Saturated steam is produced in a steam boiler at a pressure of $15$ bar and a flow rate of $10$ tons$/$h$.$ Water enters the steam boiler as compressed water at $105\backslash$deg C$.$ a$-)$ What is the heat that must be given to the water in the steam boiler to perform this process? b$-)$ The boiler thermal efficiency $=0\mathrm{.}62$ and the lower calorific value of the coal used in the boiler is $20934$ kJ$/$kg Calculate the hourly coal consumption.

Answer rating: 100% (QA)

a 1 Energy required to heat the water from 105C to saturation temperature Q1 1000 418 Tsat 378 kJ Q1 ... View the full answer