Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 3, Problem 8P
To determine
Calculate the number of years the U.S. resources last at the current rate of use.
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- A petroleum refinery processes 100,000 barrels of crude oil per day and operates with an energy efficiency of 90%. The oil and the petroleum products have enrgy contents of 35 MJ/L. What are the energy and fuel volume flows to and from this refinery, in J/day? ( One barrel of oil is 159 liters).arrow_forwardWhat is the energy content of sub-bituminous coal?arrow_forwardEarly oilmen worked with primitive exploration techniques. The peak year for discoveries of giant oil fields in the U.S. was in 1930 and 1962 for the world. 80% of the oil produced in 1995 was found before 1973. We now find one barrel for every four we consume. In the last 20 years, only three fields have been found with more than one billion barrels each. None produce more than 200,000 barrels a day. From 1990 to 2000, a total of 42 billion barrels of new reserves were discovered. In the same period the world consumed 250 billion barrels According to a recent report by the US Energy Information Administration (EIA), over the next 20 years US energy demands for oil are predicted to increase by 33%. Based on the data above, which change would best help with the conservation of oil reserves while still providing the energy required by citizens? 1. Lawmakers could restrict poorer countries from using oil, this would increase the supply for more developed countries. 2. Scientists…arrow_forward
- In 2016 the u.s geological survey estimated that 33% of the copper in the us was supplied by recycled copper. If the demand for copper remain constant at the 2016 rate of 1.8 Tg per yr how many years will be added to the time until exhaustion of the us reserve?arrow_forwardIt has been suggested that carbon dioxide emissions should be taxed at $30 per metric ton (106 g C). Removal of CO2 from the atmosphere would be worth the same amount. Assume that the atmospheric mixing ratio of CO2 is 400 ppm. What is the value of the carbon in 1 cubic kilometer (km3) of air at Earth’s surface? Calculate the value of all the CO2 in Earth’s atmosphere? [Hints: The total atmospheric mass is 5.1480×1018 kg and it is composed of 80% N2 and 20% O2.arrow_forwardGiven the balanced chemical equation below, what volume of O2 is formed from the decomposition of 13.5 g of HgO if the gas has a pressure of 99 kPa and a temperature of 122°C?arrow_forward
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