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DIGITAL SIMULATION OF THE EFFECT OF THERMAL DISCHARGE ON STREAM WATER QUALITY 1
Author(s) -
Lin S. H.,
Fan L. T.,
Hwang C. L.
Publication year - 1973
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1973.tb01791.x
Subject(s) - upstream (networking) , environmental science , transient (computer programming) , water quality , energy balance , thermal , nonlinear system , partial differential equation , hydrology (agriculture) , mechanics , computer science , geotechnical engineering , meteorology , mathematics , engineering , thermodynamics , physics , computer network , ecology , mathematical analysis , quantum mechanics , biology , operating system
A modified transient version of the Streeter‐Phelps model along with the energy balance equation is employed to analyze the effects of waste heat discharge from power plants on stream water quality. Analysis is also made to examine the effects of the upstream water quality and stream velocity on the downstream DO concentration level. The resulting coupled nonlinear hyperbolic partial differential equations representing the energy, BOD and DO concentrations are solved by the method of characteristics and simulated on a digital computer. Final numerical results indicate that the allowable quantity of thermal discharge does heavily depend on the upstream quality.