Q4: The LHV of n-heptane (C7H16) is 44.924 MJ/kg. If the dry basis exhaust gas analysis for an engine running on it gave the following results: 9.1% CO2 • 0.6% CO • 7.2% 0₂ 1- Calculate the equivalence ratio. 2- Calculate the HHV (MJ/kg) of n-heptane. (Note: Assume that the enthalpy of condensation of water vapour H₁= 44 MJ/kmol H₂O)

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
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Q4: The LHV of n-heptane (C-H16) is 44.924 MJ/kg. If the dry basis exhaust gas analysis for an engine
running on it gave the following results:
• 9.1% CO2
• 0.6% co
7.2% O2
1- Calculate the equivalence ratio.
2- Calculate the HHV (MJ/kg) of n-heptane.
(Note: Assume that the enthalpy of condensation of water vapour H,= 44 MJ/kmol H;O)
Transcribed Image Text:Q4: The LHV of n-heptane (C-H16) is 44.924 MJ/kg. If the dry basis exhaust gas analysis for an engine running on it gave the following results: • 9.1% CO2 • 0.6% co 7.2% O2 1- Calculate the equivalence ratio. 2- Calculate the HHV (MJ/kg) of n-heptane. (Note: Assume that the enthalpy of condensation of water vapour H,= 44 MJ/kmol H;O)
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