An article in the Journal of Engineering for Gas
Turbines and Power (Seyedan et al., 1996) emphasized
the wide use of heat recovery systems in industries
across the world. This process takes waste heat
and produces steam which powers turbines, producing electricity. The article is technical, but it reveals that
heat recovery systems come in an array of sizes and
capacities, that can be custom made or retro®t for an
existing industry. Further research revealed the temperatures
needed for this process range from 2400 to
3000 EF (Ganapathy, 1996). Temperatures that high
would probably be reached by only one industry (to be
discussed later). The other types of manufacturing this
project proposes would produce temperatures less
than 1000 EF. It may be more practical to use this
heat for heat cascading (Lowe et al., 1995), that is,
using low temperature heat (150 E and higher) to heat
greenhouses in the off-peak growing season.