Energy costs vary greatly with energy source: coal @ $35.00/ton, gasoline @ a pump price of $2.75/gal,
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Energy costs vary greatly with energy source: coal @ $35.00/ton, gasoline @ a pump price of $2.75/gal, and electricity @ $0.100/kW·h. Conventional practice is to put these on a common basis by expressing them in $⋅GJ−1. For this purpose, assume gross heating values of 29 MJ⋅kg−1 for coal and 37 GJ⋅m−3 for gasoline.
(a). Rank order the three energy sources with respect to energy cost in $⋅GJ−1.
(b). Explain the large disparity in the numerical results of part (a). Discuss the advantages and disadvantages of the three energy sources.
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Related Book For
Introduction To Chemical Engineering Thermodynamics
ISBN: 9781260597684
9th International Edition
Authors: J.M. Smith, Mark Swihart Hendrick C. Van Ness, Michael Abbott
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