Consider a tube-in-tube heat exchanger to be used for heating a cold water from 10 C to 85 C at the rate of 50 kg/s by a hot fluid that can be either water or air with parallel or counterflow configurations. Use Table 11-1 for fluids involved to get overall heat transfer coefficient, design for your selected mass flow rate of hot fluids, Provide inlet and outlet temperatures of the hot fluids, and use fluids properties given in Tables A1-19 (given in the back of your book). Show your calculations to proof your design of the heat exchanger (length and diameter of the designed heat exchanger) is fully supported by your calculations. Conclude which one of the two configuration is more compact by designed length and diameter. Following rubric will be used to grade your report. 1. Type your report (equations can be written by hand) 2. Your report needs to have a cover page, description of the project, design details and calculations, conclusions, and references.