overview of energy flow for industries in standard industrial classifications 20 39 final summary report to the us department office technology december 4 2000 arthur d little inc acorn park cambridge massachusetts 02140 2390 reference 71563 00 doe oit cl10543 i table contents page list tables iii figures iv primary authors and contact information vii commonly used acronyms abbreviations viii 1 0 executive scope approach 2 findings 3 data gaps background 11 objective 13 15 5 sic food 21 industry 1994 total use p a 6 26 pulp paper 27 28 7 chemicals 35 8 29 petroleum refining 41