I have a project for class that includes the completion of the Harvard Business Simulation "Scenario A Delphi Printer". I can run this simulation as many times as I wish, the highest score I have been able to achieve was an 836. I would like to receive about a 900. I will need a guide displaying how that score can be achieved on a week by week basis in the simulation. Thanks

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]