the air enters the boiler at a rate of 130 kg/hr at 42.5oC, and the water enters the boiler at a flow rate of 1000 kg/hr at 10oC. The composition of the dry flue gas leaving the boiler at 700oC are found to be 0.9% O 2, 9.7% CO 2, 0.02% CO and the balance N 2 •Sketch a process flow diagram of the above process

Read MoreMar 17, 2015 · Step 5: Determine Fuel Energy. Fuel Energy = Boiler Energy / Combustion Efficiency [ Fuel Energy = 128,905 = 101,577 / 0.788 ] Assumptions. Deaerator provides feedwater near the boiling temperature for the deaerator's set operating pressure. (Saturated Liquid) Steam, Boiler, and Blowdown Pressure are the same.

Read More()= 0.864 kg/s − − = 0.5 kg/s 175.92 83.96 kJ/kg 334.91 175.92 kJ/kg m&2 5-106 Feedwater is heated in a chamber by mixing it with superheated steam. If the mixture is saturated liquid, the ratio of the mass flow rates of the feedwater and the superheated vapor is to be determined.

Read MoreOct 21, 2020 · A steam boiler has a total volume 3 m3. The boiler initially contains 2 m3. The boiler initially contains 2m3 of saturated steam and 1 m3 of saturated liquid at 3 MPa. Calculate the mass of vapor, mass of liquid, quality of the steam, the specific internal energy of the steam, and the specific enthalpy of steam.

Read MoreDetermine the payback of the instrumentation if the cost of fuel oil is $0.20/L. Solution. From Example 8.2, the existing boiler has an excess O 2 of 6% and an overall boiler thermal efficiency of about 78% (i.e., η s t d = 0.78). After the boiler tune-up, the excess O 2 is 3%.

Read MoreAn adiabatic steam turbine receives steam from two boilers. One flow has a mass flow rate of 5 kg/s at 3 MPa and 600 o C. The other flow has a mass flow rate of 5 kg/s at 0.5 MPa and 600 o C. The exit flow is at 10 kPa with a quality of .

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