Main Title |
Steam Car Control Analysis. |
Author |
Maye, E. A. ;
Hurlong, J, G. W. ;
|
CORP Author |
Bendix Corp., Southfield, Mich. Bendix Research Labs. |
Year Published |
1972 |
Report Number |
BRL-6329; EPA-68-03-0004; 1545; |
Stock Number |
PB-222 349 |
Additional Subjects |
( Automobile engines ;
Steam engines) ;
( Steam engines ;
Process control) ;
Motor vehicle engines ;
External combustion engines ;
Computerized simulation ;
Mathematical models ;
Design ;
Performance evaluation ;
Tests ;
Optimization ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-222 349 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
181p |
Abstract |
The selection of the best control mode for a steam-car power plant and experimental verification of the soundness of the concept through pre-prototype control hardware is presented. A new control concept, the predictive flow-control system, was proposed; it includes the use of the expander as a positive-displacement machine so give an indication of instantaneous steam-flow requirements. A strong open-loop control system then adjusts both the burner power level and the feedwater supply system to satisfy this demand. Secondary closed-loop controls correct any deviations in the output pressure and temperature of the steam generator from the desired set points. The corrections are accomplished by an appropriate trim-control function in both the burner and feedwater supply systems. A wide-range, analytical model of the vapor generator was combined with an analytical description of the expander and all auxiliaries to form a hybrid-computer simulation. Results were compared with experimental data on the Steam Engine Systems Model-4 vapor-generating system. |