It’s less then one
Effectiveness of heat exchanger is defined as the ratio of actual heat transfer rate to the maximum possible heat transfer rate. Since the actual heat transfer is always less than maximum possible heat transfer effectiveness is always less than one
Answer:
False.
Explanation:
I believe it is false. I hope this helps.
Answer:
1/2 or 1:2
Explanation:
first convert speed of compressor to rpms
Compressor speed= w1 = 150 cycles/s= 150 * 60= 9000 rpms
Speed of turbine= w2 = 18000 rpms
gear ratio = N2/N1 = w1/w2
gear ratio = 9000/18000
gear ratio = 1/2
gear ratio = 1:2