entropy

enthalpy

pressure

temperature

infinitely long

around 200 meters

equal to the height of the hot gas column producing draught

outside temperature is very low

carbon, hydrogen, nitrogen, sulphur, moisture

fixed carbon, ash, volatile matter, moisture

higher calorific value

lower calorific value

induced draft fan

smoke meter

chimney

precipitater

Higher calorific value at constant volume

Lower calorific value at constant volume ,

Higher calorific value at constant pressure

Lower calorific value at constant pressure