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Title: Recovering waste industrial heat efficiently

Organic Rankine Cycles (ORC's) are being used in the generation of electrical or mechanical power in situations where little demand exists for process steam. Using organic fluids in Rankine cycles improves the potential for economic recovery of waste heat. The right organic fluid can enhance the conversion efficiency by tailoring the ORC heat recovery cycle to the thermodynamic characteristics of the waste heat stream. The selection of the working fluid is affected by its flammability, toxicity, environmental impact, materials compatibility, and cost. Water, ethanol, 2-methyl Pyridine/H2O, Flourinol, Toluene, Freon R-11, and Freon R-113 are compared. An organic cycle using toluene as the working fluid is schematicized.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
5141758
Resource Type:
Journal Article
Resource Relation:
Journal Name: Spec. Eng.; (United States); Journal Volume: 49:3
Research Org:
Gilbert/Commonwealth, Reading, PA
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 42 ENGINEERING; FREONS; COMPARATIVE EVALUATIONS; RANKINE CYCLE; WASTE HEAT UTILIZATION; WORKING FLUIDS; COST; ENVIRONMENTAL IMPACTS; ETHANOL; FLAME PROPAGATION; FLUORINE; HEAT RECOVERY; ORGANIC SOLVENTS; PICOLINES; POWER GENERATION; PROCESS HEAT; THERMODYNAMIC CYCLES; TOLUENE; TOXICITY; WATER; ALCOHOLS; AROMATICS; AZINES; ELEMENTS; ENERGY; ENERGY RECOVERY; FLUIDS; HALOGENATED ALIPHATIC HYDROCARBONS; HALOGENS; HEAT; HETEROCYCLIC COMPOUNDS; HYDROCARBONS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PYRIDINES; RECOVERY; SOLVENTS; WASTE PRODUCT UTILIZATION 320304* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization; 425000 -- Engineering-- Power Cycles-- (1980-)