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Unit conversion of Chemical Engineering

Unit conversion of Chemical Engineering

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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In one year, in the United States there were approximately 4,200,000,000,000 km traveled by 230,000,000 vehicles. a) If the average fuel economy is 20 miles per gallon, determine the number of gallons needed for the United States for one year. b) If the average household has 2 vehicles, and if the gasoline cost is $4 per gallon what is the total cost per household per year? Assume each vehicle travels the national average. c) One gallon of gasoline has the same amount of energy as a kg of hydrogen. However, fuel cell vehicles have a higher efficiency and can travel 96 km per kilogram of hydrogen. With this information, determine how many billion kg of hydrogen would be needed if all vehicles are replaced by fuel cell vehicles. Also, assume that 40% of the hydrogen is centrally generated at a rate of 1 million kg hydrogen per day and that the rest of the hydrogen is generated at local facilities at a rate of 5000 kg hydrogen per day. How many of each type of production facility are required? 2.
Transcribed Image Text:In one year, in the United States there were approximately 4,200,000,000,000 km traveled by 230,000,000 vehicles. a) If the average fuel economy is 20 miles per gallon, determine the number of gallons needed for the United States for one year. b) If the average household has 2 vehicles, and if the gasoline cost is $4 per gallon what is the total cost per household per year? Assume each vehicle travels the national average. c) One gallon of gasoline has the same amount of energy as a kg of hydrogen. However, fuel cell vehicles have a higher efficiency and can travel 96 km per kilogram of hydrogen. With this information, determine how many billion kg of hydrogen would be needed if all vehicles are replaced by fuel cell vehicles. Also, assume that 40% of the hydrogen is centrally generated at a rate of 1 million kg hydrogen per day and that the rest of the hydrogen is generated at local facilities at a rate of 5000 kg hydrogen per day. How many of each type of production facility are required? 2.
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