Solved: A heat engines high temperature could be ambient
Chapter 15, Problem 15.22(choose chapter or problem)
A heat engines high temperature could be ambient temperature, because liquid nitrogen at 77 K could be and is cheap. What would be the efficiency of a Carnot engine that made use of heat transferred from air at room temperature (293 K) to the liquid nitrogen fuel(Fig.1525)?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer