As chief engineer of a large heat exchanger company, you are to prepare the preliminary design of a nonmixing heat exchanger that has a second law availability efficiency of at least 15.0%.
The two flow streams are to be liquid water, with one flow stream having a mass flow rate of 10 kg/s, entering at 10.0°C and leaving at 30.0°C.
The remaining variables (including the ground state) are not specified and are left to the discretion of the designer.