Please find below the
Semi-Finalist Evaluation
Judges'' comments
The proposal involves re-capturing waste heat from the stack of power plants or other industrial facilities by using an ammonia based Rankine cycle to power a generator. The concept of capturing waste heat in this manner is well known and has been used extensively in industrial and even residential applications. For example, most commercially available residential high efficiency heating systems use a variation of this approach to capture heat from the furnace exhaust. Commercially available applications include utilizing the waste heat directly (e.g., to heat water) or to generate electricity (e.g., a combined cycle power plant).The gains in efficiency are currently funded, in part, by government mandates to achieve efficiency targets and, in some states, utility demand side management subsidies.
A future proposal would be enhanced by:a) Identifying specific applications for the waste heat extraction that have not yet been tapped.b) An assessment of the reason that they have not been tapped and an explanation for how these problems can be overcome.
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