1.1 Assume that from 1985 on the only significant sources of fuel are:
1. coal (direct combustion),
3. synthetic liquid fuel (from coal), and
Sources a, b, and c are assumed to follow the market penetration rule: f ln 1—f = at + b where f is the fraction of the market supplied by the fuel in question and t is the year (expressed as 1988, for instance, not as simply 88). The coefficients are:
a b for coal: —0.0475, 92.14; for oil: —0.0436, 86.22.
The above coefficients are derived from historical data up to
Was this article helpful?
The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.