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Q2): It is required to heat 10000 bbl/ day of crude oil (as given in case study of Lecture3) in a fired still heater from 220 °F to 622 °F and vaporize (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) of the crude oil using refining gas, (NHV=50000 Btu /lb). In the radiant section contains 1500 ft' of projected area, and the tubes (5 in. outside diameter) are spaced at a center- to-center distance of 10 in. there is only one row of radiant tubes, and they are 40 ft long. The ratio of air to fuel is 17. Given: Average Specific heat of the crude oil = 2.3 Btu/ lb "F, average latent heat of vaporization is 120, 113, 100, 95, 90 Btu/lb for (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) respectively. and the furnace efficiency is 75% calculate: a) The mass flow rate of the fuel required? b) How many Btu are absorbed per hour in radiant section? c) How many Btu are absorbed per hour through each square foot of projected area? Given:

Q2): It is required to heat 10000 bbl/ day of crude oil (as given in case study of Lecture3) in a fired still heater from 220 °F to 622 °F and vaporize (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) of the crude oil using refining gas, (NHV=50000 Btu /lb). In the radiant section contains 1500 ft' of projected area, and the tubes (5 in. outside diameter) are spaced at a center- to-center distance of 10 in. there is only one row of radiant tubes, and they are 40 ft long. The ratio of air to fuel is 17. Given: Average Specific heat of the crude oil = 2.3 Btu/ lb "F, average latent heat of vaporization is 120, 113, 100, 95, 90 Btu/lb for (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) respectively. and the furnace efficiency is 75% calculate: a) The mass flow rate of the fuel required? b) How many Btu are absorbed per hour in radiant section? c) How many Btu are absorbed per hour through each square foot of projected area? Given:

Introduction to Chemical Engineering Thermodynamics
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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Q2): Itis required to heat 10000 bbl/ day of crude oil (as given in case study of Lecture3) in a fired still heater from 220 °F to 622 °F and vaporize (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) of the crude oil using refining gas, (NHV=50000 Btu /Ib). In the radiant section contains 1500 ft? of projected area, and the tubes (5 in. outside diameter) are spaced at a center- to-center distance of 10 in. there is only one row of radiant tubes, and they are 40 ft long. The ratio of air to fuel is 17. Given: Average Specific heat of the crude oil = 2.3 Btu/ Ib °F, average latent heat of vaporization is 120, 113, 100, 95, 90 Btu/Ib for (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) respectively. and the furnace efficiency is 75% calculate: a) The mass flow rate of the fuel required? b) How many Btu are absorbed per hour in radiant section? ¢) How many Btu are absorbed per hour through each square foot of projected area? Given: 1 bbl =42 gal. P water =8.33 Lb/gal
Q2): It is required to heat 10000 bbl/ day of crude oil (as given in case study of Lecture3) in a fired still heater from 220 °F to 622 °F and vaporize (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) of the crude oil using refining gas, (NHV=50000 Btu /lb). In the radiant section contains 1500 ft' of projected area, and the tubes (5 in. outside diameter) are spaced at a center- to-center distance of 10 in. there is only one row of radiant tubes, and they are 40 ft long. The ratio of air to fuel is 17. Given: Average Specific heat of the crude oil = 2.3 Btu/ lb "F, average latent heat of vaporization is 120, 113, 100, 95, 90 Btu/lb for (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) respectively. and the furnace efficiency is 75% calculate: a) The mass flow rate of the fuel required? b) How many Btu are absorbed per hour in radiant section? c) How many Btu are absorbed per hour through each square foot of projected area? Given: 1 bbl =42 gal. P water =8.33 Lb/gal
Transcribed Image Text:Q2): It is required to heat 10000 bbl/ day of crude oil (as given in case study of Lecture3) in a fired still heater from 220 °F to 622 °F and vaporize (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) of the crude oil using refining gas, (NHV=50000 Btu /lb). In the radiant section contains 1500 ft' of projected area, and the tubes (5 in. outside diameter) are spaced at a center- to-center distance of 10 in. there is only one row of radiant tubes, and they are 40 ft long. The ratio of air to fuel is 17. Given: Average Specific heat of the crude oil = 2.3 Btu/ lb "F, average latent heat of vaporization is 120, 113, 100, 95, 90 Btu/lb for (gasoline, naphtha, kerosene, light gasoil, heavy gasoil) respectively. and the furnace efficiency is 75% calculate: a) The mass flow rate of the fuel required? b) How many Btu are absorbed per hour in radiant section? c) How many Btu are absorbed per hour through each square foot of projected area? Given: 1 bbl =42 gal. P water =8.33 Lb/gal
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