You are designing an afterburner to treat 2 m³/s of air at 1.02 atm and 20 °C. The pollutant concentration in the air stream is 3 g/m³. The fuel to be added is methane at a volumetric treated air-to-fuel (AF) ratio of 80. Its heat of combustion is 50,100 kJ/kg (you can assume the same for the pollutant). The reaction chamber following the combustion zone is a cylinder. The design flow velocity is 5 m/s and the residence time for the gas stream is to be 1 s. Find (a) the average temperature of the gas leaving the combustion zone and entering the reaction zone in degrees K; (b) the diameter of the reaction chamber in m, and (c) the length of the reaction chamber in m. You can assume that the polluted air to be treated has the properties of air (so the specific heat is 1.1 kJ/kg-K; also use this for the specific heat of the methane, your added fuel).

You are designing an afterburner to treat 2 m³/s of air at 1.02 atm and 20 °C. The pollutant concentration in the air stream is 3 g/m³. The fuel to be added is methane at a volumetric treated air-to-fuel (AF) ratio of 80. Its heat of combustion is 50,100 kJ/kg (you can assume the same for the pollutant). The reaction chamber following the combustion zone is a cylinder. The design flow velocity is 5 m/s and the residence time for the gas stream is to be 1 s. Find (a) the average temperature of the gas leaving the combustion zone and entering the reaction zone in degrees K; (b) the diameter of the reaction chamber in m, and (c) the length of the reaction chamber in m. You can assume that the polluted air to be treated has the properties of air (so the specific heat is 1.1 kJ/kg-K; also use this for the specific heat of the methane, your added fuel).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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