358 A Text Book of Thermal Engineering Feed water temperaturç 12° C; Pressure of steam = 11 bar; Dryness fraction of steam - 0.95: Mass of coal burnt 300 kg/h , Calorific value of coal 32 000 kJ/kg of coal : Mass of water suppiied to boiler in 7 hrs 14 min 14 625 kg. %3D The mass ofw ster in the boiler at the end of the test was less than that at the commence ment by 900 kg. Calculate:L. Actual evaporation per kg of coal: 2. Equivalent evaporation from and at 100 C per kg [Ans. 7.15 kg; 8.33 kg: 58.75 %) of coal ; and 3. Thermal efficiency of the boiler.
358 A Text Book of Thermal Engineering Feed water temperaturç 12° C; Pressure of steam = 11 bar; Dryness fraction of steam - 0.95: Mass of coal burnt 300 kg/h , Calorific value of coal 32 000 kJ/kg of coal : Mass of water suppiied to boiler in 7 hrs 14 min 14 625 kg. %3D The mass ofw ster in the boiler at the end of the test was less than that at the commence ment by 900 kg. Calculate:L. Actual evaporation per kg of coal: 2. Equivalent evaporation from and at 100 C per kg [Ans. 7.15 kg; 8.33 kg: 58.75 %) of coal ; and 3. Thermal efficiency of the boiler.
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter50: Commercial, Packaged Rooftop, Variable Refrigerant Flow, And Variable Air Volume Systems
Section: Chapter Questions
Problem 18RQ: Explain how carbon dioxide levels can be used to estimate the occupancy level in a particular area...
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Refrigeration and Air Conditioning Technology (Mi…
Mechanical Engineering
ISBN:
9781305578296
Author:
John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:
Cengage Learning
Refrigeration and Air Conditioning Technology (Mi…
Mechanical Engineering
ISBN:
9781305578296
Author:
John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:
Cengage Learning