Exergy Supply Trends For The Us And Japan

In the remainder of this book we compare the US and Japan in considerable detail. The choice of Japan for this purpose is partly due to the availability of excellent historical data for the full hundred-year period. However, Japan also offers a fascinating contrast with the US. While the two countries are at comparable levels of development today, the history of development has been very different. Moreover, the two countries differ radically in terms of raw material base. The patterns of exergy supply and use differ substantially between the two countries, so if our theory of growth works well for both countries, it will increase our confidence in the new theory.

Inputs of exergy by source for the two countries are shown side by side in Figure 3.7a and Figure 3.7b. Note that exergy inputs from minerals and biomass are included explicitly. Breakdowns of the supply data in

©■ —© Coal &—0 Oil t — # Natural gas ft 0 Renewables

^fl Nuclear

Food and feed biomass Total exergy consumption

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010

Figure 3.7a Inputs of exergy by source (USA, 1900-2004)

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010

Figure 3.7a Inputs of exergy by source (USA, 1900-2004)

Japan Growth Since 1940Gdp Growth 1990 2000
Figure 3.8a Exergy input sources as percent of total exergy input (USA, 1900-2004)

Percent of total exergy input

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010

Year

Figure 3.8b Exergy input sources as percent of total exergy input (Japan, 1900-2004)

percentage terms are shown in Figure 3.8a and Figure 3.8b. Allocations of exergy inputs among the major categories of use are displayed and discussed in Chapter 4.

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