Record Display for the EPA National Library Catalog


Main Title Model of Real-Time Automation and Control Systems for Combined Sewers.
Author Bel, Warren ; Win, Byron ; Smit, George L. ;
CORP Author Colorado State Univ., Fort Collins. Dept. of Civil Engineering.
Year Published 1972
Report Number TR-7; DI-14-31-0001-3410; OWRR-C-2207; 00151,; C-2207(7)
Stock Number PB-212 575
Additional Subjects ( Combined sewers ; Automatic control) ; ( Sewers ; Automatic control) ; ( Urban planning ; Combined sewers) ; Control systems ; Surface water runoff ; Hydrology ; Rain gages ; Rainfall ; Computer programs ; Real time operations ; Storm sewers ; Water pollution ; Flow control ; Overflow ; Water pollution control
Library Call Number Additional Info Location Last
NTIS  PB-212 575 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 142p
A simple Real-Time Automation and Control System (RTACS) Model, when completed, can be used as a tool to optimize the design of a prototype sewer system whose basic components would include: a physical system, sensing elements, control program, and control elements. A modified version of this model was used both to represent the physical system - including the generation and routing of runoff through the sewer system - and to generate runoff data for the control algorithm which employs optimal control theory. To demonstrate the applicability of the RTACS Model, control logic was developed in detail for a reasonable control objective and assumed physical drainage system served by a single main conduit with one lateral line. The operation of the drainage system was simulated by three reservoirs. Main line flow was simulated by two reservoirs operating in series. Combined flow was simulated by the single reservoir on the lateral acting in parallel with the main line flow at the junction point of the two pipe lines. (Author)