Design a Ramjet System with a rectangular supersonic intake as shown below for the following operating...
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Design a Ramjet System with a rectangular supersonic intake as shown below for the following operating parameters: Flight Mach No. M-2.5, Alt-30K ft, Required Thrust 10 KN, Fuel is Octane QR = 50 MJ/Kg, Standard Heat of Formation h (octane) = -249 KJ/mol, h(H₂O) = -243 KJ/mol, h(CO₂) = -393.52 KJ/mol and burns in the combustor with the following reaction: CsH18 + x(O₂+3.76N₂) 8CO₂ + 9H₂O + y(O₂+3.76N₂) D₁ D₂ Determine the following: 1. Inlet Area, Nozzle throat area, Exit Area, distance D₁, distance D2, Wedge Angle 2. Total Pressure Recovery at the inlet 3. Combustor Inlet Area for Mach No M = 0.2 4. Combustor Temperature and qman for thermal choking 5. Air Mass Flow rate, Fuel Flow rate & TSFC 6. Exit Velocity Make Suitable assumptions where required and use appropriate fuel-air ratio (ie. Values for x & y in the reaction equation). Design a Ramjet System with a rectangular supersonic intake as shown below for the following operating parameters: Flight Mach No. M-2.5, Alt-30K ft, Required Thrust 10 KN, Fuel is Octane QR = 50 MJ/Kg, Standard Heat of Formation h (octane) = -249 KJ/mol, h(H₂O) = -243 KJ/mol, h(CO₂) = -393.52 KJ/mol and burns in the combustor with the following reaction: CsH18 + x(O₂+3.76N₂) 8CO₂ + 9H₂O + y(O₂+3.76N₂) D₁ D₂ Determine the following: 1. Inlet Area, Nozzle throat area, Exit Area, distance D₁, distance D2, Wedge Angle 2. Total Pressure Recovery at the inlet 3. Combustor Inlet Area for Mach No M = 0.2 4. Combustor Temperature and qman for thermal choking 5. Air Mass Flow rate, Fuel Flow rate & TSFC 6. Exit Velocity Make Suitable assumptions where required and use appropriate fuel-air ratio (ie. Values for x & y in the reaction equation).
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Given Flight Mach number M 25 Altitude h 30000 ft 9144 m Required thrust F 10 kN Fuel is octane C8H18 with heating value QR 50 MJkg Standard heats of ... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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