Name of the University : Jadavpur University
Department : Power Engineering
Degree : B.E
Subject Name : Power Plant Instrumentation And Control
Sem : I
Website : jaduniv.edu.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/dspace.jdvu.ac.in/5496-BPOWER~2.PDF
JAD Univ Power Plant Instrumentation Question Paper
B. Power Engineering Final Examination, 2008 :
Time : 3 hours
Full marks : 100
Related : Jadavpur University Design & Selection of Materials M.Tech Question Paper Model : www.pdfquestion.in/5493.html
1st Semester Supplementary
Answer any five questions. :
** A system is defined by Gs) = 5e2s – 1) What kind of controller would you recommend for this? What are the controller parameters? Use Ziegler Nichols method to derive the controller parameters and State the formula used.
** Is it possible to tune this system using Ziegler Nichols closed toop method? Explain your answer.?
** Calculate the steadystate error for a unity feedback loop for an open loop plant defined by Gs) = only controller for a step Input u. How does this change when a P controller is used?
** Calculate the proportional band for a gain of 20
** Why is a differential only controller never used?
** Ammonia is being produced In a chemical reactor according to the foliowing reaction. Devise a control system to control production rate of Ammonia by controlling flow rates of Nitrogen and Hydrogen to the reactor and represent the same using a proper process control schematic
** A 4-20 mA signal ls used to transmit Information related to measuremerit of water level in a tank with the process value varying between 0 to 400mm. What is the signal value if the process value is 100mm? Now, assume that this signal ls converted to a 0 to 5V signal which is fed to a 12bit sign adjusted successive approximation AC converter driven by a 5MHz clock and capable of handling inputs in the range 5 to 5 Volts calculate the corresponding ADC count and trie converSIOn tInne
** With the help of a neat schematic represent a 3 bit flasn ADC
** With the help of a neat schematic describe the working of a Crosslinked combustion control system In a oilfired boiler for decreasing load.
** Define Master Control Signal lin a thermal power piant
** With the help of a neat schematic explain the Turbine following boile mode of operation What are its advantages.
** What are the advantages of sliding pressure operation of Detlef
** What are its special features.
** With the help of a neat schematic explain the combustion ton: – a coal fired boiler What kind of control Is this? Why Is a temperat.fe 2ontrol loop used here? controller? What happens IS two controllers are used with a same reference Input?
** With the help of a neat schernatic explain stearn temperature control mechanism Draw the corresponding cascade control loop with master and slave controllers and remote and iocal Setooints.
Syllabus
PE/T/423 Power Plant Instrumentation And Control Syllabus :
Instrumentation- General concepts and objectives, instrumentation of complex systems, different types of power plants and role of instrumentation in controlling and monitoring the power production, optimization and adaptation, Thermal power plant instrumentation, controlling and monitoring of boilers, turbines and generators, Transformers, condensers and power plant auxiliaries.
Furnace draft and temperature control, combustion control, drum and feedwater level control, emergencies and actions, alarm and annunciation, safety, interlock and supervisory schemes, salient features of instrumentation of hydro-electric, nuclear and non-conventional power plants, Monitoring generation and load flow, plant efficiency, Excitation control and temperature profile.
PE/T/425C Power Plant Simulation And Modeling Syllabus :
Concept of a model- their classifications – concept of similarity and simulation – physical vs mathematical simulation – analog, digital and hybrid simulation, stochastic models – sampling techniques – data storage & data handling, identification & estimation of system parameters – on-line & off-line techniques, model validation – accuracy of simulation verses cost, modeling of power network & load, mathematical models of one-machine, two-machines & multi-machines problems, liberalization of models under small perturbation, reduced order models , time domain vs frequency domain analysis, computer methods of system analysis – stability assessment, simulation experiments – micro-machine model of power system.