Dynamics and control of loop reactors: a review
نویسندگان
چکیده
In the loop reactor (LR) system is composed of several units that are organized in a and feeding takes place at one ports with switching feed port periodic way. its simplest operation pulse formed rotates around it, producing high temperatures which enable combustion dilute streams. A limiting model infinite number was derived. Rotating pulses, steady coordinate moving switch velocity, emerge both asymptotic discrete models when ratio to front propagation velocities unity. But this behavior exists over narrow domain ratio. Simulations were conducted generic first order Arrhenius kinetics. Experimental observations simple frozen rotating pulses reviewed. Outside patterns may exhibit multi- or quasi-periodic separated by domains inactive reaction. The bifurcation set incorporates many ’finger’-like complex frequency-locked solutions allow significantly extend higher temperature concentration. Control necessary attain stable within active operation. Various control approaches suggested, experimentally applied for purpose, Actual implementation LR will involve reactants different ignition varying Design should be aimed locked fronts avoid extinction slower
منابع مشابه
Design a Guidance Law Considering Approximation of Missile Control Loop Dynamics Using Adaptive Back-Stepping Theory
In this paper, a new guidance law is designed to improve the performance of a homing missiles guidance system in terminal phase. For this purpose first of all, the two dimensions equations of motion are formulated, then the approximation dynamic of missile control loop is added to these equations which are nonlinear whit unmatched uncertainty. Then, a new adaptive back-stepping method is develo...
متن کاملInstrumentation and Control Implementations in Research Reactors: A Review
Instrumentation and control (I&C) is a key element to research reactor (RR) safety responsible for control actions involving startup, power regulation and shutdown as well as abnormal condition management. Unfortunately, system obsolescence that is frequently accompanied by spare part unavailability may result in operational problems and extended reactor shutdown periods. In addition, novel req...
متن کاملa comparison of linguistic and pragmatic knowledge: a case of iranian learners of english
در این تحقیق دانش زبانشناسی و کاربردشناسی زبان آموزان ایرانی در سطح بالای متوسط مقایسه شد. 50 دانش آموز با سابقه آموزشی مشابه از شش آموزشگاه زبان مختلف در دو آزمون دانش زبانشناسی و آزمون دانش گفتار شناسی زبان انگلیسی شرکت کردند که سوالات هر دو تست توسط محقق تهیه شده بود. همچنین در این تحقیق کارایی کتابهای آموزشی زبان در فراهم آوردن درون داد کافی برای زبان آموزان ایرانی به عنوان هدف جانبی تحقیق ...
15 صفحه اولNonlinear Guidance Law with Finite Time Convergence Considering Control Loop Dynamics
In this paper a new nonlinear guidance law with finite time convergence is proposed. The second order integrated guidance and control loop is formulated considering a first order control loop dynamics. By transforming the state equations to the normal form, a finite time stabilizer feedback linearization technique is proposed to guarantee the finite time convergence of the system states to zero...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathematical Modelling of Natural Phenomena
سال: 2021
ISSN: ['1760-6101', '0973-5348']
DOI: https://doi.org/10.1051/mmnp/2021035