.
1600-T2/1600 = T2-400/T2.
1600T2-T2*T2 = 1600T2-640000.
T2 suqare = 640000.
T2 = 800k.
(1)
Hizal said:
1 decade ago
How it is solution?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers