Recovery of enthalpy as work from thermal effluents
Enthalpy is recovered as work from hot industrial effluents by the controlled expansion of liquids through convergent-divergent nozzles in true reaction turbines. For hot liquid effluents, the effluent itself serves as the working fluid. For gaseous effluents, a high boiling stable liquid is heated by the gas in a scrubbing tower and then the liquid is expanded as the work fluid. If the effluents contain undesirable levels of particulate pollutants, the liquid is cleaned before it is expanded. This paper reports the results predicted when using both impulse and true reaction turbines. Results predicted when using work fluids as glycerol, tricresyl phosphate, bi-phenyls, and silicone oils are presented. Cycle efficiencies as high as 26% are predicted as possible. Recoveries as high as 30MW seem possible when using the approach as a bottoming cycle for a 460 MW steam-electric utility discharging flue gases at 500F.
- Research Organization:
- Puerto Rico Univ., Mayaguez
- OSTI ID:
- 5779253
- Report Number(s):
- PB-83-211227
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
FLUE GAS
HEAT RECOVERY
AIR POLLUTION
ELECTRIC POWER
ENTHALPY
FEASIBILITY STUDIES
PARTICLES
SCRUBBING
THERMAL POLLUTION
THERMAL POWER PLANTS
THERMODYNAMICS
ENERGY RECOVERY
GASEOUS WASTES
PHYSICAL PROPERTIES
POLLUTION
POWER
POWER PLANTS
RECOVERY
THERMODYNAMIC PROPERTIES
WASTES
500400* - Environment
Atmospheric- Thermal Effluents Monitoring & Transport- (-1989)
200201 - Fossil-Fueled Power Plants- Waste Management- Thermal Effluents