A combustion chamber is sometimes designed to keep pressure constant along its length. This is done by varying cross-sectional area as heat is added. For a case where the heat added per mass of the combustion gases from inlet (station 1) to exit (station 2) is q1->2 = 1x106 J/kg, find the required cross-sectional area at the exit for such a case (where pressure is kept constant)? Assume inviscid (frictionless) flow. Let: Inflow static pressure = 200,000 N/m² Inflow static temperature = 1000 K Inflow static density = 0.481 kg/m³ Inflow axial velocity = 100 m/s Inflow cross-sectional area = 0.5 m² Combustion gases (γ = 1.2, MW = 20 g/mol)

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To find the required crosssectional area at the exit of the combustion chamber we can use the continuity equation and the isentropic flow relations for an inviscid frictionless flow Given Inflow stati... View the full answer