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논문 기본 정보

자료유형
학술대회자료
저자정보
B. Sankararao (Korea Advanced Institute of Science and Technology) Jay Hyung Lee (Korea Advanced Institute of Science and Technology)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2012
발행연도
2012.10
수록면
594 - 600 (7page)

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초록· 키워드

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Dynamic model used for simulation of an industrial side-fired steam reformer comprises coupled PDEs for concentrations of different components and temperature of the gas phase (i.e., outside the catalyst particles), and second order ODEs for concentrations of components in the catalyst phase (i.e., in the pores of the catalyst particles). A MATLAB<SUP>®</SUP> code is developed to solve these equations, and used for analysis of 3 idealized disturbances in the input variables. Effects of 1) step increase in the inlet feed temperature; 2) step decrease in the inlet steam to CH<SUB>4</SUB> ratio; and 3) step increase in the inlet H<SUB>2</SUB> to CH<SUB>4</SUB> ratio; on different output variables (along axial position and time) are studied. Control problems solved using the code developed for solving dynamic model and MPC toolbox in SIMULINK<SUP>®</SUP> are: 1) Controlling the exit hydrogen and CO mass flow rates at desired values for a step increase in the inlet feed temperature (T<SUB>in</SUB>) by manipulating furnace gas temperature (T<SUB>g</SUB>), H<SUB>2</SUB> to CH<SUB>4</SUB> and steam to CH<SUB>4</SUB> ratios; 2) Controlling the exit H<SUB>2</SUB> and CO mass flow rates at desired values for a step decrease in the inlet flow rate of methane by manipulating T<SUB>g</SUB>, H<SUB>2</SUB> to CH<SUB>4</SUB> and steam to CH<SUB>4</SUB> ratios. The dynamic profiles obtained for different variables after solving the above two problems are analyzed.

목차

Abstract
1. INTRODUCTION
2. DYNAMIC MODEL OF A STEAM REFORMER
3. SIMULATION PROCEDURE
4. RESULTS AND DISCUSSION
CONCLUSIONS
REFERENCES

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