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Wyszukujesz frazę "Anand, P." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Optimal state estimation and on-line optimisation of a biochemical reactor
Autorzy:
Satya, E.J.
Anand, P.
Venkateswarlu, C.
Powiązania:
https://bibliotekanauki.pl/articles/185784.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bioprocess monitoring
dynamic simulation
model identification
optimization
control
monitorowanie bioprocesu
symulacja dynamiczna
identyfikacyjny modelu
optymalizacja
kontrola
Opis:
An on-line optimising control strategy involving a two level extended Kalman filter (EKF) for dynamic model identification and a functional conjugate gradient method for determining optimal operating condition is proposed and applied to a biochemical reactor. The optimiser incorporates the identified model and determines the optimal operating condition while maximising the process performance. This strategy is computationally advantageous as it involves separate estimation of states and process parameters in reduced dimensions. In addition to assisting on-line dynamic optimisation, the estimated time varying uncertain process parameter information can also be useful for continuous monitoring of the process. This strategy ensures that the biochemical reactor is operated at the optimal operation while taking care of the disturbances that are encountered during operation. The simulation results demonstrate the usefulness of the two level EKF assisted dynamic optimizer for on-line optimising control of uncertain nonlinear biochemical systems.
Źródło:
Chemical and Process Engineering; 2013, 34, 4; 449-462
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of research engine control unit using FPGA - based embedded control system
Autorzy:
Anand, B. P.
Saravanan, C. G.
Powiązania:
https://bibliotekanauki.pl/articles/246480.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
ECU
RECU
engine control algorithm
LabVIEW
virtual instrumentation
FPGA
fuel map
automotive sensor
Opis:
Though the Electronic Control Unit (ECU) systems are wide use in modern vehicles, they are manufactured by a few companies and supplied to engine manufacturers. Automotives with factory made ECUs designed to maximize the performance while minimize cost. However, factory made ECUs (FECU) have closed software and hardware. The control gain, lookup tables, and constants used in the algorithms are also calibrated for a particular engine design. Unlike the carburettor, these systems cannot be opened and studied under different operating conditions to determine their characteristics and how they influence the performance of an engine. They can be used as black boxes and work only at specified modes as determined by their electronic control unit (ECU) and more over the algorithms and their implementation are maintained as trade secret by the developers. In the research work, it often becomes necessary to study parameters like injection duration, injection timing, sensor responses etc. to ascertain their effects. Thus in such cases the factory made ECU supplied with the injection system cannot be used. The required need is fulfilled by developing a customized electronic controller that would be suitable for studying the variations at engine operating points. The project involved the development of a research ECU (RECU) using reconfigurable field programmable gate arrays (FPGA) based embedded control system for a four-stroke port fuel injected gasoline engine. A calibrated fuel map is generated for various operating points of the engine using virtual instrumentation (VI) based software while simulating functions of sensors. From the mapping, the fuel injection time and fuel delivery quantity is estimated for the required running conditions of the engine. The developed Research Electronic Control Unit (RECU) could reveal gasoline engine performance in particular for research-based applications as it involves frequent programme development and control implementations.
Źródło:
Journal of KONES; 2012, 19, 3; 9-18
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation on the Effect of Technological Parameters on Emission Factor in 316L Stainless Steel Using Gas Metal Arc Welding
Autorzy:
Satheesh Kumar, K. V.
Selvakumar, P.
Uvanshankar, K. R.
Thirunavukaras, U. S.
Anand, Vijay V.
Vishal, D.
Powiązania:
https://bibliotekanauki.pl/articles/2049738.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
emission factor
shielding gas
Permissible Exposure Limit
health hazards
glass fiber filter
Opis:
Growing awareness for occupational safety in the welding environment needs a sustainable welding system. Welding gases releases toxic tiny particles and gases that inflict severe health consequences in the weld zone are unsolicited. Some of the other main adverse effects are lung disease, hemoptysis, pulmonary inflammation, pneumoconiosis, etc. GMAW procedure has been used for welding 316L stainless steel plates of 3 mm, 5 mm, and 6 mm. Various current configurations with gas flow rate of 5 LPM, 10 LPM and 15 LPM were also used to achieve optimum butt joint performance and to reduce the production rate of fume contributing to cost-effectiveness. In this research a cost-effective fume extraction hood was fabricated for measuring emission factor produced during welding. Various shielding gas compositions including Pure Argon, Pure CO2, 92% Ar+8% CO2 and 88% Ar+12% CO2were used to determine the best operating parameters in the GMAW method. To satisfy the latest Permissible Exposure Limit (PEL) legislation, optimum technical parameters for efficient welding were acknowledged with the lowest emission factor. A maximum reduction of emission factor can be achieved by using Pure Argon. The inclusion of CO2 as a shielding gas mixture gives higher emission factor when compared to Pure Argon. Very low emission factor were witnessed in this research when compared to previous investigations. Lower emission factor of 2941.17 mg /kg of electrode, 4411.76 mg/kg of electrode and 7352.94 mg/kg of electrode were obtained for pure argon as shielding gas with 150 A welding current.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 609-615
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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