Steam is used to heat the sewage tank; calculation of steam consumption
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The company has a sewage tank that is intended to be heated with steam. Steam pressure is 0.6 MPa, and the temperature is over 160 degrees. A carbon steel coil is placed in water to be heated, and after it passes through, the water is directly discharged into sewage. Coil diameter DN32. The tank is built on the ground; it holds about 10 cubic meters of wastewater and has an open design without any insulation. The water temperature is raised from 0° to 35° over a period of about 4 hours. What is an appropriate amount of steam to be supplied per hour? If the time is 3 hours, what is an appropriate amount of steam to supply per hour? If the temperature ranges from 10° to 35°, what amount of steam is appropriate? .
A total of around 2000 m3 of steam is required; you can calculate the rest by yourself.
The enthalpy value of 1 ton of steam is 0.7 MW; 2000 x 0.7 = 1400 MW? Can the heat load required to raise 10 tons of wastewater from 0°C to 35°C be 1400 MW?
Let me correct myself: 2000 m3 of steam is equivalent to 613 tons of steam, and 613 x 0.7 = 430 MW
Still not correct; 2000 cubic meters of steam is equivalent to 6520 tons of steam. 6520 x 0.7 MW = 4564 MW
I checked some information, but due to my limited knowledge, I’m still not sure; 2000 cubic meters of steam is equivalent to 6.52 tons of steam. 6.52 x 0.7 MW = 4.564 MW