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Use stack gas temperature to run a Rankine Heat Engine to produce electrical power and reduce GHG's.


Description

Summary

Place a heat exchanger in the flue gas stream going to stack to boil freon or ammonia to run a Rankine Cycle closed loop cycle turbine/generator  to produce electrical power... Deep cool well water, lake water or ocean water at the sites can be used in another heat exchanger as the condensing medium..Stack exit temperatures can be as high as 230 degrees F which is plenty warm enough to boil off freon or ammonia to run a turbine generator..

http://www.lockheedmartin.com/us/100years/stories/otec.html

 


Category of the action

Mitigation - What U.S. Federal Agencies can do to mitigate climate change


What actions do you propose?

Per the summary above by doing so these actions can reduce GHG's about 7% per site and that electrical energy can be sold to the community or used as auxiliary power for the site thus lowering the heat rate of the unit. Deep cool well water, lake water or ocean water at the sites can be used in another heat exchanger as the condensing medium.. The idea can reduce many of the ill effects of climate change that fossil fuels are bringing us today. The governments "Climate Action Plan" would help fund the idea: http://www.whitehouse.gov/climate-change


Who will take these actions?

Existing power plant businesses can install such systems mandated by government laws to lower fuel costs and GHG emissions. The governments "Climate Action Plan" would help fund the idea: http://www.whitehouse.gov/climate-change


Where will these actions be taken?

All power plant locations or other factories with exhaust gasses going to a stack..


How much will emissions be reduced or sequestered vs. business as usual levels?

This idea can recover about 7 megawatts of energy out of every 100 mw  of energy generated or 7%..


What are other key benefits?

The idea can reduce many of the ill effects of climate change that fossil fuels are bringing us today such as Co2. SOX, NOX, particulate matter, smog, higher sea levels, higher SST's and so on.


What are the proposal’s costs?

Perhaps a few million dollars per unit. Revenue from more power generated can pay for it pretty fast..


Time line

Phased in 5-15 years as demanded by governments and new laws.


Related proposals

Similar to other proposals I have here for Rankine Closed Loop cycle systems :

https://www.climatecolab.org/web/guest/plans/-/plans/contestId/1300701/planId/1306704  ,

https://www.climatecolab.org/web/guest/plans/-/plans/contestId/1300201/planId/1307127


References

Can't find any.