I don’t know what’s wrong with the simulation results using aspen plus

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Use aspen plus to simulate the heat exchange between flue gas and water. The specific heat capacity of the flue gas entering the flue gas at 78.7°C is about 1.068. The flue gas flow rate is 117944. The water is 45°C (national standard return water heating temperature). I calculated by hand that the flue gas dropped to 60 The heat released can heat water of about 200000kg/h to 55 degrees Celsius. However, the simulation result is as shown in my screenshot, which is definitely unreasonable. The temperature of the flue gas has only dropped a little, and the temperature of the water has increased so much. And the water flow rate is still 300000kg/h when I input it. I understand that there is latent heat in the flue gas, but how can the temperature of small water with a specific heat capacity of flue gas be higher than that of water? How can I solve this problem? Also, the heat load is much larger than I calculated.