The flue gas temperature at the outlet of the natural gas boiler is 220 degrees; the water is heated to 90 degrees. One ton of water at 90 degrees is used per hour. How should the heat exchange be calculated...
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The flue gas temperature at the outlet of the natural gas boiler is 220 degrees; tap water is added to bring the temperature to 90 degrees. One ton of water at 90 degrees is used per hour. How should the heat exchange area be calculated?
The flue gas temperature at the outlet of the natural gas boiler is 220 degrees; tap water is added to bring the temperature to 90 degrees. One ton of water at 90 degrees is used per hour. How should the heat exchange area be calculated? Natural gas flue gas: Temperature: 220℃ ——> 100℃ Flow rate: 4160.9 kg/h (Boilers with a capacity of over 3 tons can generate such a flow rate of flue gas) Pressure: ≥600 Pa Cool water: 20℃ ——> 90℃ Flow rate: 1800 kg/h (this is the amount of hot water produced) Calculation software: Heat Exchanger Master
This post was last edited by wiseboy on 2018-1-25 at 15:12. Note: 1. You did not provide the flue gas pressure; I have assumed a pressure of at least 600 Pa. If the pressure is less than 600 Pa, a different calculation will be required； 2. Since you didn’t specify the use of finned tubes, I calculated using plain tubes. 3. There are 6 extra pipes in the piping diagram; you can replace them with tie rods, or simply remove those 6 pipes from the diagram. ......
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