HW 1 S - CHE4473 Kinetics Homework N1 Spring 2016 Mass and...

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CHE4473 Kinetics Spring 2016 Homework N°1 : Mass and Mole Balances, Units, Numbers, Estimates (Ch. 1) 1. Working out rough estimates is a good exercise for Engineers A. Find out: how much gasoline is consumed per year in the US; how many refineries operate in the US; what is the average MPG for a US vehicle? From these numbers and your own approximations estimate the following: a. What is the average gasoline production of a US refinery in bpd? (units 1 barrel = 31.5 gallons) b. How many miles do Americans as a whole drive per year? And, How many miles does the average American drive per year? Insurance companies estimate 13,000 miles/driver/year. Is your estimate higher or lower? Explain the differences (check how many cars are there in the US). c. How many miles do you drive per year? Is that more or less than the average? d. What can you do to reduce the number of miles you drive? What benefits could you mention of people driving less? SOLUTION (a) Look it up Gasoline consumption in the US (2014) 137 billion gallons per year Or 11.9 million bpd There are 143 refineries in the US So, average gasoline capacity 11.9 x E06 / 143 = 83,000 bpd one refinery (b) Look it up.
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