Heat absorbed by 1.3MPA high-temperature water turning into steam, thank you
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The company’s waste boiler contains water at a pressure of 1.3 MPa and a temperature of around 150 degrees Celsius. After heating, it turns into saturated steam at a pressure of 0.5 MPa (with a temperature of about 135 degrees Celsius). How can the amount of heat absorbed during this heating process be calculated? Waiting online, thank you! !
First, the saturation temperature of water vapor at 1.3 MPa is 191 degrees Celsius. The process is as follows: 1.3 MPa, supercooled liquid at 150 degrees ~~ 1.3 MPa, saturated liquid at 191 degrees ~~ 1.3 MPa, saturated vapor at 191 degrees ~~ 0.5 MPa, saturated vapor at 135 degrees
Once you know the process, just calculate it step by step; however, for the final calculation, do it in two stages: once at constant pressure and once at constant temperature