In these notes the solution of a numerical problem on Boiler performance is explained.

1. Solution of numerical problem on
Boiler performance - Part 2
Presentation by:
Avdhesh Tyagi
Asst. Prof.
Department of Mechanical Engineering
G. L. Bajaj Institute of Technology & Management, Greater Noida
Disclaimer: The materials provided in this presentation and any comments or information
provided by the presenter are for educational purposes only. Nothing conveyed or provided
should be considered legal, accounting or tax advice.

2. Name of Subject: Applied Thermodynamics
Subject Code: KME401
Department of Mechanical Engineering
G. L. Bajaj Institute of Technology and Management,
Greater Noida, Uttar Pradesh
College code: 192
Affiliated to Dr. A.P.J. Abdul Kalam Technical University (Formerly UPTU Lucknow).
Unit 3
Topic covered: Numerical problem on Boiler
performance - Part 2

3. Problem statement
During the boiler trial for 24 hours following observations
were made:
• Steam generation: 16 bar, dry saturated;
• Coal consumed: 10,000 kg;
• Rate of steam generation: 2500 kg/hr;
• Feed water temperature: 30℃;
• Total heating surface area: 3000 m2;
• Total grate area: 4 m2;
• Calorific value of coal: 28,000 kJ/kg;
Determine:
(i) Mass of coal burnt per m2 of grate per hour;
(ii) Equivalent evaporation from and at 100℃ per kg of coal;
(iii) Equivalent evaporation from and at 100℃ per m2
of total heating surface per hour;
(iv) Boiler efficiency.

4. Solution

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