An atmospheric pressure heating furnace burns propane fuel (C3H8) with an air-to-fuel ratio of 25 (on a mass basis). Determine the heat transfer per kilogram of fuel burned when the temperature of the products is such that liquid water just begins to form in kJ/kgfuel [heat_transfer].

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater