If the report contains many equations with many terms, the terms (with units) should be
identified at the end of the report. A report with a few simple equations having only few terms
can be identified completely within the body of the report. It is up to the author to judge when
a separate nomenclature section is required
List all variables (symbols) found in your report, what the variable represents, and the
dimensions or units of the variable. Use the format in Energy and Fuels or AIChE
Journal. Give units that are used by you for all variables. If dimensionless, say so. List in
alphabetical order with Greek letters grouped together at the end also in alphabetical order.