Liquid hydrazine (N2H4) is injected in a jet combustion chamber at 400K and burned with 100% excess air entering at 700K. The combustion chamber is jacketed with water. The combustion gases leave the jet exhaust at 900K. If hydrazine is being fed to the combustion chamber at a rate of 50 kgmol/h and burned completely, what is the rate at which heat is being removed by the cooling water? Assume that the heat capacity does not vary with temperature. Combustion equation: N2H4(l) + O2(g) --> N2(g) + H2O(g)
Liquid hydrazine (N2H4) is injected in a jet combustion chamber at 400K and burned with 100% excess air entering at 700K. The combustion chamber is jacketed with water. The combustion gases leave the jet exhaust at 900K. If hydrazine is being fed to the combustion chamber at a rate of 50 kgmol/h and burned completely, what is the rate at which heat is being removed by the cooling water? Assume that the heat capacity does not vary with temperature. Combustion equation: N2H4(l) + O2(g) --> N2(g) + H2O(g)
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Question
Liquid hydrazine (N2H4) is injected in a jet combustion chamber at
400K and burned with 100% excess air entering at 700K. The combustion chamber is jacketed
with water. The combustion gases leave the jet exhaust at 900K. If hydrazine is being fed to the
combustion chamber at a rate of 50 kgmol/h and burned completely, what is the rate at which
heat is being removed by the cooling water? Assume that the heat capacity does not vary with
temperature.
Combustion equation: N2H4(l) + O2(g) --> N2(g) + H2O(g)
Transcribed Image Text:Physical properties: Substance
N₂H4 (liq)
N₂ (g)
O₂ (g)
H₂O (g)
heat capacity J/mol.K
139
30.75
32.75
37.5
AĤ (kJ/mol)
44.77
0.0
0.0
-241.83
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