Synthesis of Optimal Chemical Reactor Networks

1996 ◽  
Vol 35 (4) ◽  
pp. 1344-1353 ◽  
Author(s):  
Ajay Lakshmanan ◽  
Lorenz T. Biegler
Keyword(s):  
Chemical Reactor ◽  
Reactor Networks

SELF-ORGANIZING AGENT-BASED GRADE TRANSITION IN DISTRIBUTED CHEMICAL REACTOR NETWORKS

2007 ◽  
Vol 40 (5) ◽  
pp. 179-184 ◽  
Author(s):  
M. Derya Tetiker ◽  
Eric Tatara ◽  
Michael North ◽  
Fouad Teymour ◽  
Ali Cinar
Keyword(s):  
Chemical Reactor ◽  
Agent Based ◽  
Grade Transition ◽  
Reactor Networks ◽  
Self Organizing

Agent-Based Control of Spatially Distributed Chemical Reactor Networks

2006 ◽  
pp. 222-231 ◽  
Author(s):  
Eric Tatara ◽  
Michael North ◽  
Cindy Hood ◽  
Fouad Teymour ◽  
Ali Cinar
Keyword(s):  
Chemical Reactor ◽  
Agent Based ◽  
Spatially Distributed ◽  
Reactor Networks

Modelling the Effect of External Flue Gas Recirculation on NOx and CO Emissions in a Premixed Gas Turbine Combustor With Chemical Reactor Networks

2018 ◽  
Author(s):  
V. Prakash ◽  
J. Steimes ◽  
D. J. E. M. Roekaerts ◽  
S. A. Klein
Keyword(s):  
Gas Turbine ◽  
Flue Gas ◽  
Recirculation Zone ◽  
Chemical Reactor ◽  
Inlet Temperature ◽  
Part Load ◽  
Flue Gas Recirculation ◽  
Reactor Networks ◽  
Gas Recirculation ◽  
The Impact

The increasing amount of renewable energy and emission norms challenge gas turbine power plants to operate at part-load with high efficiency, while reducing NOx and CO emissions. A novel solution to this dilemma is external Flue Gas Recirculation (FGR), in which flue gases are recirculated to the gas turbine inlet, increasing compressor inlet temperature and enabling higher part load efficiencies. FGR also alters the oxidizer composition, potentially leading to reduced NOx levels. This paper presents a kinetic model using chemical reactor networks in a lean premixed combustor to study the impact of FGR on emissions. The flame zone is split in two perfectly stirred reactors modelling the flame front and the recirculation zone. The flame reactor is determined based on a chemical time scale approach, accounting for different reaction kinetics due to FGR oxidizers. The recirculation zone is determined through empirical correlations. It is followed by a plug flow reactor. This method requires less details of the flow field, has been validated with literature data and is generally applicable for modelling premixed flames. Results show that due to less O2 concentration, NOx formation is inhibited down to 10–40% and CO levels are escalated up to 50%, for identical flame temperatures. Increasing combustor pressure leads to a rise in NOx due to thermal effects beyond 1800 K, and a drop in CO levels, due to the reduced chemical dissociation of CO2. Wet FGR reduces NOx by 5–10% and increases CO by 10–20%.

scholarly journals A SIMULATION FOR PREDICTION THE NITROGEN OXIDE EMISSIONS IN LEAN PREMIXED COMBUSTOR

2010 ◽  
Vol 13 (4) ◽  
pp. 74-83
Author(s):  
Hao Thanh Nguyen ◽  
Nam Thanh Nguyen ◽  
Jungkyu Park
Keyword(s):  
Fluid Dynamics ◽  
Chemical Reactor ◽  
Operating Conditions ◽  
Combustion System ◽  
Gas Turbine Combustor ◽  
Nitrogen Oxide Emissions ◽  
Lean Premixed ◽  
Reactor Networks ◽  
Computational Fluid Dynamics Cfd ◽  
Reactor Models

The development of chemical reactor models to predict NOx emission is very important for the modern combustion system design. In this study, chemical reactor networks (CRN) models are constructed base on the computational fluid dynamics (CFD). The boundary and operating conditions used for these CRN model reflect the typical operating conditions of the lean premixed gas turbine combustor. The global mechanism has been developed by GRI 3.0 in the UW chemical reactor code [2]. For reliability of the predictive model, the model was analyzed and compared to the experimental test combustor.

Synthesis of optimal chemical reactor networks

1999 ◽  
Vol 23 ◽  
pp. S47-S50 ◽  
Author(s):  
C.A. Schweiger ◽  
C.A. Floudas
Keyword(s):  
Chemical Reactor ◽  
Reactor Networks

Control of grade transitions in distributed chemical reactor networks—An agent-based approach

2008 ◽  
Vol 32 (9) ◽  
pp. 1984-1994 ◽  
Author(s):  
M. Derya Tetiker ◽  
Arsun Artel ◽  
Fouad Teymour ◽  
Ali Cinar
Keyword(s):  
Chemical Reactor ◽  
Agent Based ◽  
Reactor Networks
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