The following data is obtained during a test on a steam boiler: Steam generation rate Steam pressure Quality of steam Feed water temperature Coal consumption CV of coal 2. 6.3 tonne/hr 10 bar 0.95 dry 35°C 0.7 tonne/hr 32 MJ/kg Determine: 2.1. Equivalent evaporation and boiler efficiency If the feed water temperature is raised to 100 °C and the boiler efficiency is increased by 5% 2.2. while other data remain the same, find saving in coal consumption per hour. JEE = 10.08; nb = 71.1%; 16.5%|
The following data is obtained during a test on a steam boiler: Steam generation rate Steam pressure Quality of steam Feed water temperature Coal consumption CV of coal 2. 6.3 tonne/hr 10 bar 0.95 dry 35°C 0.7 tonne/hr 32 MJ/kg Determine: 2.1. Equivalent evaporation and boiler efficiency If the feed water temperature is raised to 100 °C and the boiler efficiency is increased by 5% 2.2. while other data remain the same, find saving in coal consumption per hour. JEE = 10.08; nb = 71.1%; 16.5%|
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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2.
The following data is obtained during a test on a steam boiler:
Steam generation rate
Steam pressure
Quality of steam
Feed water temperature
Coal consumption
6.3 tonne/hr
|10 bar
0.95 dry
35°C
0.7 tonne/hr
32 МJ/kg
CV of coal
Determine:
Equivalent evaporation and boiler efficiency
If the feed water temperature is raised to 100 °C and the boiler efficiency is increased by 5%
2.1.
2.2.
while other data remain the same, find saving in coal consumption per hour.
|EE = 10.08; nb = 71.1%; 16.5%|
A power plant producing 120 MW of electricity has steam condition at boiler outlet as 100
bar, 500 °C and the condenser pressure is 0.1 bar. The boiler efficiency is 90%. The boiler consumes
3.
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