1. An inventor claims to have a steady state, steady flow system with an isentropic flow stream (i.e., sin = sout) that requires heat addition. Show whether or not this system violates the second law of thermodynamics.
2. The inventor in given Example now claims to have a system that generates heat by pumping water through a pipe isothermally (i.e., Tin = Tout). Show whether or not this system violates the second law of thermodynamics.
Example :
You are now an attorney in a patent office. An inventor wants to patent a new domestic hot water heater. The inventor claims to have a secret process that heats liquid water from 15.0°C to 50.0°C using only 100. W of electrical energy. Evaluate the inventor's claim and decide whether or not to issue a patent.