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Temperature of feed water entering a boiler is 50 degree and the pressure of the steam in the boiler is 13 bar. Given hf at 50 degree = 209.35 kJ/kg, Properties at 13 bar hf =841.7 kJ/kg, hg = 2785.4 kJ/kg How much heat will be required to produce one kilogram of steam if steam produced is dry saturated?
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Temperature of feed water entering a boiler is 50 degree and the press...
Calculation:

Given data:
Temperature of feed water (T1) = 50 °C
Pressure of steam in the boiler (P2) = 13 bar

Specific enthalpy at T1 (hf1) = 209.35 kJ/kg
Specific enthalpy at P2 (hf2) = 841.7 kJ/kg
Specific enthalpy at P2 (hg2) = 2785.4 kJ/kg

Step 1: Calculate the heat required to raise the temperature of feed water to its saturation temperature.

The specific heat of water (cp) = 4.186 kJ/kg·°C (Assuming constant)

The saturation temperature at P2 can be obtained from the steam tables or the temperature-entropy (T-s) diagram corresponding to P2.

Let's assume the saturation temperature at P2 (T2) = x °C

The heat required to raise the temperature of feed water to its saturation temperature is given by the equation:

Q1 = m × cp × (T2 - T1)

Step 2: Calculate the heat required to convert water at saturation temperature to dry saturated steam.

The heat required to convert water at saturation temperature to dry saturated steam is given by the equation:

Q2 = m × (hg2 - hf2)

Step 3: Total heat required to produce one kilogram of steam.

The total heat required to produce one kilogram of steam is obtained by adding the heat required in step 1 and step 2:

Q = Q1 + Q2

Final Answer:

The heat required to produce one kilogram of dry saturated steam is Q kJ.
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Temperature of feed water entering a boiler is 50 degree and the pressure of the steam in the boiler is 13 bar. Given hf at 50 degree = 209.35 kJ/kg, Properties at 13 bar hf =841.7 kJ/kg, hg = 2785.4 kJ/kg How much heat will be required to produce one kilogram of steam if steam produced is dry saturated?
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Temperature of feed water entering a boiler is 50 degree and the pressure of the steam in the boiler is 13 bar. Given hf at 50 degree = 209.35 kJ/kg, Properties at 13 bar hf =841.7 kJ/kg, hg = 2785.4 kJ/kg How much heat will be required to produce one kilogram of steam if steam produced is dry saturated? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Temperature of feed water entering a boiler is 50 degree and the pressure of the steam in the boiler is 13 bar. Given hf at 50 degree = 209.35 kJ/kg, Properties at 13 bar hf =841.7 kJ/kg, hg = 2785.4 kJ/kg How much heat will be required to produce one kilogram of steam if steam produced is dry saturated? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Temperature of feed water entering a boiler is 50 degree and the pressure of the steam in the boiler is 13 bar. Given hf at 50 degree = 209.35 kJ/kg, Properties at 13 bar hf =841.7 kJ/kg, hg = 2785.4 kJ/kg How much heat will be required to produce one kilogram of steam if steam produced is dry saturated?.
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